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