Initial commit: Redmine Workflow Engine Plugin

Features:
- Custom workflow creation per project/tracker
- Step-by-step workflow definition
- Assignees per step (user, role group, department)
- Next/Previous step navigation
- Reject to first step
- Skip step (admin only)
- Step deadline settings
- Workflow dashboard
- Group member selection when proceeding

🤖 Generated with Claude Code

app/controllers/issue_workflows_controller.rb

@@ -0,0 +1,177 @@
+class IssueWorkflowsController < ApplicationController
+  before_action :find_issue
+  before_action :find_or_create_workflow_state
+
+  def show
+    @steps = @workflow_state.custom_workflow.workflow_steps.ordered
+    @current_step = @workflow_state.current_step
+  end
+
+  def next_step
+    if @workflow_state.can_proceed?(User.current)
+      selected_assignee_id = params[:assignee_id]
+      if @workflow_state.proceed!(User.current, selected_assignee_id)
+        flash[:notice] = '다음 단계로 이동했습니다.'
+      else
+        flash[:error] = '다음 단계로 이동할 수 없습니다.'
+      end
+    else
+      flash[:error] = '이 단계를 완료할 권한이 없습니다.'
+    end
+    redirect_to issue_path(@issue)
+  end
+
+  def prev_step
+    if @workflow_state.can_go_back?(User.current)
+      if @workflow_state.go_back!(User.current)
+        flash[:notice] = '이전 단계로 되돌렸습니다.'
+      else
+        flash[:error] = '이전 단계로 이동할 수 없습니다.'
+      end
+    else
+      flash[:error] = '이전 단계로 되돌릴 권한이 없습니다.'
+    end
+    redirect_to issue_path(@issue)
+  end
+
+  def complete
+    current_step = @workflow_state.current_step
+    if current_step&.is_end && (User.current.admin? || current_step.assignee?(User.current))
+      @issue.init_journal(User.current, "워크플로우 완료 처리")
+      @issue.status_id = 5  # 완료 상태
+      if @issue.save(validate: false)
+        @workflow_state.update(completed_at: Time.current, completed_by: User.current)
+        flash[:notice] = '이슈가 완료 처리되었습니다.'
+      else
+        flash[:error] = '완료 처리에 실패했습니다.'
+      end
+    else
+      flash[:error] = '완료 처리 권한이 없습니다.'
+    end
+    redirect_to issue_path(@issue)
+  end
+
+  def reject
+    current_step = @workflow_state.current_step
+    reason = params[:reason].to_s.strip
+
+    unless current_step && !current_step.is_start && (User.current.admin? || current_step.assignee?(User.current))
+      flash[:error] = '반려 권한이 없습니다.'
+      redirect_to issue_path(@issue)
+      return
+    end
+
+    if reason.blank?
+      flash[:error] = '반려 사유를 입력해주세요.'
+      redirect_to issue_path(@issue)
+      return
+    end
+
+    # 항상 최초 단계로 반려
+    first_step = @workflow_state.custom_workflow.workflow_steps.ordered.first
+
+    if first_step
+      # 이력 남기기
+      @issue.init_journal(User.current, "[반려] #{current_step.name} → #{first_step.name}\n사유: #{reason}")
+
+      # 상태 변경 (최초 단계의 상태로)
+      if first_step.issue_status_id.present?
+        @issue.status_id = first_step.issue_status_id
+      end
+
+      # 담당자 변경 - 개인 사용자일 때만, 그룹/부서는 미지정
+      user_assignees = first_step.workflow_step_assignees.where(assignee_type: 'user')
+      if user_assignees.any?
+        @issue.assigned_to_id = user_assignees.first.assignee_id
+      elsif first_step.workflow_step_assignees.any?
+        @issue.assigned_to_id = nil
+      end
+
+      @issue.save(validate: false)
+      @workflow_state.update(current_step: first_step, completed_at: nil, completed_by: nil)
+
+      flash[:notice] = "#{first_step.name} 단계로 반려되었습니다."
+    else
+      flash[:error] = '반려 대상 단계를 찾을 수 없습니다.'
+    end
+
+    redirect_to issue_path(@issue)
+  end
+
+  def skip_step
+    # 관리자만 단계 건너뛰기 가능
+    unless User.current.admin?
+      flash[:error] = '관리자만 단계를 건너뛸 수 있습니다.'
+      redirect_to issue_path(@issue)
+      return
+    end
+
+    current_step = @workflow_state.current_step
+    target_step_id = params[:target_step_id]
+    reason = params[:reason].to_s.strip
+
+    if target_step_id.blank?
+      flash[:error] = '이동할 단계를 선택해주세요.'
+      redirect_to issue_path(@issue)
+      return
+    end
+
+    target_step = WorkflowStep.find_by(id: target_step_id)
+
+    if target_step && target_step.custom_workflow_id == @workflow_state.custom_workflow_id
+      # 이력 남기기
+      note = "[단계 건너뛰기] #{current_step&.name || '(시작)'} → #{target_step.name}"
+      note += "\n사유: #{reason}" if reason.present?
+      @issue.init_journal(User.current, note)
+
+      # 상태 변경
+      if target_step.issue_status_id.present?
+        @issue.status_id = target_step.issue_status_id
+      end
+
+      # 담당자 변경 - 개인 사용자일 때만, 그룹/부서는 미지정
+      user_assignees = target_step.workflow_step_assignees.where(assignee_type: 'user')
+      if user_assignees.any?
+        @issue.assigned_to_id = user_assignees.first.assignee_id
+      elsif target_step.workflow_step_assignees.any?
+        @issue.assigned_to_id = nil
+      end
+
+      @issue.save(validate: false)
+      @workflow_state.update(current_step: target_step, completed_at: nil, completed_by: nil)
+
+      flash[:notice] = "#{target_step.name} 단계로 이동했습니다."
+    else
+      flash[:error] = '이동할 단계를 찾을 수 없습니다.'
+    end
+
+    redirect_to issue_path(@issue)
+  end
+
+  private
+
+  def find_issue
+    @issue = Issue.find(params[:issue_id])
+  rescue ActiveRecord::RecordNotFound
+    render_404
+  end
+
+  def find_or_create_workflow_state
+    @workflow_state = IssueWorkflowState.find_by(issue_id: @issue.id)
+
+    unless @workflow_state
+      workflow = CustomWorkflow.find_for_issue(@issue)
+      if workflow
+        @workflow_state = IssueWorkflowState.create!(
+          issue: @issue,
+          custom_workflow: workflow,
+          current_step: workflow.start_step,
+          started_at: Time.current
+        )
+      else
+        flash[:warning] = '이 이슈에 적용할 워크플로우가 없습니다.'
+        redirect_to issue_path(@issue)
+      end
+    end
+  end
+end

app/controllers/workflow_dashboard_controller.rb

@@ -0,0 +1,92 @@
+class WorkflowDashboardController < ApplicationController
+  before_action :require_login
+
+  def index
+    @projects = Project.visible.has_module(:issue_tracking).to_a
+
+    # 전체 워크플로우 통계
+    @total_stats = {
+      active_workflows: CustomWorkflow.where(active: true).count,
+      issues_in_workflow: IssueWorkflowState.where(completed_at: nil).count,
+      completed_today: IssueWorkflowState.where('completed_at >= ?', Date.today).count
+    }
+
+    # 프로젝트별 현황
+    @project_stats = []
+    @projects.each do |project|
+      workflows = CustomWorkflow.where(project_id: [project.id, nil]).where(active: true)
+      issue_ids = Issue.where(project_id: project.id).pluck(:id)
+      states = IssueWorkflowState.where(issue_id: issue_ids)
+
+      in_progress = states.where(completed_at: nil).count
+      completed = states.where.not(completed_at: nil).count
+
+      if in_progress > 0 || completed > 0
+        @project_stats << {
+          project: project,
+          workflows_count: workflows.count,
+          in_progress: in_progress,
+          completed: completed
+        }
+      end
+    end
+
+    # 내 담당 이슈 (현재 단계 담당자가 나인 경우)
+    @my_issues = find_my_workflow_issues(User.current)
+
+    # 지연된 이슈 (기한이 있고 초과된 경우)
+    @overdue_issues = find_overdue_issues
+  end
+
+  def project
+    @project = Project.find(params[:project_id])
+
+    # 해당 프로젝트의 워크플로우들
+    @workflows = CustomWorkflow.where(project_id: [params[:project_id], nil]).where(active: true)
+
+    # 프로젝트 이슈들의 워크플로우 상태
+    issue_ids = Issue.where(project_id: @project.id).pluck(:id)
+    @workflow_states = IssueWorkflowState.includes(:issue, :current_step, :custom_workflow)
+                                          .where(issue_id: issue_ids)
+                                          .order(updated_at: :desc)
+
+    # 단계별 그룹핑
+    @steps_summary = {}
+    @workflow_states.where(completed_at: nil).each do |state|
+      step_name = state.current_step&.name || '(알 수 없음)'
+      @steps_summary[step_name] ||= []
+      @steps_summary[step_name] << state
+    end
+  end
+
+  private
+
+  def find_my_workflow_issues(user)
+    return [] unless user.logged?
+
+    states = IssueWorkflowState.includes(:issue, :current_step, :custom_workflow)
+                                .where(completed_at: nil)
+
+    my_states = states.select do |state|
+      state.current_step&.assignee?(user)
+    end
+
+    my_states.take(20)  # 최대 20개
+  end
+
+  def find_overdue_issues
+    states = IssueWorkflowState.includes(:issue, :current_step)
+                                .where(completed_at: nil)
+
+    overdue = states.select do |state|
+      next false unless state.current_step&.due_days.present?
+
+      # 현재 단계에 머문 시간 계산
+      step_started_at = state.updated_at
+      due_date = step_started_at + state.current_step.due_days.days
+      due_date < Time.current
+    end
+
+    overdue.take(20)
+  end
+end

app/controllers/workflow_steps_controller.rb

@@ -0,0 +1,91 @@
+class WorkflowStepsController < ApplicationController
+  layout 'admin'
+  before_action :require_admin
+  before_action :find_workflow, only: [:create, :update, :destroy, :move]
+  before_action :find_step, only: [:update, :destroy, :move]
+
+  def create
+    @step = @workflow.workflow_steps.build(step_params)
+    if @step.save
+      flash[:notice] = '단계가 추가되었습니다.'
+    else
+      flash[:error] = @step.errors.full_messages.join(', ')
+    end
+    redirect_to custom_workflow_path(@workflow)
+  end
+
+  def update
+    if @step.update(step_params)
+      flash[:notice] = '단계가 수정되었습니다.'
+    else
+      flash[:error] = @step.errors.full_messages.join(', ')
+    end
+    redirect_to custom_workflow_path(@workflow)
+  end
+
+  def destroy
+    @step.destroy
+    flash[:notice] = '단계가 삭제되었습니다.'
+    redirect_to custom_workflow_path(@workflow)
+  end
+
+  def move
+    direction = params[:direction]
+    if direction == 'up' && @step.position > 0
+      swap_step = @workflow.workflow_steps.find_by(position: @step.position - 1)
+      if swap_step
+        swap_step.update(position: @step.position)
+        @step.update(position: @step.position - 1)
+      end
+    elsif direction == 'down'
+      swap_step = @workflow.workflow_steps.find_by(position: @step.position + 1)
+      if swap_step
+        swap_step.update(position: @step.position)
+        @step.update(position: @step.position + 1)
+      end
+    end
+    redirect_to custom_workflow_path(@workflow)
+  end
+
+  # 담당자 추가
+  def add_assignee
+    @step = WorkflowStep.find(params[:step_id])
+    assignee = @step.workflow_step_assignees.build(
+      assignee_type: params[:assignee_type],
+      assignee_id: params[:assignee_id]
+    )
+    if assignee.save
+      flash[:notice] = '담당자가 추가되었습니다.'
+    else
+      flash[:error] = assignee.errors.full_messages.join(', ')
+    end
+    redirect_to custom_workflow_path(@step.custom_workflow)
+  end
+
+  # 담당자 제거
+  def remove_assignee
+    @step = WorkflowStep.find(params[:step_id])
+    assignee = @step.workflow_step_assignees.find(params[:id])
+    assignee.destroy
+    flash[:notice] = '담당자가 제거되었습니다.'
+    redirect_to custom_workflow_path(@step.custom_workflow)
+  end
+
+  private
+
+  def find_workflow
+    @workflow = CustomWorkflow.find(params[:workflow_id])
+  rescue ActiveRecord::RecordNotFound
+    render_404
+  end
+
+  def find_step
+    @step = @workflow.workflow_steps.find(params[:id])
+  rescue ActiveRecord::RecordNotFound
+    render_404
+  end
+
+  def step_params
+    params.require(:workflow_step).permit(:name, :description, :issue_status_id, :is_start, :is_end, :due_days)
+  end
+end

app/controllers/workflows_controller.rb

@@ -0,0 +1,97 @@
+class WorkflowsController < ApplicationController
+  layout 'admin'
+  before_action :require_admin
+  before_action :find_workflow, only: [:show, :edit, :update, :destroy]
+
+  def index
+    @workflows = CustomWorkflow.includes(:tracker, :project, :workflow_steps).order(:name)
+  end
+
+  def show
+    @steps = @workflow.workflow_steps.includes(:workflow_step_assignees).ordered
+  end
+
+  def new
+    @workflow = CustomWorkflow.new
+  end
+
+  def create
+    @workflow = CustomWorkflow.new(workflow_params)
+    if @workflow.save
+      flash[:notice] = '워크플로우가 생성되었습니다.'
+      redirect_to custom_workflow_path(@workflow)
+    else
+      render :new
+    end
+  end
+
+  def edit
+  end
+
+  def update
+    if @workflow.update(workflow_params)
+      flash[:notice] = '워크플로우가 수정되었습니다.'
+      redirect_to '/custom_workflows'
+    else
+      render :edit
+    end
+  end
+
+  def destroy
+    @workflow.destroy
+    flash[:notice] = '워크플로우가 삭제되었습니다.'
+    redirect_to '/custom_workflows'
+  end
+
+  # 사용자 검색
+  def search_users
+    query = params[:q].to_s.strip
+    if query.length < 2
+      render json: []
+      return
+    end
+
+    users = User.active
+                .where('LOWER(login) LIKE :q OR LOWER(firstname) LIKE :q OR LOWER(lastname) LIKE :q',
+                       q: "%#{query.downcase}%")
+                .limit(20)
+
+    render json: users.map { |u| { id: u.id, name: u.name, login: u.login } }
+  end
+
+  # 역할 그룹 검색
+  def search_role_groups
+    query = params[:q].to_s.strip
+    groups = if query.length >= 2
+               RoleGroup.where('LOWER(name) LIKE ?', "%#{query.downcase}%").limit(20)
+             else
+               RoleGroup.sorted.limit(20)
+             end
+
+    render json: groups.map { |g| { id: g.id, name: g.name, count: g.member_count } }
+  end
+
+  # 부서 검색
+  def search_departments
+    query = params[:q].to_s.strip
+    depts = if query.length >= 2
+              Department.where('LOWER(name) LIKE ?', "%#{query.downcase}%").limit(20)
+            else
+              Department.sorted.limit(20)
+            end
+
+    render json: depts.map { |d| { id: d.id, name: d.name, type: d.type_name, count: d.member_count } }
+  end
+
+  private
+
+  def find_workflow
+    @workflow = CustomWorkflow.find(params[:id])
+  rescue ActiveRecord::RecordNotFound
+    render_404
+  end
+
+  def workflow_params
+    params.require(:custom_workflow).permit(:name, :description, :tracker_id, :project_id, :is_default, :active)
+  end
+end

app/models/custom_workflow.rb

@@ -0,0 +1,41 @@
+class CustomWorkflow < ActiveRecord::Base
+  belongs_to :tracker, optional: true
+  belongs_to :project, optional: true
+  has_many :workflow_steps, -> { order(:position) }, dependent: :destroy
+  has_many :issue_workflow_states, dependent: :destroy
+
+  validates :name, presence: true
+
+  scope :active, -> { where(active: true) }
+  scope :for_tracker, ->(tracker_id) { where(tracker_id: [tracker_id, nil]) }
+  scope :for_project, ->(project_id) { where(project_id: [project_id, nil]) }
+
+  def start_step
+    workflow_steps.find_by(is_start: true) || workflow_steps.first
+  end
+
+  def end_step
+    workflow_steps.find_by(is_end: true) || workflow_steps.last
+  end
+
+  def step_count
+    workflow_steps.count
+  end
+
+  def self.find_for_issue(issue)
+    # 프로젝트 + 트래커 매칭 먼저
+    wf = active.where(project_id: issue.project_id, tracker_id: issue.tracker_id).first
+    return wf if wf
+
+    # 트래커만 매칭
+    wf = active.where(project_id: nil, tracker_id: issue.tracker_id).first
+    return wf if wf
+
+    # 프로젝트만 매칭
+    wf = active.where(project_id: issue.project_id, tracker_id: nil).first
+    return wf if wf
+
+    # 기본 워크플로우
+    active.where(is_default: true).first
+  end
+end

app/models/issue_workflow_state.rb

@@ -0,0 +1,111 @@
+class IssueWorkflowState < ActiveRecord::Base
+  belongs_to :issue
+  belongs_to :custom_workflow
+  belongs_to :current_step, class_name: 'WorkflowStep', optional: true
+  belongs_to :completed_by, class_name: 'User', optional: true
+
+  validates :issue_id, presence: true, uniqueness: true
+  validates :custom_workflow_id, presence: true
+
+  def current_step_name
+    current_step&.name || '(시작 전)'
+  end
+
+  def progress_percent
+    return 0 unless current_step
+    total = custom_workflow.step_count
+    return 100 if current_step.last_step?
+
+    current_position = current_step.position + 1
+    (current_position.to_f / total * 100).round
+  end
+
+  def can_proceed?(user)
+    return false unless current_step
+    return false if completed?
+    return true if user.admin?  # 관리자는 항상 가능
+    return true if current_step.first_step? && issue.author == user  # 첫 단계는 작성자가 진행 가능
+    return true if current_step.workflow_step_assignees.empty?  # 담당자 없으면 누구나 가능
+    current_step.assignee?(user)
+  end
+
+  def can_go_back?(user)
+    return false unless current_step
+    return false if current_step.first_step?
+    # 관리자이거나 이전 단계 담당자면 가능
+    user.admin? || current_step.prev_step&.assignee?(user)
+  end
+
+  def proceed!(user, selected_assignee_id = nil)
+    return false unless can_proceed?(user)
+
+    next_step = current_step.next_step
+    if next_step
+      update(current_step: next_step)
+      update_issue_for_step(next_step, selected_assignee_id)
+    else
+      # 마지막 단계 완료
+      update(completed_at: Time.current, completed_by: user)
+      # 마지막 단계의 상태로 변경
+      update_issue_for_step(current_step)
+    end
+    true
+  end
+
+  def go_back!(user)
+    return false unless can_go_back?(user)
+
+    prev_step = current_step.prev_step
+    if prev_step
+      update(current_step: prev_step, completed_at: nil, completed_by: nil)
+      update_issue_for_step(prev_step)
+    end
+    true
+  end
+
+  def completed?
+    completed_at.present?
+  end
+
+  def visible_to?(user)
+    return true if user.admin?
+    return true if issue.author == user
+    return true if current_step&.assignee?(user)
+
+    # 모든 단계의 담당자인지 확인
+    custom_workflow.workflow_steps.any? { |step| step.assignee?(user) }
+  end
+
+  private
+
+  def update_issue_for_step(step, selected_assignee_id = nil)
+    return unless step
+
+    # 이력 남기기 위해 journal 초기화
+    issue.init_journal(User.current, "워크플로우: #{step.name} 단계로 이동")
+
+    # 상태 변경
+    if step.issue_status_id.present?
+      issue.status_id = step.issue_status_id
+    end
+
+    # 담당자 변경
+    if selected_assignee_id.present?
+      # 선택된 담당자가 있으면 그 사람으로 할당
+      issue.assigned_to_id = selected_assignee_id
+    else
+      # 개인 사용자가 지정된 경우 첫번째 사용자로 할당
+      user_assignees = step.workflow_step_assignees.where(assignee_type: 'user')
+      if user_assignees.any?
+        issue.assigned_to_id = user_assignees.first.assignee_id
+      elsif step.workflow_step_assignees.any?
+        # 그룹/부서만 있고 선택 안된 경우 첫번째 멤버로 할당
+        assignees = step.all_assignee_users
+        issue.assigned_to_id = assignees.first&.id
+      end
+    end
+
+    # validate: false로 저장 (프로젝트 멤버 체크 우회, 이력은 남김)
+    issue.save(validate: false)
+  end
+end

app/models/workflow_step.rb

@@ -0,0 +1,60 @@
+class WorkflowStep < ActiveRecord::Base
+  belongs_to :custom_workflow
+  belongs_to :issue_status, optional: true
+  has_many :workflow_step_assignees, dependent: :destroy
+  has_many :issue_workflow_states, foreign_key: :current_step_id
+
+  validates :name, presence: true
+  validates :custom_workflow_id, presence: true
+
+  scope :ordered, -> { order(:position) }
+
+  before_create :set_position
+
+  def next_step
+    custom_workflow.workflow_steps.where('position > ?', position).order(:position).first
+  end
+
+  def prev_step
+    custom_workflow.workflow_steps.where('position < ?', position).order(position: :desc).first
+  end
+
+  def first_step?
+    is_start || position == custom_workflow.workflow_steps.minimum(:position)
+  end
+
+  def last_step?
+    is_end || position == custom_workflow.workflow_steps.maximum(:position)
+  end
+
+  # 이 단계의 모든 담당자 (사람, 역할그룹 멤버, 부서원 포함)
+  def all_assignee_users
+    users = []
+    workflow_step_assignees.each do |assignee|
+      case assignee.assignee_type
+      when 'user'
+        user = User.find_by(id: assignee.assignee_id)
+        users << user if user
+      when 'role_group'
+        role_group = RoleGroup.find_by(id: assignee.assignee_id)
+        users.concat(role_group.users.to_a) if role_group
+      when 'department'
+        department = Department.find_by(id: assignee.assignee_id)
+        users.concat(department.users.to_a) if department
+      end
+    end
+    users.uniq
+  end
+
+  # 특정 사용자가 이 단계의 담당자인지 확인
+  def assignee?(user)
+    all_assignee_users.include?(user)
+  end
+
+  private
+
+  def set_position
+    max_position = custom_workflow.workflow_steps.maximum(:position) || -1
+    self.position = max_position + 1
+  end
+end

app/models/workflow_step_assignee.rb

@@ -0,0 +1,41 @@
+class WorkflowStepAssignee < ActiveRecord::Base
+  belongs_to :workflow_step
+
+  validates :workflow_step_id, presence: true
+  validates :assignee_type, presence: true, inclusion: { in: %w[user role_group department] }
+  validates :assignee_id, presence: true
+  validates :assignee_id, uniqueness: { scope: [:workflow_step_id, :assignee_type] }
+
+  def assignee
+    case assignee_type
+    when 'user'
+      User.find_by(id: assignee_id)
+    when 'role_group'
+      RoleGroup.find_by(id: assignee_id)
+    when 'department'
+      Department.find_by(id: assignee_id)
+    end
+  end
+
+  def assignee_name
+    obj = assignee
+    return '(삭제됨)' unless obj
+
+    case assignee_type
+    when 'user'
+      obj.name
+    when 'role_group'
+      "#{obj.name} (역할그룹)"
+    when 'department'
+      "#{obj.name} (부서)"
+    end
+  end
+
+  def type_label
+    case assignee_type
+    when 'user' then '사용자'
+    when 'role_group' then '역할 그룹'
+    when 'department' then '부서'
+    end
+  end
+end

app/views/issue_workflows/show.html.erb

@@ -0,0 +1,98 @@
+<div class="box" style="margin-bottom: 20px;">
+  <h3 style="margin-top: 0;">워크플로우 진행 상태</h3>
+
+  <p>
+    <strong>워크플로우:</strong> <%= @workflow_state.custom_workflow.name %>
+    <% if @workflow_state.custom_workflow.description.present? %>
+      <br/><small style="color: #666;"><%= @workflow_state.custom_workflow.description %></small>
+    <% end %>
+  </p>
+
+  <div style="display: flex; align-items: center; flex-wrap: wrap; gap: 5px; margin: 15px 0;">
+    <% @steps.each_with_index do |step, idx| %>
+      <% is_current = @current_step && @current_step.id == step.id %>
+      <% is_completed = @current_step && step.position < @current_step.position %>
+
+      <div style="
+        padding: 8px 15px;
+        border-radius: 4px;
+        font-size: 13px;
+        <% if is_current %>
+          background: #007bff;
+          color: white;
+          font-weight: bold;
+        <% elsif is_completed %>
+          background: #28a745;
+          color: white;
+        <% else %>
+          background: #e9ecef;
+          color: #666;
+        <% end %>
+      ">
+        <%= step.name %>
+        <% if step.is_start %>
+          <span style="font-size: 10px;">(시작)</span>
+        <% end %>
+        <% if step.is_end %>
+          <span style="font-size: 10px;">(종료)</span>
+        <% end %>
+      </div>
+
+      <% if idx < @steps.length - 1 %>
+        <span style="color: #999; font-size: 18px;">&rarr;</span>
+      <% end %>
+    <% end %>
+  </div>
+
+  <% if @current_step %>
+    <p>
+      <strong>현재 단계:</strong> <%= @current_step.name %>
+    </p>
+
+    <% if @current_step.workflow_step_assignees.any? %>
+      <p>
+        <strong>담당자:</strong>
+        <% @current_step.workflow_step_assignees.each do |assignee| %>
+          <span style="display: inline-block; background: #e9ecef; padding: 2px 8px; border-radius: 3px; margin: 2px; font-size: 12px;">
+            <%= assignee.assignee_name %>
+          </span>
+        <% end %>
+      </p>
+    <% end %>
+
+    <div style="margin-top: 15px;">
+      <% unless @current_step.is_end %>
+        <% if @workflow_state.can_proceed?(User.current) %>
+          <%= link_to '다음 단계로 &rarr;'.html_safe,
+              issue_workflow_next_step_path(@issue),
+              method: :post,
+              class: 'button button-positive',
+              data: { confirm: '다음 단계로 진행하시겠습니까?' } %>
+        <% else %>
+          <span class="button" style="opacity: 0.5; cursor: not-allowed;">다음 단계로 &rarr; (권한 없음)</span>
+        <% end %>
+      <% end %>
+
+      <% unless @current_step.is_start %>
+        <% if @workflow_state.can_go_back?(User.current) %>
+          <%= link_to '&larr; 이전 단계로'.html_safe,
+              issue_workflow_prev_step_path(@issue),
+              method: :post,
+              class: 'button',
+              data: { confirm: '이전 단계로 되돌리시겠습니까?' } %>
+        <% end %>
+      <% end %>
+    </div>
+  <% else %>
+    <p class="nodata">워크플로우 단계가 설정되지 않았습니다.</p>
+  <% end %>
+
+  <% if @workflow_state.started_at %>
+    <p style="margin-top: 15px; font-size: 11px; color: #999;">
+      시작일: <%= @workflow_state.started_at.strftime('%Y-%m-%d %H:%M') %>
+      <% if @workflow_state.completed_at %>
+        | 완료일: <%= @workflow_state.completed_at.strftime('%Y-%m-%d %H:%M') %>
+      <% end %>
+    </p>
+  <% end %>
+</div>

app/views/issues/_workflow_status.html.erb

@@ -0,0 +1,284 @@
+<%
+  workflow_state = IssueWorkflowState.find_by(issue_id: @issue.id)
+
+  unless workflow_state
+    # 이슈에 적용 가능한 워크플로우 찾기
+    workflow = CustomWorkflow.find_for_issue(@issue)
+    if workflow && workflow.start_step
+      workflow_state = IssueWorkflowState.create(
+        issue: @issue,
+        custom_workflow: workflow,
+        current_step: workflow.start_step,
+        started_at: Time.current
+      )
+    end
+  end
+%>
+
+<% if workflow_state && workflow_state.custom_workflow %>
+  <%
+    steps = workflow_state.custom_workflow.workflow_steps.ordered
+    current_step = workflow_state.current_step
+  %>
+  <div class="box" style="margin-top: 15px; margin-bottom: 15px; background: #f8f9fa;">
+    <h3 style="margin-top: 0; margin-bottom: 10px; font-size: 14px;">
+      <span style="color: #007bff;">&#9654;</span>
+      워크플로우: <%= workflow_state.custom_workflow.name %>
+    </h3>
+
+    <div style="display: flex; align-items: center; flex-wrap: wrap; gap: 5px; margin: 10px 0;">
+      <% steps.each_with_index do |step, idx| %>
+        <%
+          is_current = current_step && current_step.id == step.id
+          is_completed = current_step && step.position < current_step.position
+        %>
+
+        <div style="
+          padding: 6px 12px;
+          border-radius: 4px;
+          font-size: 12px;
+          <% if is_current %>
+            background: #007bff;
+            color: white;
+            font-weight: bold;
+          <% elsif is_completed %>
+            background: #28a745;
+            color: white;
+          <% else %>
+            background: #e9ecef;
+            color: #666;
+          <% end %>
+        ">
+          <%= step.name %>
+        </div>
+
+        <% if idx < steps.length - 1 %>
+          <span style="color: #999; font-size: 14px;">&rarr;</span>
+        <% end %>
+      <% end %>
+    </div>
+
+    <% if current_step %>
+      <div style="font-size: 12px; margin-top: 10px;">
+        <strong>현재 단계:</strong> <%= current_step.name %>
+
+        <% if current_step.workflow_step_assignees.any? %>
+          &nbsp;|&nbsp;
+          <strong>담당자:</strong>
+          <% current_step.workflow_step_assignees.each do |assignee| %>
+            <span style="background: #fff; border: 1px solid #ddd; padding: 1px 6px; border-radius: 3px; margin-left: 3px; font-size: 11px;">
+              <%= assignee.assignee_name %>
+            </span>
+          <% end %>
+        <% end %>
+
+        <% if current_step.is_start && @issue.editable?(User.current) %>
+          &nbsp;|&nbsp;
+          <a href="/issues/<%= @issue.id %>/edit" target="_blank" class="icon icon-edit" style="color: #007bff;">이슈 편집</a>
+        <% end %>
+      </div>
+
+      <%
+        # 다음 단계 정보 확인
+        next_step = current_step.next_step
+        next_step_has_group = next_step && next_step.workflow_step_assignees.where(assignee_type: ['role_group', 'department']).any?
+        next_step_group_members = next_step_has_group ? next_step.all_assignee_users : []
+      %>
+      <div style="margin-top: 12px;">
+        <% unless current_step.is_end %>
+          <% if workflow_state.can_proceed?(User.current) %>
+            <% if next_step_has_group && next_step_group_members.count > 1 %>
+              <a href="#" onclick="showNextStepModal(); return false;"
+                 class="button button-positive"
+                 style="font-size: 11px; padding: 4px 10px;">
+                다음 단계로 &rarr;
+              </a>
+            <% else %>
+              <%= link_to '다음 단계로 &rarr;'.html_safe,
+                  issue_workflow_next_step_path(@issue),
+                  method: :post,
+                  class: 'button button-positive',
+                  style: 'font-size: 11px; padding: 4px 10px;',
+                  data: { confirm: '다음 단계로 진행하시겠습니까?' } %>
+            <% end %>
+          <% else %>
+            <span class="button" style="font-size: 11px; padding: 4px 10px; opacity: 0.5; cursor: not-allowed;">
+              다음 단계로 (권한 없음)
+            </span>
+          <% end %>
+        <% else %>
+          <span style="color: #28a745; font-weight: bold; font-size: 12px;">&#10003; 워크플로우 완료</span>
+          <% if @issue.status_id != 5 && (User.current.admin? || current_step.assignee?(User.current)) %>
+            <%= link_to '완료 처리'.html_safe,
+                issue_workflow_complete_path(@issue),
+                method: :post,
+                class: 'button button-positive',
+                style: 'font-size: 11px; padding: 4px 10px; margin-left: 10px;',
+                data: { confirm: '이슈를 완료 처리하시겠습니까?' } %>
+          <% end %>
+        <% end %>
+
+        <% if !current_step.is_start && workflow_state.can_go_back?(User.current) %>
+          <%= link_to '&larr; 이전'.html_safe,
+              issue_workflow_prev_step_path(@issue),
+              method: :post,
+              class: 'button',
+              style: 'font-size: 11px; padding: 4px 10px; margin-left: 5px;',
+              data: { confirm: '이전 단계로 되돌리시겠습니까?' } %>
+        <% end %>
+
+        <% if !current_step.is_start && (User.current.admin? || current_step.assignee?(User.current)) %>
+          <a href="#" onclick="showRejectModal(); return false;"
+             class="button"
+             style="font-size: 11px; padding: 4px 10px; margin-left: 5px; background: #dc3545; color: white;">
+            반려
+          </a>
+        <% end %>
+
+        <% if User.current.admin? %>
+          <a href="#" onclick="showSkipModal(); return false;"
+             class="button"
+             style="font-size: 11px; padding: 4px 10px; margin-left: 5px; background: #6c757d; color: white;">
+            단계 이동
+          </a>
+        <% end %>
+      </div>
+
+      <% if current_step.due_days.present? %>
+        <%
+          step_started_at = workflow_state.updated_at
+          due_date = step_started_at + current_step.due_days.days
+          remaining = ((due_date - Time.current) / 1.day).to_i
+        %>
+        <div style="margin-top: 8px; font-size: 11px;">
+          <% if remaining < 0 %>
+            <span style="color: #dc3545; font-weight: bold;">
+              기한 초과 <%= remaining.abs %>일
+            </span>
+          <% elsif remaining == 0 %>
+            <span style="color: #f57c00; font-weight: bold;">
+              오늘 마감
+            </span>
+          <% else %>
+            <span style="color: #666;">
+              남은 기한: <%= remaining %>일 (<%= due_date.strftime('%Y-%m-%d') %>)
+            </span>
+          <% end %>
+        </div>
+      <% end %>
+    <% end %>
+  </div>
+
+  <!-- 반려 모달 -->
+  <div id="reject-modal" style="display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); z-index: 1000;">
+    <div style="background: white; width: 400px; margin: 100px auto; padding: 20px; border-radius: 8px;">
+      <h3 style="margin-top: 0; color: #dc3545;">반려</h3>
+      <p style="color: #666; font-size: 12px;">최초 단계(<%= steps.first&.name %>)로 반려됩니다.</p>
+      <%= form_tag issue_workflow_reject_path(@issue), method: :post do %>
+        <p>
+          <label><strong>반려 사유:</strong></label><br/>
+          <textarea name="reason" rows="4" style="width: 100%; padding: 5px;" placeholder="반려 사유를 입력하세요..." required></textarea>
+        </p>
+        <p style="text-align: right;">
+          <button type="button" onclick="closeRejectModal()" class="button">취소</button>
+          <button type="submit" class="button" style="background: #dc3545; color: white;">반려</button>
+        </p>
+      <% end %>
+    </div>
+  </div>
+
+  <!-- 다음 단계 담당자 선택 모달 -->
+  <% if next_step_has_group && next_step_group_members.count > 1 %>
+    <div id="next-step-modal" style="display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); z-index: 1000;">
+      <div style="background: white; width: 400px; margin: 100px auto; padding: 20px; border-radius: 8px;">
+        <h3 style="margin-top: 0; color: #007bff;">다음 단계: <%= next_step.name %></h3>
+        <p style="color: #666; font-size: 12px;">담당자를 선택하세요.</p>
+        <%= form_tag issue_workflow_next_step_path(@issue), method: :post do %>
+          <p>
+            <label><strong>담당자 선택:</strong></label><br/>
+            <% next_step_group_members.each do |member| %>
+              <label style="display: block; padding: 8px; margin: 5px 0; background: #f8f9fa; border-radius: 4px; cursor: pointer;">
+                <input type="radio" name="assignee_id" value="<%= member.id %>" required style="margin-right: 8px;">
+                <%= member.name %>
+              </label>
+            <% end %>
+          </p>
+          <p style="text-align: right;">
+            <button type="button" onclick="closeNextStepModal()" class="button">취소</button>
+            <button type="submit" class="button button-positive">다음 단계로</button>
+          </p>
+        <% end %>
+      </div>
+    </div>
+  <% end %>
+
+  <!-- 단계 이동 모달 (관리자용) -->
+  <% if User.current.admin? %>
+    <div id="skip-modal" style="display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); z-index: 1000;">
+      <div style="background: white; width: 400px; margin: 100px auto; padding: 20px; border-radius: 8px;">
+        <h3 style="margin-top: 0; color: #6c757d;">단계 이동 (관리자)</h3>
+        <p style="color: #666; font-size: 12px;">원하는 단계로 직접 이동합니다.</p>
+        <%= form_tag issue_workflow_skip_step_path(@issue), method: :post do %>
+          <p>
+            <label><strong>이동할 단계:</strong></label><br/>
+            <select name="target_step_id" style="width: 100%; padding: 5px;" required>
+              <option value="">-- 선택 --</option>
+              <% steps.each do |step| %>
+                <% next if current_step && step.id == current_step.id %>
+                <option value="<%= step.id %>">
+                  <%= step.name %>
+                  <% if step.is_start %>(시작)<% end %>
+                  <% if step.is_end %>(종료)<% end %>
+                </option>
+              <% end %>
+            </select>
+          </p>
+          <p>
+            <label><strong>사유 (선택):</strong></label><br/>
+            <textarea name="reason" rows="3" style="width: 100%; padding: 5px;" placeholder="이동 사유를 입력하세요..."></textarea>
+          </p>
+          <p style="text-align: right;">
+            <button type="button" onclick="closeSkipModal()" class="button">취소</button>
+            <button type="submit" class="button" style="background: #6c757d; color: white;">이동</button>
+          </p>
+        <% end %>
+      </div>
+    </div>
+  <% end %>
+
+  <script>
+    function showRejectModal() {
+      document.getElementById('reject-modal').style.display = 'block';
+    }
+    function closeRejectModal() {
+      document.getElementById('reject-modal').style.display = 'none';
+    }
+    document.getElementById('reject-modal').addEventListener('click', function(e) {
+      if (e.target === this) closeRejectModal();
+    });
+
+    <% if next_step_has_group && next_step_group_members.count > 1 %>
+    function showNextStepModal() {
+      document.getElementById('next-step-modal').style.display = 'block';
+    }
+    function closeNextStepModal() {
+      document.getElementById('next-step-modal').style.display = 'none';
+    }
+    document.getElementById('next-step-modal').addEventListener('click', function(e) {
+      if (e.target === this) closeNextStepModal();
+    });
+    <% end %>
+
+    <% if User.current.admin? %>
+    function showSkipModal() {
+      document.getElementById('skip-modal').style.display = 'block';
+    }
+    function closeSkipModal() {
+      document.getElementById('skip-modal').style.display = 'none';
+    }
+    document.getElementById('skip-modal').addEventListener('click', function(e) {
+      if (e.target === this) closeSkipModal();
+    });
+    <% end %>
+  </script>
+<% end %>

app/views/workflow_dashboard/index.html.erb

@@ -0,0 +1,136 @@
+<h2>워크플로우 대시보드</h2>
+
+<!-- 전체 통계 -->
+<div style="display: flex; gap: 20px; margin-bottom: 20px;">
+  <div class="box" style="flex: 1; text-align: center; background: #e3f2fd;">
+    <div style="font-size: 32px; font-weight: bold; color: #1976d2;"><%= @total_stats[:active_workflows] %></div>
+    <div style="color: #666;">활성 워크플로우</div>
+  </div>
+  <div class="box" style="flex: 1; text-align: center; background: #fff3e0;">
+    <div style="font-size: 32px; font-weight: bold; color: #f57c00;"><%= @total_stats[:issues_in_workflow] %></div>
+    <div style="color: #666;">진행 중인 이슈</div>
+  </div>
+  <div class="box" style="flex: 1; text-align: center; background: #e8f5e9;">
+    <div style="font-size: 32px; font-weight: bold; color: #388e3c;"><%= @total_stats[:completed_today] %></div>
+    <div style="color: #666;">오늘 완료</div>
+  </div>
+</div>
+
+<div style="display: flex; gap: 20px;">
+  <!-- 왼쪽: 프로젝트별 현황 -->
+  <div style="flex: 1;">
+    <div class="box">
+      <h3 style="margin-top: 0;">프로젝트별 현황</h3>
+      <% if @project_stats.any? %>
+        <table class="list" style="width: 100%;">
+          <thead>
+            <tr>
+              <th>프로젝트</th>
+              <th style="width: 80px; text-align: center;">진행 중</th>
+              <th style="width: 80px; text-align: center;">완료</th>
+              <th style="width: 60px;"></th>
+            </tr>
+          </thead>
+          <tbody>
+            <% @project_stats.each do |stat| %>
+              <tr>
+                <td><%= link_to stat[:project].name, project_path(stat[:project]) %></td>
+                <td style="text-align: center;">
+                  <span style="background: #fff3e0; padding: 2px 8px; border-radius: 10px; color: #f57c00; font-weight: bold;">
+                    <%= stat[:in_progress] %>
+                  </span>
+                </td>
+                <td style="text-align: center;">
+                  <span style="background: #e8f5e9; padding: 2px 8px; border-radius: 10px; color: #388e3c;">
+                    <%= stat[:completed] %>
+                  </span>
+                </td>
+                <td>
+                  <%= link_to '상세', workflow_dashboard_project_path(stat[:project]), class: 'button', style: 'padding: 2px 8px; font-size: 11px;' %>
+                </td>
+              </tr>
+            <% end %>
+          </tbody>
+        </table>
+      <% else %>
+        <p class="nodata">워크플로우가 적용된 이슈가 없습니다.</p>
+      <% end %>
+    </div>
+  </div>
+
+  <!-- 오른쪽: 내 담당 이슈 -->
+  <div style="flex: 1;">
+    <div class="box">
+      <h3 style="margin-top: 0;">내 담당 이슈</h3>
+      <% if @my_issues.any? %>
+        <table class="list" style="width: 100%;">
+          <thead>
+            <tr>
+              <th>이슈</th>
+              <th>현재 단계</th>
+              <th style="width: 80px;"></th>
+            </tr>
+          </thead>
+          <tbody>
+            <% @my_issues.each do |state| %>
+              <tr>
+                <td>
+                  <%= link_to "##{state.issue.id}", issue_path(state.issue) %>
+                  <%= truncate(state.issue.subject, length: 30) %>
+                </td>
+                <td>
+                  <span style="background: #007bff; color: white; padding: 2px 6px; border-radius: 3px; font-size: 11px;">
+                    <%= state.current_step&.name %>
+                  </span>
+                </td>
+                <td>
+                  <%= link_to '처리', issue_path(state.issue), class: 'button button-positive', style: 'padding: 2px 8px; font-size: 11px;' %>
+                </td>
+              </tr>
+            <% end %>
+          </tbody>
+        </table>
+      <% else %>
+        <p class="nodata">담당 이슈가 없습니다.</p>
+      <% end %>
+    </div>
+
+    <!-- 지연된 이슈 -->
+    <% if @overdue_issues.any? %>
+      <div class="box" style="margin-top: 15px; background: #ffebee;">
+        <h3 style="margin-top: 0; color: #c62828;">지연된 이슈</h3>
+        <table class="list" style="width: 100%;">
+          <thead>
+            <tr>
+              <th>이슈</th>
+              <th>현재 단계</th>
+              <th>지연일</th>
+            </tr>
+          </thead>
+          <tbody>
+            <% @overdue_issues.each do |state| %>
+              <%
+                step_started_at = state.updated_at
+                due_date = step_started_at + state.current_step.due_days.days
+                overdue_days = ((Time.current - due_date) / 1.day).to_i
+              %>
+              <tr>
+                <td>
+                  <%= link_to "##{state.issue.id}", issue_path(state.issue) %>
+                  <%= truncate(state.issue.subject, length: 25) %>
+                </td>
+                <td><%= state.current_step&.name %></td>
+                <td style="color: #c62828; font-weight: bold;"><%= overdue_days %>일</td>
+              </tr>
+            <% end %>
+          </tbody>
+        </table>
+      </div>
+    <% end %>
+  </div>
+</div>
+
+<hr />
+<p>
+  <%= link_to '워크플로우 관리', '/custom_workflows', class: 'icon icon-settings' %>
+</p>

app/views/workflow_dashboard/project.html.erb

@@ -0,0 +1,99 @@
+<h2>워크플로우 현황: <%= @project.name %></h2>
+
+<p>
+  <%= link_to '&larr; 대시보드로'.html_safe, workflow_dashboard_path, class: 'icon icon-back' %>
+</p>
+
+<!-- 단계별 현황 -->
+<div class="box">
+  <h3 style="margin-top: 0;">단계별 이슈 현황</h3>
+
+  <% if @steps_summary.any? %>
+    <div style="display: flex; flex-wrap: wrap; gap: 15px;">
+      <% @steps_summary.each do |step_name, states| %>
+        <div style="flex: 1; min-width: 250px; border: 1px solid #ddd; border-radius: 8px; padding: 15px; background: #fafafa;">
+          <div style="display: flex; justify-content: space-between; align-items: center; margin-bottom: 10px;">
+            <strong style="font-size: 14px;"><%= step_name %></strong>
+            <span style="background: #007bff; color: white; padding: 2px 10px; border-radius: 12px; font-size: 12px;">
+              <%= states.count %>건
+            </span>
+          </div>
+
+          <div style="max-height: 200px; overflow-y: auto;">
+            <% states.each do |state| %>
+              <div style="background: white; padding: 8px; margin-bottom: 5px; border-radius: 4px; border-left: 3px solid #007bff;">
+                <div>
+                  <%= link_to "##{state.issue.id}", issue_path(state.issue), style: 'font-weight: bold;' %>
+                  <%= truncate(state.issue.subject, length: 30) %>
+                </div>
+                <div style="font-size: 11px; color: #666; margin-top: 3px;">
+                  담당: <%= state.issue.assigned_to&.name || '-' %>
+                  <% if state.current_step&.due_days.present? %>
+                    <%
+                      step_started_at = state.updated_at
+                      due_date = step_started_at + state.current_step.due_days.days
+                      remaining = ((due_date - Time.current) / 1.day).to_i
+                    %>
+                    <% if remaining < 0 %>
+                      | <span style="color: #dc3545; font-weight: bold;">지연 <%= remaining.abs %>일</span>
+                    <% elsif remaining == 0 %>
+                      | <span style="color: #f57c00; font-weight: bold;">오늘 마감</span>
+                    <% else %>
+                      | 남은 기한: <%= remaining %>일
+                    <% end %>
+                  <% end %>
+                </div>
+              </div>
+            <% end %>
+          </div>
+        </div>
+      <% end %>
+    </div>
+  <% else %>
+    <p class="nodata">진행 중인 워크플로우 이슈가 없습니다.</p>
+  <% end %>
+</div>
+
+<!-- 전체 이슈 목록 -->
+<div class="box" style="margin-top: 20px;">
+  <h3 style="margin-top: 0;">전체 워크플로우 이슈</h3>
+
+  <% if @workflow_states.any? %>
+    <table class="list">
+      <thead>
+        <tr>
+          <th style="width: 60px;">#</th>
+          <th>제목</th>
+          <th style="width: 120px;">워크플로우</th>
+          <th style="width: 100px;">현재 단계</th>
+          <th style="width: 100px;">담당자</th>
+          <th style="width: 80px;">상태</th>
+          <th style="width: 100px;">갱신일</th>
+        </tr>
+      </thead>
+      <tbody>
+        <% @workflow_states.each do |state| %>
+          <tr class="<%= state.completed_at ? 'even' : '' %>">
+            <td><%= link_to "##{state.issue.id}", issue_path(state.issue) %></td>
+            <td><%= link_to state.issue.subject, issue_path(state.issue) %></td>
+            <td><%= state.custom_workflow&.name %></td>
+            <td>
+              <% if state.completed_at %>
+                <span style="background: #28a745; color: white; padding: 2px 6px; border-radius: 3px; font-size: 11px;">완료</span>
+              <% else %>
+                <span style="background: #007bff; color: white; padding: 2px 6px; border-radius: 3px; font-size: 11px;">
+                  <%= state.current_step&.name %>
+                </span>
+              <% end %>
+            </td>
+            <td><%= state.issue.assigned_to&.name || '-' %></td>
+            <td><%= state.issue.status&.name %></td>
+            <td><%= format_time(state.updated_at) %></td>
+          </tr>
+        <% end %>
+      </tbody>
+    </table>
+  <% else %>
+    <p class="nodata">워크플로우 이슈가 없습니다.</p>
+  <% end %>
+</div>

app/views/workflows/_form.html.erb

@@ -0,0 +1,53 @@
+<%= form_for @workflow, url: @workflow.new_record? ? '/custom_workflows' : custom_workflow_path(@workflow), method: @workflow.new_record? ? :post : :patch, html: { class: 'tabular' } do |f| %>
+  <% if @workflow.errors.any? %>
+    <div id="errorExplanation">
+      <ul>
+        <% @workflow.errors.full_messages.each do |msg| %>
+          <li><%= msg %></li>
+        <% end %>
+      </ul>
+    </div>
+  <% end %>
+
+  <p>
+    <label for="custom_workflow_name">워크플로우명 <span class="required">*</span></label>
+    <%= f.text_field :name, size: 50, required: true %>
+  </p>
+
+  <p>
+    <label for="custom_workflow_description">설명</label>
+    <%= f.text_area :description, rows: 3, cols: 60 %>
+  </p>
+
+  <p>
+    <label for="custom_workflow_project_id">프로젝트</label>
+    <%= f.collection_select :project_id, Project.all.order(:name), :id, :name,
+        { include_blank: '-- 모든 프로젝트 --' }, { style: 'width: 300px;' } %>
+    <br/>
+    <em class="info">특정 프로젝트에서만 사용하려면 선택하세요.</em>
+  </p>
+
+  <p>
+    <label for="custom_workflow_tracker_id">트래커</label>
+    <%= f.collection_select :tracker_id, Tracker.all.order(:position), :id, :name,
+        { include_blank: '-- 모든 트래커 --' }, { style: 'width: 300px;' } %>
+    <br/>
+    <em class="info">특정 트래커에서만 사용하려면 선택하세요.</em>
+  </p>
+
+  <p>
+    <label for="custom_workflow_is_default">기본 워크플로우</label>
+    <%= f.check_box :is_default %>
+    <em class="info">프로젝트/트래커가 일치하는 이슈에 자동 적용됩니다.</em>
+  </p>
+
+  <p>
+    <label for="custom_workflow_active">활성화</label>
+    <%= f.check_box :active %>
+  </p>
+
+  <p>
+    <%= submit_tag @workflow.new_record? ? '생성' : '저장', class: 'button-positive' %>
+    <%= link_to '취소', '/custom_workflows', class: 'button' %>
+  </p>
+<% end %>

app/views/workflows/edit.html.erb

@@ -0,0 +1,3 @@
+<h2>워크플로우 수정: <%= @workflow.name %></h2>
+
+<%= render partial: 'form' %>

app/views/workflows/index.html.erb

@@ -0,0 +1,50 @@
+<h2>워크플로우 관리</h2>
+
+<p>
+  <%= link_to '새 워크플로우', new_custom_workflow_path, class: 'icon icon-add' %>
+</p>
+
+<% if @workflows.any? %>
+<table class="list">
+  <thead>
+    <tr>
+      <th>워크플로우명</th>
+      <th>프로젝트</th>
+      <th>트래커</th>
+      <th>단계 수</th>
+      <th>상태</th>
+      <th>작업</th>
+    </tr>
+  </thead>
+  <tbody>
+    <% @workflows.each do |wf| %>
+    <tr>
+      <td>
+        <strong><%= link_to wf.name, custom_workflow_path(wf) %></strong>
+        <% if wf.is_default %>
+          <span style="background: #28a745; color: white; padding: 1px 6px; border-radius: 3px; font-size: 10px; margin-left: 5px;">기본</span>
+        <% end %>
+      </td>
+      <td><%= wf.project&.name || '(모든 프로젝트)' %></td>
+      <td><%= wf.tracker&.name || '(모든 트래커)' %></td>
+      <td><%= wf.step_count %>개</td>
+      <td>
+        <% if wf.active %>
+          <span style="color: green;">활성</span>
+        <% else %>
+          <span style="color: #999;">비활성</span>
+        <% end %>
+      </td>
+      <td>
+        <%= link_to '관리', custom_workflow_path(wf), class: 'icon icon-edit' %>
+        <%= link_to '수정', edit_custom_workflow_path(wf), class: 'icon icon-edit' %>
+        <%= link_to '삭제', destroy_custom_workflow_path(wf), method: :delete,
+            data: { confirm: '정말 삭제하시겠습니까?' }, class: 'icon icon-del' %>
+      </td>
+    </tr>
+    <% end %>
+  </tbody>
+</table>
+<% else %>
+<p class="nodata">등록된 워크플로우가 없습니다.</p>
+<% end %>

app/views/workflows/new.html.erb

@@ -0,0 +1,3 @@
+<h2>새 워크플로우</h2>
+
+<%= render partial: 'form' %>

app/views/workflows/show.html.erb

@@ -0,0 +1,228 @@
+<h2><%= @workflow.name %></h2>
+
+<% if @workflow.description.present? %>
+<p><%= @workflow.description %></p>
+<% end %>
+
+<p>
+  <strong>프로젝트:</strong> <%= @workflow.project&.name || '모든 프로젝트' %> |
+  <strong>트래커:</strong> <%= @workflow.tracker&.name || '모든 트래커' %> |
+  <strong>상태:</strong> <%= @workflow.active ? '활성' : '비활성' %>
+  <% if @workflow.is_default %>
+    | <strong>기본 워크플로우</strong>
+  <% end %>
+</p>
+
+<hr />
+
+<h3>워크플로우 단계</h3>
+
+<div class="box" style="margin-bottom: 20px;">
+  <%= form_tag custom_workflow_steps_path(@workflow), method: :post, class: 'tabular' do %>
+    <p>
+      <label>단계명:</label>
+      <%= text_field_tag 'workflow_step[name]', '', size: 20, required: true, placeholder: '예: 개발, QA...' %>
+      &nbsp;
+      <label>이슈 상태:</label>
+      <%= select_tag 'workflow_step[issue_status_id]',
+          options_from_collection_for_select(IssueStatus.sorted, :id, :name),
+          include_blank: '-- 선택 --', style: 'width: 150px;' %>
+      &nbsp;
+      <%= submit_tag '단계 추가', class: 'button-positive' %>
+    </p>
+  <% end %>
+</div>
+
+<% if @steps.any? %>
+<table class="list">
+  <thead>
+    <tr>
+      <th style="width: 50px;">순서</th>
+      <th>단계명</th>
+      <th>이슈 상태</th>
+      <th style="width: 80px;">기한(일)</th>
+      <th>담당자</th>
+      <th style="width: 200px;">작업</th>
+    </tr>
+  </thead>
+  <tbody>
+    <% @steps.each_with_index do |step, idx| %>
+    <tr>
+      <td style="text-align: center;">
+        <%= idx + 1 %>
+        <% if step.is_start %>
+          <br/><span style="background: #007bff; color: white; padding: 1px 4px; border-radius: 2px; font-size: 9px;">시작</span>
+        <% end %>
+        <% if step.is_end %>
+          <br/><span style="background: #dc3545; color: white; padding: 1px 4px; border-radius: 2px; font-size: 9px;">종료</span>
+        <% end %>
+      </td>
+      <td>
+        <strong><%= step.name %></strong>
+        <% if step.description.present? %>
+          <br/><small style="color: #666;"><%= step.description %></small>
+        <% end %>
+      </td>
+      <td>
+        <%= form_tag custom_workflow_step_path(@workflow, step), method: :patch, style: 'display: inline;' do %>
+          <%= select_tag 'workflow_step[issue_status_id]',
+              options_from_collection_for_select(IssueStatus.sorted, :id, :name, step.issue_status_id),
+              include_blank: '-- 선택 --',
+              style: 'font-size: 11px; padding: 2px;',
+              onchange: 'this.form.submit();' %>
+        <% end %>
+      </td>
+      <td>
+        <%= form_tag custom_workflow_step_path(@workflow, step), method: :patch, style: 'display: inline;' do %>
+          <%= number_field_tag 'workflow_step[due_days]', step.due_days,
+              min: 1, max: 365,
+              style: 'width: 50px; font-size: 11px; padding: 2px;',
+              placeholder: '-',
+              onchange: 'this.form.submit();' %>
+        <% end %>
+      </td>
+      <td>
+        <% if step.workflow_step_assignees.any? %>
+          <% step.workflow_step_assignees.each do |assignee| %>
+            <span style="display: inline-block; background: #e9ecef; padding: 2px 8px; border-radius: 3px; margin: 2px; font-size: 12px;">
+              <%= assignee.assignee_name %>
+              <%= link_to '×', step_assignee_path(step_id: step.id, id: assignee.id),
+                  method: :delete, style: 'color: #dc3545; margin-left: 5px;', title: '제거' %>
+            </span>
+          <% end %>
+        <% else %>
+          <em style="color: #999;">담당자 없음</em>
+        <% end %>
+        <br/>
+        <a href="#" onclick="showAssigneeModal(<%= step.id %>); return false;" style="font-size: 11px;">+ 담당자 추가</a>
+      </td>
+      <td>
+        <%= link_to '▲', move_custom_workflow_step_path(@workflow, step, direction: 'up'), method: :patch, class: 'icon', title: '위로' unless idx == 0 %>
+        <%= link_to '▼', move_custom_workflow_step_path(@workflow, step, direction: 'down'), method: :patch, class: 'icon', title: '아래로' unless idx == @steps.length - 1 %>
+        |
+        <%= link_to '삭제', custom_workflow_step_path(@workflow, step), method: :delete,
+            data: { confirm: '이 단계를 삭제하시겠습니까?' }, class: 'icon icon-del' %>
+      </td>
+    </tr>
+    <% end %>
+  </tbody>
+</table>
+<% else %>
+<p class="nodata">단계가 없습니다. 위에서 단계를 추가하세요.</p>
+<% end %>
+
+<hr />
+
+<p>
+  <%= link_to '목록으로', '/custom_workflows', class: 'icon icon-back' %>
+  <%= link_to '수정', edit_custom_workflow_path(@workflow), class: 'icon icon-edit' %>
+</p>
+
+<!-- 담당자 추가 모달 -->
+<div id="assignee-modal" style="display: none; position: fixed; top: 0; left: 0; width: 100%; height: 100%; background: rgba(0,0,0,0.5); z-index: 1000;">
+  <div style="background: white; width: 500px; margin: 100px auto; padding: 20px; border-radius: 8px; max-height: 80vh; overflow-y: auto;">
+    <h3>담당자 추가</h3>
+    <input type="hidden" id="modal-step-id" />
+
+    <div style="margin-bottom: 15px;">
+      <label><strong>담당자 유형:</strong></label><br/>
+      <select id="assignee-type" onchange="loadAssigneeOptions()" style="width: 100%; padding: 5px;">
+        <option value="user">사용자</option>
+        <option value="role_group">역할 그룹</option>
+        <option value="department">부서</option>
+      </select>
+    </div>
+
+    <div style="margin-bottom: 15px;">
+      <label><strong>검색:</strong></label><br/>
+      <input type="text" id="assignee-search" placeholder="검색어 입력..." style="width: 100%; padding: 5px;" />
+    </div>
+
+    <div id="assignee-list" style="max-height: 300px; overflow-y: auto; border: 1px solid #ddd; padding: 10px;">
+      <p style="color: #999;">유형을 선택하고 검색하세요.</p>
+    </div>
+
+    <div style="margin-top: 15px; text-align: right;">
+      <button onclick="closeAssigneeModal()" class="button">닫기</button>
+    </div>
+  </div>
+</div>
+
+<%= javascript_tag do %>
+var currentStepId = null;
+var searchTimeout = null;
+
+function showAssigneeModal(stepId) {
+  currentStepId = stepId;
+  document.getElementById('modal-step-id').value = stepId;
+  document.getElementById('assignee-modal').style.display = 'block';
+  document.getElementById('assignee-search').value = '';
+  loadAssigneeOptions();
+}
+
+function closeAssigneeModal() {
+  document.getElementById('assignee-modal').style.display = 'none';
+  currentStepId = null;
+}
+
+function loadAssigneeOptions() {
+  var type = document.getElementById('assignee-type').value;
+  var query = document.getElementById('assignee-search').value;
+  var listDiv = document.getElementById('assignee-list');
+
+  var url = '';
+  if (type === 'user') {
+    url = '<%= search_users_workflows_path %>';
+  } else if (type === 'role_group') {
+    url = '<%= search_role_groups_workflows_path %>';
+  } else if (type === 'department') {
+    url = '<%= search_departments_workflows_path %>';
+  }
+
+  $.ajax({
+    url: url,
+    data: { q: query },
+    dataType: 'json',
+    success: function(data) {
+      var html = '';
+      if (data.length === 0) {
+        html = '<p style="color: #999;">결과 없음</p>';
+      } else {
+        html = '<table style="width: 100%;"><tbody>';
+        data.forEach(function(item) {
+          var label = item.name;
+          if (item.count !== undefined) {
+            label += ' (' + item.count + '명)';
+          }
+          if (item.login) {
+            label += ' - ' + item.login;
+          }
+          html += '<tr>';
+          html += '<td>' + label + '</td>';
+          html += '<td style="text-align: right;">';
+          html += '<form action="/workflow_steps/' + currentStepId + '/assignees" method="post" style="display:inline;">';
+          html += '<input type="hidden" name="authenticity_token" value="' + $('meta[name="csrf-token"]').attr('content') + '">';
+          html += '<input type="hidden" name="assignee_type" value="' + type + '">';
+          html += '<input type="hidden" name="assignee_id" value="' + item.id + '">';
+          html += '<input type="submit" value="추가" class="button-positive" style="padding: 2px 8px; font-size: 11px;">';
+          html += '</form>';
+          html += '</td>';
+          html += '</tr>';
+        });
+        html += '</tbody></table>';
+      }
+      listDiv.innerHTML = html;
+    }
+  });
+}
+
+$('#assignee-search').on('keyup', function() {
+  if (searchTimeout) clearTimeout(searchTimeout);
+  searchTimeout = setTimeout(loadAssigneeOptions, 300);
+});
+
+// 모달 외부 클릭시 닫기
+document.getElementById('assignee-modal').addEventListener('click', function(e) {
+  if (e.target === this) closeAssigneeModal();
+});
+<% end %>

config/routes.rb

@@ -0,0 +1,39 @@
+Rails.application.routes.draw do
+  # 워크플로우 대시보드
+  get 'workflow_dashboard', to: 'workflow_dashboard#index', as: 'workflow_dashboard'
+  get 'workflow_dashboard/project/:project_id', to: 'workflow_dashboard#project', as: 'workflow_dashboard_project'
+
+  # 커스텀 워크플로우 관리 (Redmine 기본 /workflows와 충돌 방지)
+  get 'custom_workflows', to: 'workflows#index'
+  get 'custom_workflows/new', to: 'workflows#new', as: 'new_custom_workflow'
+  post 'custom_workflows', to: 'workflows#create'
+
+  # 검색 API (반드시 :id 라우트 이전에 위치)
+  get 'custom_workflows/search/users', to: 'workflows#search_users', as: 'search_users_workflows'
+  get 'custom_workflows/search/role_groups', to: 'workflows#search_role_groups', as: 'search_role_groups_workflows'
+  get 'custom_workflows/search/departments', to: 'workflows#search_departments', as: 'search_departments_workflows'
+
+  # 워크플로우 CRUD
+  get 'custom_workflows/:id', to: 'workflows#show', as: 'custom_workflow'
+  get 'custom_workflows/:id/edit', to: 'workflows#edit', as: 'edit_custom_workflow'
+  patch 'custom_workflows/:id', to: 'workflows#update', as: 'update_custom_workflow'
+  delete 'custom_workflows/:id', to: 'workflows#destroy', as: 'destroy_custom_workflow'
+
+  # 워크플로우 단계 관리
+  post 'custom_workflows/:workflow_id/steps', to: 'workflow_steps#create', as: 'custom_workflow_steps'
+  patch 'custom_workflows/:workflow_id/steps/:id', to: 'workflow_steps#update', as: 'custom_workflow_step'
+  delete 'custom_workflows/:workflow_id/steps/:id', to: 'workflow_steps#destroy'
+  patch 'custom_workflows/:workflow_id/steps/:id/move', to: 'workflow_steps#move', as: 'move_custom_workflow_step'
+
+  # 단계별 담당자 관리
+  post 'workflow_steps/:step_id/assignees', to: 'workflow_steps#add_assignee', as: 'step_assignees'
+  delete 'workflow_steps/:step_id/assignees/:id', to: 'workflow_steps#remove_assignee', as: 'step_assignee'
+
+  # 티켓 워크플로우 액션
+  post 'issues/:issue_id/workflow/next', to: 'issue_workflows#next_step', as: 'issue_workflow_next_step'
+  post 'issues/:issue_id/workflow/prev', to: 'issue_workflows#prev_step', as: 'issue_workflow_prev_step'
+  post 'issues/:issue_id/workflow/complete', to: 'issue_workflows#complete', as: 'issue_workflow_complete'
+  post 'issues/:issue_id/workflow/reject', to: 'issue_workflows#reject', as: 'issue_workflow_reject'
+  post 'issues/:issue_id/workflow/skip', to: 'issue_workflows#skip_step', as: 'issue_workflow_skip_step'
+  get 'issues/:issue_id/workflow', to: 'issue_workflows#show', as: 'issue_workflow'
+end

db/migrate/001_create_custom_workflows.rb

@@ -0,0 +1,17 @@
+class CreateCustomWorkflows < ActiveRecord::Migration[6.1]
+  def change
+    create_table :custom_workflows do |t|
+      t.string :name, null: false
+      t.text :description
+      t.integer :tracker_id
+      t.integer :project_id
+      t.boolean :is_default, default: false
+      t.boolean :active, default: true
+      t.timestamps
+    end
+
+    add_index :custom_workflows, :tracker_id
+    add_index :custom_workflows, :project_id
+    add_index :custom_workflows, :is_default
+  end
+end

db/migrate/002_create_workflow_steps.rb

@@ -0,0 +1,19 @@
+class CreateWorkflowSteps < ActiveRecord::Migration[6.1]
+  def change
+    create_table :workflow_steps do |t|
+      t.bigint :custom_workflow_id, null: false
+      t.string :name, null: false
+      t.text :description
+      t.integer :position, default: 0
+      t.integer :issue_status_id
+      t.boolean :is_start, default: false
+      t.boolean :is_end, default: false
+      t.timestamps
+    end
+
+    add_index :workflow_steps, :custom_workflow_id
+    add_index :workflow_steps, :position
+    add_index :workflow_steps, :issue_status_id
+    add_foreign_key :workflow_steps, :custom_workflows
+  end
+end

db/migrate/003_create_workflow_step_assignees.rb

@@ -0,0 +1,14 @@
+class CreateWorkflowStepAssignees < ActiveRecord::Migration[6.1]
+  def change
+    create_table :workflow_step_assignees do |t|
+      t.bigint :workflow_step_id, null: false
+      t.string :assignee_type, null: false  # 'user', 'role_group', 'department'
+      t.integer :assignee_id, null: false   # user_id, role_group_id, or department_id
+      t.timestamps
+    end
+
+    add_index :workflow_step_assignees, :workflow_step_id
+    add_index :workflow_step_assignees, [:assignee_type, :assignee_id]
+    add_foreign_key :workflow_step_assignees, :workflow_steps
+  end
+end

db/migrate/004_create_issue_workflow_states.rb

@@ -0,0 +1,20 @@
+class CreateIssueWorkflowStates < ActiveRecord::Migration[6.1]
+  def change
+    create_table :issue_workflow_states do |t|
+      t.integer :issue_id, null: false
+      t.bigint :custom_workflow_id, null: false
+      t.bigint :current_step_id
+      t.integer :completed_by_id
+      t.datetime :started_at
+      t.datetime :completed_at
+      t.timestamps
+    end
+
+    add_index :issue_workflow_states, :issue_id, unique: true
+    add_index :issue_workflow_states, :custom_workflow_id
+    add_index :issue_workflow_states, :current_step_id
+    add_foreign_key :issue_workflow_states, :issues
+    add_foreign_key :issue_workflow_states, :custom_workflows
+    add_foreign_key :issue_workflow_states, :workflow_steps, column: :current_step_id
+  end
+end

db/migrate/005_add_due_days_to_workflow_steps.rb

@@ -0,0 +1,5 @@
+class AddDueDaysToWorkflowSteps < ActiveRecord::Migration[6.1]
+  def change
+    add_column :workflow_steps, :due_days, :integer, default: nil
+  end
+end

init.rb

@@ -0,0 +1,16 @@
+require_relative 'lib/workflow_engine/hooks'
+
+Redmine::Plugin.register :workflow_engine do
+  name '워크플로우 엔진'
+  author 'Admin'
+  description 'Custom workflow engine for issue tracking with step-by-step assignments'
+  version '1.0.0'
+
+  menu :admin_menu, :custom_workflows, '/custom_workflows',
+       caption: '커스텀 워크플로우', html: { class: 'icon icon-workflows' }
+
+  project_module :workflow_engine do
+    permission :view_workflow, { workflows: [:show] }
+    permission :manage_workflow, { workflows: [:index, :new, :create, :edit, :update, :destroy] }
+  end
+end

lib/workflow_engine/hooks.rb

@@ -0,0 +1,6 @@
+module WorkflowEngine
+  class Hooks < Redmine::Hook::ViewListener
+    # 이슈 상세 페이지 상단에 워크플로우 진행 상태 표시
+    render_on :view_issues_show_description_bottom, partial: 'issues/workflow_status'
+  end
+end