我有以下2個gorm型號// Day is a corresponding day entrytype Day struct { gorm.Model Dateday string `json:"dateday" gorm:"type:date;NOT NULL"` Nameday string `json:"nameday" gorm:"type:varchar(100);NOT NULL"` Something sql.NullString `json:"something"` Holyday bool `json:"holyday"`}type Week struct { gorm.Model Start Day End Day}但是，執(zhí)行遷移后db.AutoMigrate(&Day{})db.AutoMigrate(&Week{})登錄數(shù)據(jù)庫并描述表weekspostgres-# \d+ weeks; Table "public.weeks" Column | Type | Collation | Nullable | Default | Storage | Stats target | Description------------+--------------------------+-----------+----------+-----------------------------------+---------+--------------+------------- id | integer | | not null | nextval('weeks_id_seq'::regclass) | plain | | created_at | timestamp with time zone | | | | plain | | updated_at | timestamp with time zone | | | | plain | | deleted_at | timestamp with time zone | | | | plain | |Indexes: "weeks_pkey" PRIMARY KEY, btree (id) "idx_weeks_deleted_at" btree (deleted_at)我沒有看到start/end字段，它大概也應(yīng)該是表的外鍵day（確實(shí)存在）這是為什么？
1 回答
米琪卡哇伊
TA貢獻(xiàn)1998條經(jīng)驗(yàn) 獲得超6個贊
要設(shè)置一對一關(guān)系，您還需要將 id 字段添加到結(jié)構(gòu)中。默認(rèn)情況下，您應(yīng)該將其命名為[YourFieldName]ID，如果您想為 id 字段使用其他名稱，您可以通過標(biāo)簽來完成，例如：
type Week struct {
? ? gorm.Model
? ? Start? ? Day
? ? End? ? ? Day `gorm:"foreignkey:EndRefer"`
? ? StartID? uint
? ? EndRefer uint
}
但要注意，AutoMigrate不能創(chuàng)建外鍵約束。
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