func PatchProject()

in backend/server/services/project.go [136:258]
94 lines of code
18 McCabe index (conditional complexity)

func PatchProject(name string, body map[string]interface{}) (*models.ApiOutputProject, errors.Error) {
	projectInput := &models.ApiInputProject{}

	// load input
	err := helper.DecodeMapStruct(body, projectInput, true)
	if err != nil {
		return nil, err
	}

	// wrap all operation inside a transaction
	tx := db.Begin()
	defer func() {
		if r := recover(); r != nil || err != nil {
			err = tx.Rollback()
			if err != nil {
				logger.Error(err, "PatchProject: failed to rollback")
			}
		}
	}()

	project, err := getProjectByName(tx, name, dal.Lock(true, false))
	if err != nil {
		return nil, err
	}

	// allowed to changed the name
	if projectInput.Name == "" {
		projectInput.Name = name
	}
	project.BaseProject = projectInput.BaseProject

	// name changed, updates the related entities as well
	if name != project.Name {
		// ProjectMetric
		err = tx.UpdateColumn(
			&models.ProjectMetricSetting{},
			"project_name", project.Name,
			dal.Where("project_name = ?", name),
		)
		if err != nil {
			return nil, err
		}

		// ProjectPrMetric
		err = tx.UpdateColumn(
			&crossdomain.ProjectPrMetric{},
			"project_name", project.Name,
			dal.Where("project_name = ?", name),
		)
		if err != nil {
			return nil, err
		}

		// ProjectIssueMetric
		err = tx.UpdateColumn(
			&crossdomain.ProjectIssueMetric{},
			"project_name", project.Name,
			dal.Where("project_name = ?", name),
		)
		if err != nil {
			return nil, err
		}

		// ProjectMapping
		err = tx.UpdateColumn(
			&crossdomain.ProjectMapping{},
			"project_name", project.Name,
			dal.Where("project_name = ?", name),
		)
		if err != nil {
			return nil, err
		}

		// Blueprint
		err = tx.UpdateColumn(
			&models.Blueprint{},
			"project_name", project.Name,
			dal.Where("project_name = ?", name),
		)
		if err != nil {
			return nil, err
		}
		// rename project
		err = tx.UpdateColumn(
			&models.Project{},
			"name", project.Name,
			dal.Where("name = ?", name),
		)
	}

	// Blueprint
	err = tx.UpdateColumn(
		&models.Blueprint{},
		"enable", projectInput.Enable,
		dal.Where("project_name = ?", name),
	)
	if err != nil {
		return nil, err
	}

	// refresh project metrics if needed
	if len(projectInput.Metrics) > 0 {
		err = refreshProjectMetrics(tx, projectInput)
		if err != nil {
			return nil, err
		}
	}

	// update project itself
	err = tx.Update(project)
	if err != nil {
		return nil, err
	}

	// commit the transaction
	err = tx.Commit()
	if err != nil {
		return nil, err
	}

	// all good, render output
	return makeProjectOutput(project, false)
}