package model import ( "time" "gorm.io/gorm" ) type PostCollection struct { *Model Post *Post `json:"-"` PostID int64 `json:"post_id"` UserID int64 `json:"user_id"` } func (p *PostCollection) Get(db *gorm.DB) (*PostCollection, error) { var star PostCollection tn := db.NamingStrategy.TableName("PostCollection") + "." if p.Model != nil && p.ID > 0 { db = db.Where(tn+"id = ? AND "+tn+"is_del = ?", p.ID, 0) } if p.PostID > 0 { db = db.Where(tn+"post_id = ?", p.PostID) } if p.UserID > 0 { db = db.Where(tn+"user_id = ?", p.UserID) } db = db.Joins("Post").Where("Post.visibility <> ?", PostVisitPrivate).Order("Post.id DESC") err := db.First(&star).Error if err != nil { return &star, err } return &star, nil } func (p *PostCollection) Create(db *gorm.DB) (*PostCollection, error) { err := db.Omit("Post").Create(&p).Error return p, err } func (p *PostCollection) Delete(db *gorm.DB) error { return db.Model(&PostCollection{}).Omit("Post").Where("id = ? AND is_del = ?", p.Model.ID, 0).Updates(map[string]interface{}{ "deleted_on": time.Now().Unix(), "is_del": 1, }).Error } func (p *PostCollection) List(db *gorm.DB, conditions *ConditionsT, offset, limit int) ([]*PostCollection, error) { var collections []*PostCollection var err error tn := db.NamingStrategy.TableName("PostCollection") + "." if offset >= 0 && limit > 0 { db = db.Offset(offset).Limit(limit) } if p.UserID > 0 { db = db.Where(tn+"user_id = ?", p.UserID) } for k, v := range *conditions { if k == "ORDER" { db = db.Order(v) } else { db = db.Where(tn+k, v) } } db = db.Joins("Post").Where("Post.visibility <> ?", PostVisitPrivate).Order("Post.id DESC") if err = db.Where(tn+"is_del = ?", 0).Find(&collections).Error; err != nil { return nil, err } return collections, nil } func (p *PostCollection) Count(db *gorm.DB, conditions *ConditionsT) (int64, error) { var count int64 tn := db.NamingStrategy.TableName("PostCollection") + "." if p.PostID > 0 { db = db.Where(tn+"post_id = ?", p.PostID) } if p.UserID > 0 { db = db.Where(tn+"user_id = ?", p.UserID) } for k, v := range *conditions { if k != "ORDER" { db = db.Where(tn+k, v) } } db = db.Joins("Post").Where("Post.visibility <> ?", PostVisitPrivate) if err := db.Model(p).Count(&count).Error; err != nil { return 0, err } return count, nil }