Gorm The foreign key not ending with "ID" cannot preload data normally.

GORM Playground Link

https://github.com/go-gorm/playground/pull/1

Description

table t_user

CREATE TABLE `t_user` (
  `id` int unsigned NOT NULL AUTO_INCREMENT COMMENT 'user ID',
  `name` varchar(255) DEFAULT NULL COMMENT 'user name',
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb3 COMMENT='user table';

table t_device

CREATE TABLE `t_device` (
  `id` int unsigned NOT NULL AUTO_INCREMENT,
  `name` varchar(255) COLLATE utf8mb3_bin DEFAULT NULL,
  `created_by` int NOT NULL,
  `created_at` datetime NOT NULL,
  PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8mb3 COLLATE=utf8mb3_bin COMMENT='device table';

User struct

type User struct {
    ID       int64   `gorm:"type:int(11);autoIncrement;primaryKey;column:id" json:"id"`
    Name     string  `gorm:"type:string;size:100" json:"name"`
}

Device struct 1

type Device struct {
    ID            int64      `gorm:"type:int(11);autoIncrement;primaryKey;column:id" json:"id"`
    Name          string     `gorm:"type:string;size:255" json:"name"`
    CreatedBy     int64      `gorm:"type:int(11)" json:"createdBy"`
    CreatedByUser *User      `gorm:"foreignKey:CreatedBy" json:"createdByUser"`
    CreatedAt     time.Time  `json:"createdAt"`
}

Device struct 2

type Device struct {
    ID            int64      `gorm:"type:int(11);autoIncrement;primaryKey;column:id" json:"id"`
    Name          string     `gorm:"type:string;size:255" json:"name"`
    CreatedID     int64      `gorm:"type:int(11)" json:"createdBy"`
    CreatedByUser *User      `gorm:"foreignKey:CreatedID" json:"createdByUser"`
    CreatedAt     time.Time  `json:"createdAt"`
}

query

var devices = make([]*models.Device, 0)
db.Model(new(models.Device)).Preload("CreatedByUser").Find(&devices).Error

query with device struct 1, cannot preload CreatedByUser normally. query with device struct 2, works ok.

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Comment From: github-actions[bot]