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// Copyright 2018 The Gitea Authors. All rights reserved.
// Use of this source code is governed by a MIT-style
// license that can be found in the LICENSE file.
package models
import (
"code.gitea.io/gitea/models/db"
user_model "code.gitea.io/gitea/models/user"
"code.gitea.io/gitea/modules/timeutil"
)
// IssueDependency represents an issue dependency
type IssueDependency struct {
ID int64 `xorm:"pk autoincr"`
UserID int64 `xorm:"NOT NULL"`
IssueID int64 `xorm:"UNIQUE(issue_dependency) NOT NULL"`
DependencyID int64 `xorm:"UNIQUE(issue_dependency) NOT NULL"`
CreatedUnix timeutil.TimeStamp `xorm:"created"`
UpdatedUnix timeutil.TimeStamp `xorm:"updated"`
}
func init() {
db.RegisterModel(new(IssueDependency))
}
// DependencyType Defines Dependency Type Constants
type DependencyType int
// Define Dependency Types
const (
DependencyTypeBlockedBy DependencyType = iota
DependencyTypeBlocking
)
// CreateIssueDependency creates a new dependency for an issue
func CreateIssueDependency(user *user_model.User, issue, dep *Issue) error {
ctx, committer, err := db.TxContext()
if err != nil {
return err
}
defer committer.Close()
sess := db.GetEngine(ctx)
// Check if it aleready exists
exists, err := issueDepExists(sess, issue.ID, dep.ID)
if err != nil {
return err
}
if exists {
return ErrDependencyExists{issue.ID, dep.ID}
}
// And if it would be circular
circular, err := issueDepExists(sess, dep.ID, issue.ID)
if err != nil {
return err
}
if circular {
return ErrCircularDependency{issue.ID, dep.ID}
}
if err := db.Insert(ctx, &IssueDependency{
UserID: user.ID,
IssueID: issue.ID,
DependencyID: dep.ID,
}); err != nil {
return err
}
// Add comment referencing the new dependency
if err = createIssueDependencyComment(ctx, user, issue, dep, true); err != nil {
return err
}
return committer.Commit()
}
// RemoveIssueDependency removes a dependency from an issue
func RemoveIssueDependency(user *user_model.User, issue, dep *Issue, depType DependencyType) (err error) {
ctx, committer, err := db.TxContext()
if err != nil {
return err
}
defer committer.Close()
var issueDepToDelete IssueDependency
switch depType {
case DependencyTypeBlockedBy:
issueDepToDelete = IssueDependency{IssueID: issue.ID, DependencyID: dep.ID}
case DependencyTypeBlocking:
issueDepToDelete = IssueDependency{IssueID: dep.ID, DependencyID: issue.ID}
default:
return ErrUnknownDependencyType{depType}
}
affected, err := db.GetEngine(ctx).Delete(&issueDepToDelete)
if err != nil {
return err
}
// If we deleted nothing, the dependency did not exist
if affected <= 0 {
return ErrDependencyNotExists{issue.ID, dep.ID}
}
// Add comment referencing the removed dependency
if err = createIssueDependencyComment(ctx, user, issue, dep, false); err != nil {
return err
}
return committer.Commit()
}
// Check if the dependency already exists
func issueDepExists(e db.Engine, issueID, depID int64) (bool, error) {
return e.Where("(issue_id = ? AND dependency_id = ?)", issueID, depID).Exist(&IssueDependency{})
}
// IssueNoDependenciesLeft checks if issue can be closed
func IssueNoDependenciesLeft(issue *Issue) (bool, error) {
return issueNoDependenciesLeft(db.GetEngine(db.DefaultContext), issue)
}
func issueNoDependenciesLeft(e db.Engine, issue *Issue) (bool, error) {
exists, err := e.
Table("issue_dependency").
Select("issue.*").
Join("INNER", "issue", "issue.id = issue_dependency.dependency_id").
Where("issue_dependency.issue_id = ?", issue.ID).
And("issue.is_closed = ?", "0").
Exist(&Issue{})
return !exists, err
}
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