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package jinzhu
import (
"github.com/rocboss/paopao-ce/internal/model"
"gorm.io/gorm"
)
func createTag ( db * gorm . DB , tag * model . Tag ) ( * model . Tag , error ) {
t , err := tag . Get ( db )
if err != nil {
tag . QuoteNum = 1
return tag . Create ( db )
}
// 更新
t . QuoteNum ++
err = t . Update ( db )
if err != nil {
return nil , err
}
return t , nil
}
func deleteTag ( db * gorm . DB , tag * model . Tag ) error {
tag , err := tag . Get ( db )
if err != nil {
return err
}
tag . QuoteNum --
return tag . Update ( db )
}
func deleteTags ( db * gorm . DB , tags [ ] string ) error {
allTags , err := ( & model . Tag { } ) . TagsFrom ( db , tags )
if err != nil {
return err
}
for _ , tag := range allTags {
tag . QuoteNum --
if tag . QuoteNum < 0 {
tag . QuoteNum = 0
}
// 宽松处理错误, 尽可能更新tag记录, 只记录最后一次错误
if e := tag . Update ( db ) ; e != nil {
err = e
}
}
return err
}
// 根据IDs获取用户列表
func getUsersByIDs ( db * gorm . DB , ids [ ] int64 ) ( [ ] * model . User , error ) {
user := & model . User { }
return user . List ( db , & model . ConditionsT {
"id IN ?" : ids ,
} , 0 , 0 )
}