Add project workflow feature so users can define how to execute steps when project related events fired

models/project/column.go

@@ -213,6 +213,18 @@ func GetColumn(ctx context.Context, columnID int64) (*Column, error) {
 	return column, nil
 }
 
+func GetColumnByProjectIDAndColumnName(ctx context.Context, projectID int64, columnName string) (*Column, error) {
+	board := new(Column)
+	has, err := db.GetEngine(ctx).Where("project_id=? AND title=?", projectID, columnName).Get(board)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrProjectColumnNotExist{ProjectID: projectID, Name: columnName}
+	}
+
+	return board, nil
+}
+
 // UpdateColumn updates a project column
 func UpdateColumn(ctx context.Context, column *Column) error {
 	var fieldToUpdate []string

models/project/issue.go

@@ -33,6 +33,19 @@ func deleteProjectIssuesByProjectID(ctx context.Context, projectID int64) error
 	return err
 }
 
+func AddIssueToColumn(ctx context.Context, issueID int64, newColumn *Column) error {
+	return db.Insert(ctx, &ProjectIssue{
+		IssueID:         issueID,
+		ProjectID:       newColumn.ProjectID,
+		ProjectColumnID: newColumn.ID,
+	})
+}
+
+func MoveIssueToAnotherColumn(ctx context.Context, issueID int64, newColumn *Column) error {
+	_, err := db.GetEngine(ctx).Exec("UPDATE `project_issue` SET project_board_id=? WHERE issue_id=?", newColumn.ID, issueID)
+	return err
+}
+
 func (c *Column) moveIssuesToAnotherColumn(ctx context.Context, newColumn *Column) error {
 	if c.ProjectID != newColumn.ProjectID {
 		return errors.New("columns have to be in the same project")

models/project/project.go

@@ -46,6 +46,7 @@ const (
 type ErrProjectNotExist struct {
 	ID     int64
 	RepoID int64
+	Name   string
 }
 
 // IsErrProjectNotExist checks if an error is a ErrProjectNotExist
@@ -55,6 +56,9 @@ func IsErrProjectNotExist(err error) bool {
 }
 
 func (err ErrProjectNotExist) Error() string {
+	if err.RepoID > 0 && len(err.Name) > 0 {
+		return fmt.Sprintf("projects does not exist [repo_id: %d, name: %s]", err.RepoID, err.Name)
+	}
 	return fmt.Sprintf("projects does not exist [id: %d]", err.ID)
 }
 
@@ -64,7 +68,9 @@ func (err ErrProjectNotExist) Unwrap() error {
 
 // ErrProjectColumnNotExist represents a "ErrProjectColumnNotExist" kind of error.
 type ErrProjectColumnNotExist struct {
-	ColumnID int64
+	ColumnID  int64
+	ProjectID int64
+	Name      string
 }
 
 // IsErrProjectColumnNotExist checks if an error is a ErrProjectColumnNotExist
@@ -74,6 +80,9 @@ func IsErrProjectColumnNotExist(err error) bool {
 }
 
 func (err ErrProjectColumnNotExist) Error() string {
+	if err.ProjectID > 0 && len(err.Name) > 0 {
+		return fmt.Sprintf("project column does not exist [project_id: %d, name: %s]", err.ProjectID, err.Name)
+	}
 	return fmt.Sprintf("project column does not exist [id: %d]", err.ColumnID)
 }
 
@@ -302,6 +311,19 @@ func GetProjectByID(ctx context.Context, id int64) (*Project, error) {
 	return p, nil
 }
 
+// GetProjectByName returns the projects in a repository
+func GetProjectByName(ctx context.Context, repoID int64, name string) (*Project, error) {
+	p := new(Project)
+	has, err := db.GetEngine(ctx).Where("repo_id=? AND title=?", repoID, name).Get(p)
+	if err != nil {
+		return nil, err
+	} else if !has {
+		return nil, ErrProjectNotExist{RepoID: repoID, Name: name}
+	}
+
+	return p, nil
+}
+
 // GetProjectForRepoByID returns the projects in a repository
 func GetProjectForRepoByID(ctx context.Context, repoID, id int64) (*Project, error) {
 	p := new(Project)

models/project/workflows.go

@@ -0,0 +1,181 @@
+// Copyright 2025 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package project
+
+import (
+	"context"
+	"fmt"
+
+	"code.gitea.io/gitea/models/db"
+	"code.gitea.io/gitea/modules/log"
+	"code.gitea.io/gitea/modules/timeutil"
+	"code.gitea.io/gitea/modules/util"
+)
+
+type WorkflowEvent string
+
+const (
+	WorkflowEventItemAddedToProject   WorkflowEvent = "item_added_to_project"
+	WorkflowEventItemReopened         WorkflowEvent = "item_reopened"
+	WorkflowEventItemClosed           WorkflowEvent = "item_closed"
+	WorkflowEventCodeChangesRequested WorkflowEvent = "code_changes_requested"
+	WorkflowEventCodeReviewApproved   WorkflowEvent = "code_review_approved"
+	WorkflowEventPullRequestMerged    WorkflowEvent = "pull_request_merged"
+	WorkflowEventAutoArchiveItems     WorkflowEvent = "auto_archive_items"
+	WorkflowEventAutoAddToProject     WorkflowEvent = "auto_add_to_project"
+	WorkflowEventAutoCloseIssue       WorkflowEvent = "auto_close_issue"
+)
+
+var workflowEvents = []WorkflowEvent{
+	WorkflowEventItemAddedToProject,
+	WorkflowEventItemReopened,
+	WorkflowEventItemClosed,
+	WorkflowEventCodeChangesRequested,
+	WorkflowEventCodeReviewApproved,
+	WorkflowEventPullRequestMerged,
+	WorkflowEventAutoArchiveItems,
+	WorkflowEventAutoAddToProject,
+	WorkflowEventAutoCloseIssue,
+}
+
+func GetWorkflowEvents() []WorkflowEvent {
+	return workflowEvents
+}
+
+func (we WorkflowEvent) ToString() string {
+	switch we {
+	case WorkflowEventItemAddedToProject:
+		return "Item added to project"
+	case WorkflowEventItemReopened:
+		return "Item reopened"
+	case WorkflowEventItemClosed:
+		return "Item closed"
+	case WorkflowEventCodeChangesRequested:
+		return "Code changes requested"
+	case WorkflowEventCodeReviewApproved:
+		return "Code review approved"
+	case WorkflowEventPullRequestMerged:
+		return "Pull request merged"
+	case WorkflowEventAutoArchiveItems:
+		return "Auto archive items"
+	case WorkflowEventAutoAddToProject:
+		return "Auto add to project"
+	case WorkflowEventAutoCloseIssue:
+		return "Auto close issue"
+	default:
+		return string(we)
+	}
+}
+
+func (we WorkflowEvent) UUID() string {
+	switch we {
+	case WorkflowEventItemAddedToProject:
+		return "item_added_to_project"
+	case WorkflowEventItemReopened:
+		return "item_reopened"
+	case WorkflowEventItemClosed:
+		return "item_closed"
+	case WorkflowEventCodeChangesRequested:
+		return "code_changes_requested"
+	case WorkflowEventCodeReviewApproved:
+		return "code_review_approved"
+	case WorkflowEventPullRequestMerged:
+		return "pull_request_merged"
+	case WorkflowEventAutoArchiveItems:
+		return "auto_archive_items"
+	case WorkflowEventAutoAddToProject:
+		return "auto_add_to_project"
+	case WorkflowEventAutoCloseIssue:
+		return "auto_close_issue"
+	default:
+		return string(we)
+	}
+}
+
+type WorkflowFilterType string
+
+const (
+	WorkflowFilterTypeScope WorkflowFilterType = "scope" // issue, pull_request, etc.
+)
+
+type WorkflowFilter struct {
+	Type  WorkflowFilterType
+	Value string // e.g., "issue", "pull_request", etc.
+}
+
+type WorkflowActionType string
+
+const (
+	WorkflowActionTypeColumn WorkflowActionType = "column" // add the item to the project's column
+	WorkflowActionTypeLabel  WorkflowActionType = "label"  // choose one or more labels
+	WorkflowActionTypeClose  WorkflowActionType = "close"  // close the issue
+)
+
+type WorkflowAction struct {
+	ActionType  WorkflowActionType
+	ActionValue string
+}
+
+type Workflow struct {
+	ID              int64
+	ProjectID       int64              `xorm:"unique(s)"`
+	Project         *Project           `xorm:"-"`
+	WorkflowEvent   WorkflowEvent      `xorm:"unique(s)"`
+	WorkflowFilters []WorkflowFilter   `xorm:"TEXT json"`
+	WorkflowActions []WorkflowAction   `xorm:"TEXT json"`
+	CreatedUnix     timeutil.TimeStamp `xorm:"created"`
+	UpdatedUnix     timeutil.TimeStamp `xorm:"updated"`
+}
+
+// TableName overrides the table name used by ProjectWorkflow to `project_workflow`
+func (Workflow) TableName() string {
+	return "project_workflow"
+}
+
+func (p *Workflow) LoadProject(ctx context.Context) error {
+	if p.Project != nil || p.ProjectID <= 0 {
+		return nil
+	}
+	project, err := GetProjectByID(ctx, p.ProjectID)
+	if err != nil {
+		return err
+	}
+	p.Project = project
+	return nil
+}
+
+func (p *Workflow) Link(ctx context.Context) string {
+	if err := p.LoadProject(ctx); err != nil {
+		log.Error("ProjectWorkflow Link: %v", err)
+		return ""
+	}
+	return p.Project.Link(ctx) + fmt.Sprintf("/workflows/%d", p.ID)
+}
+
+func init() {
+	db.RegisterModel(new(Workflow))
+}
+
+func FindWorkflowEvents(ctx context.Context, projectID int64) (map[WorkflowEvent]*Workflow, error) {
+	events := make(map[WorkflowEvent]*Workflow)
+	if err := db.GetEngine(ctx).Where("project_id=?", projectID).Find(&events); err != nil {
+		return nil, err
+	}
+	res := make(map[WorkflowEvent]*Workflow, len(events))
+	for _, event := range events {
+		res[event.WorkflowEvent] = event
+	}
+	return res, nil
+}
+
+func GetWorkflowByID(ctx context.Context, id int64) (*Workflow, error) {
+	p, exist, err := db.GetByID[Workflow](ctx, id)
+	if err != nil {
+		return nil, err
+	}
+	if !exist {
+		return nil, util.ErrNotExist
+	}
+	return p, nil
+}

routers/web/projects/workflows.go

@@ -0,0 +1,85 @@
+// Copyright 2025 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package projects
+
+import (
+	"strconv"
+
+	project_model "code.gitea.io/gitea/models/project"
+	"code.gitea.io/gitea/modules/templates"
+	"code.gitea.io/gitea/services/context"
+)
+
+var (
+	tmplRepoWorkflows = templates.TplName("repo/projects/workflows")
+	tmplOrgWorkflows  = templates.TplName("org/projects/workflows")
+)
+
+func Workflows(ctx *context.Context) {
+	ctx.Data["WorkflowEvents"] = project_model.GetWorkflowEvents()
+
+	projectID := ctx.PathParamInt64("id")
+	p, err := project_model.GetProjectByID(ctx, projectID)
+	if err != nil {
+		if project_model.IsErrProjectNotExist(err) {
+			ctx.NotFound(nil)
+		} else {
+			ctx.ServerError("GetProjectByID", err)
+		}
+		return
+	}
+	if p.Type == project_model.TypeRepository && p.RepoID != ctx.Repo.Repository.ID {
+		ctx.NotFound(nil)
+		return
+	}
+	if (p.Type == project_model.TypeOrganization || p.Type == project_model.TypeIndividual) && p.OwnerID != ctx.ContextUser.ID {
+		ctx.NotFound(nil)
+		return
+	}
+
+	ctx.Data["Title"] = ctx.Tr("projects.workflows")
+	ctx.Data["PageIsWorkflows"] = true
+	ctx.Data["PageIsProjects"] = true
+	ctx.Data["PageIsProjectsWorkflows"] = true
+	ctx.Data["Project"] = p
+
+	workflows, err := project_model.FindWorkflowEvents(ctx, projectID)
+	if err != nil {
+		ctx.ServerError("GetWorkflows", err)
+		return
+	}
+	for _, wf := range workflows {
+		wf.Project = p
+	}
+	ctx.Data["Workflows"] = workflows
+
+	workflowIDStr := ctx.PathParam("workflow_id")
+	ctx.Data["workflowIDStr"] = workflowIDStr
+	var curWorkflow *project_model.Workflow
+	if workflowIDStr == "" { // get first value workflow or the first workflow
+		for _, wf := range workflows {
+			if wf.ID > 0 {
+				curWorkflow = wf
+				break
+			}
+		}
+	} else {
+		workflowID, _ := strconv.ParseInt(workflowIDStr, 10, 64)
+		if workflowID > 0 {
+			for _, wf := range workflows {
+				if wf.ID == workflowID {
+					curWorkflow = wf
+					break
+				}
+			}
+		}
+	}
+	ctx.Data["CurWorkflow"] = curWorkflow
+
+	if p.Type == project_model.TypeRepository {
+		ctx.HTML(200, tmplRepoWorkflows)
+	} else {
+		ctx.HTML(200, tmplOrgWorkflows)
+	}
+}

routers/web/web.go

@@ -34,6 +34,7 @@ import (
 	"code.gitea.io/gitea/routers/web/misc"
 	"code.gitea.io/gitea/routers/web/org"
 	org_setting "code.gitea.io/gitea/routers/web/org/setting"
+	"code.gitea.io/gitea/routers/web/projects"
 	"code.gitea.io/gitea/routers/web/repo"
 	"code.gitea.io/gitea/routers/web/repo/actions"
 	repo_setting "code.gitea.io/gitea/routers/web/repo/setting"
@@ -1031,6 +1032,10 @@ func registerWebRoutes(m *web.Router) {
 				m.Get("", org.Projects)
 				m.Get("/{id}", org.ViewProject)
 			}, reqUnitAccess(unit.TypeProjects, perm.AccessModeRead, true))
+			m.Group("/{id}/workflows", func() {
+				m.Get("", projects.Workflows)
+				m.Get("/{workflow_id}", projects.Workflows)
+			})
 			m.Group("", func() { //nolint:dupl // duplicates lines 1421-1441
 				m.Get("/new", org.RenderNewProject)
 				m.Post("/new", web.Bind(forms.CreateProjectForm{}), org.NewProjectPost)
@@ -1418,6 +1423,10 @@ func registerWebRoutes(m *web.Router) {
 	m.Group("/{username}/{reponame}/projects", func() {
 		m.Get("", repo.Projects)
 		m.Get("/{id}", repo.ViewProject)
+		m.Group("/{id}/workflows", func() {
+			m.Get("", projects.Workflows)
+			m.Get("/{workflow_id}", projects.Workflows)
+		})
 		m.Group("", func() { //nolint:dupl // duplicates lines 1034-1054
 			m.Get("/new", repo.RenderNewProject)
 			m.Post("/new", web.Bind(forms.CreateProjectForm{}), repo.NewProjectPost)