Fix project issues list and counting (#33594)

Co-authored-by: delvh <dev.lh@web.de>
Co-authored-by: wxiaoguang <wxiaoguang@gmail.com>

services/projects/issue.go

@@ -11,6 +11,7 @@ import (
 	issues_model "code.gitea.io/gitea/models/issues"
 	project_model "code.gitea.io/gitea/models/project"
 	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/optional"
 )
 
 // MoveIssuesOnProjectColumn moves or keeps issues in a column and sorts them inside that column
@@ -84,3 +85,123 @@ func MoveIssuesOnProjectColumn(ctx context.Context, doer *user_model.User, colum
 		return nil
 	})
 }
+
+// LoadIssuesFromProject load issues assigned to each project column inside the given project
+func LoadIssuesFromProject(ctx context.Context, project *project_model.Project, opts *issues_model.IssuesOptions) (map[int64]issues_model.IssueList, error) {
+	issueList, err := issues_model.Issues(ctx, opts.Copy(func(o *issues_model.IssuesOptions) {
+		o.ProjectID = project.ID
+		o.SortType = "project-column-sorting"
+	}))
+	if err != nil {
+		return nil, err
+	}
+
+	if err := issueList.LoadComments(ctx); err != nil {
+		return nil, err
+	}
+
+	defaultColumn, err := project.MustDefaultColumn(ctx)
+	if err != nil {
+		return nil, err
+	}
+
+	issueColumnMap, err := issues_model.LoadProjectIssueColumnMap(ctx, project.ID, defaultColumn.ID)
+	if err != nil {
+		return nil, err
+	}
+
+	results := make(map[int64]issues_model.IssueList)
+	for _, issue := range issueList {
+		projectColumnID, ok := issueColumnMap[issue.ID]
+		if !ok {
+			continue
+		}
+		if _, ok := results[projectColumnID]; !ok {
+			results[projectColumnID] = make(issues_model.IssueList, 0)
+		}
+		results[projectColumnID] = append(results[projectColumnID], issue)
+	}
+	return results, nil
+}
+
+// NumClosedIssues return counter of closed issues assigned to a project
+func loadNumClosedIssues(ctx context.Context, p *project_model.Project) error {
+	cnt, err := db.GetEngine(ctx).Table("project_issue").
+		Join("INNER", "issue", "project_issue.issue_id=issue.id").
+		Where("project_issue.project_id=? AND issue.is_closed=?", p.ID, true).
+		Cols("issue_id").
+		Count()
+	if err != nil {
+		return err
+	}
+	p.NumClosedIssues = cnt
+	return nil
+}
+
+// NumOpenIssues return counter of open issues assigned to a project
+func loadNumOpenIssues(ctx context.Context, p *project_model.Project) error {
+	cnt, err := db.GetEngine(ctx).Table("project_issue").
+		Join("INNER", "issue", "project_issue.issue_id=issue.id").
+		Where("project_issue.project_id=? AND issue.is_closed=?", p.ID, false).
+		Cols("issue_id").
+		Count()
+	if err != nil {
+		return err
+	}
+	p.NumOpenIssues = cnt
+	return nil
+}
+
+func LoadIssueNumbersForProjects(ctx context.Context, projects []*project_model.Project, doer *user_model.User) error {
+	for _, project := range projects {
+		if err := LoadIssueNumbersForProject(ctx, project, doer); err != nil {
+			return err
+		}
+	}
+	return nil
+}
+
+func LoadIssueNumbersForProject(ctx context.Context, project *project_model.Project, doer *user_model.User) error {
+	// for repository project, just get the numbers
+	if project.OwnerID == 0 {
+		if err := loadNumClosedIssues(ctx, project); err != nil {
+			return err
+		}
+		if err := loadNumOpenIssues(ctx, project); err != nil {
+			return err
+		}
+		project.NumIssues = project.NumClosedIssues + project.NumOpenIssues
+		return nil
+	}
+
+	if err := project.LoadOwner(ctx); err != nil {
+		return err
+	}
+
+	// for user or org projects, we need to check access permissions
+	opts := issues_model.IssuesOptions{
+		ProjectID: project.ID,
+		Doer:      doer,
+		AllPublic: doer == nil,
+		Owner:     project.Owner,
+	}
+
+	var err error
+	project.NumOpenIssues, err = issues_model.CountIssues(ctx, opts.Copy(func(o *issues_model.IssuesOptions) {
+		o.IsClosed = optional.Some(false)
+	}))
+	if err != nil {
+		return err
+	}
+
+	project.NumClosedIssues, err = issues_model.CountIssues(ctx, opts.Copy(func(o *issues_model.IssuesOptions) {
+		o.IsClosed = optional.Some(true)
+	}))
+	if err != nil {
+		return err
+	}
+
+	project.NumIssues = project.NumClosedIssues + project.NumOpenIssues
+
+	return nil
+}