CDbCommand 执行 SQL 语句失败：SQLSTATE[HY000]：一般错误：1364

Question

I am following the Yii Blog tutorial , and am stuck at this error while doing the comments section.

CDbCommand failed to execute the SQL statement: SQLSTATE[HY000]: General error: 1364 Field 'post_id' doesn't have a default value. The SQL statement executed was: INSERT INTO `tbl_comment` (`status`, `content`, `author`, `email`, `url`, `create_time`) VALUES (:yp0, :yp1, :yp2, :yp3, :yp4, :yp5) 

This same error was on status first, but I set the default value for it in the database. But this time its post_id, I dont know how to work it out. Post ID is the FK from another table. Here is the whole database design.

Thanks!

Answer 1

Looks like your "post_id" attribute, which probably is your primary key, is not set to "auto increment" or is setup with "not null" in your Database. Take a look at the following ORM. Compare it with yours and fix your DB-sided error. And don't forget to upgrade you model via. GII!

-- -----------------------------------------------------
-- Table `mydb`.`tbl_comment`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `mydb`.`tbl_comment` ;

CREATE TABLE IF NOT EXISTS `mydb`.`tbl_comment` (
  `post_id` INT NOT NULL,
  `status` VARCHAR(45) NULL,
  `content` TEXT NULL COMMENT ' ',
  `author` VARCHAR(255) NULL,
  `email` VARCHAR(255) NULL,
  `url` VARCHAR(511) NULL,
  `create_time` DATETIME NULL,
  PRIMARY KEY (`post_id`))
ENGINE = InnoDB;

Else, if "post_id" is not your primary key and is not set as "auto increment" you can try this to fix it:

Solution 1) Make "post_id" set before save/update in php like:

$model = new Tbl_comment; //hope this is your Yii model name...
$model->post_id = 123

if(!$model->save()) {
   var_dump($model->errors);
}

Solution 2) Add a default value in your database ORM on attribute "post_id". (Cause i dont know your relation and ORM right.)

-----------------------------------------
-- Table `mydb`.`tbl_comment`
-- -----------------------------------------------------
DROP TABLE IF EXISTS `mydb`.`tbl_comment` ;

CREATE TABLE IF NOT EXISTS `mydb`.`tbl_comment` (
  `post_id` INT NULL DEFAULT someDefault,
  `status` VARCHAR(45) NULL,
  `content` TEXT NULL COMMENT ' ',
  `author` VARCHAR(255) NULL,
  `email` VARCHAR(255) NULL,
  `url` VARCHAR(511) NULL,
  `create_time` DATETIME NULL)
ENGINE = InnoDB;

Table details: