An in-depth study of the Create method in Thinkphp_PHP tutorial

Due to work reasons, I encountered a problem with the create() method of thinkPHP, so I traced the create() method to further explore the create() method.
It turns out that thecreate() method has two parameters, the first parameter is the well-known data parameter, the second one is the hidden $type parameter, so what is this parameter used to control?
//State $type = $type?$type!empty($data[$this->getPk()])?self::MODEL_UPDATE:self::MODEL_INSERT);
Thinked about this sentence carefully Then I discovered that the hidden parameter is used to indicate the specific operation of the database. 1 is the insertion operation, 0 is the update operation , and
does not need to be given by default. Assigned, the reason is that the system can automatically identify

This is how it is identified:

If the data you pass in contains the same field as the primary key, this database operation will be an update operation by default. This judgment is mainly because in most cases the primary key is auto-incremented by default, and the insertion operation generally does not give Primary key assignment, but the problem lies here

The project I recently worked on directly used the student number as the primary key. The student number cannot be auto-incremented but has a fixed format and must be entered.
But the system automatically regarded my entry operation as an update operation. , and my auto-complete code is written like this:

Copy code The code is as follows:

protected $_auto = array(
array('majorid','maxmajoridadd1',1,'callback'),
);

The third parameter 1 can be seen from the manual. It means that this automatic completion operation is inserting time executed.
The system regarded my insert operation as an update operation, so the auto-complete code I set naturally became invalid and was not executed

When there is a situation where you also need to enter the primary key field value, you can write like this

Copy code The code is as follows:

create($_POST,1)

Directly tell the create method that this operation is an insertion operation

This is a very difficult problem to find. Recently, I found that many people have encountered this problem, so I wrote an article to explain it.

In addition, the automatic verification/auto-complete function may not work, and it may be that your Model class name is written incorrectly. I have made this mistake. It often happens with multiple letters and missing letters

Basically, these are the two situations where automatic verification/automatic completion fails

http://www.bkjia.com/PHPjc/825363.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/825363.htmlTechArticleDue to work reasons, I encountered a problem with the create() method of thinkPHP, so I tracked create() to further Explored the create() method. It turns out that the create() method has two parameters,...