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This article mainly explains "how to set the specified value according to the conditions of yii2". Interested friends may wish to have a look at it. The method introduced in this paper is simple, fast and practical. Next, let the editor take you to learn "how to set the specified value according to the conditions of yii2"!

In the _ form.php file automatically generated by gii, we can judge whether it is being added or updated according to the value returned by the code $model- > isNewRecord. In the form.php file, we can also assign a default value to the field input box according to its attribute value.

The connect field is a multi-check box field, and the data passed from the foreground to the background is in array format by default. The corresponding field is handled by the tostring method, assigning its value to the static variable $connect, and then formatting the array into a string in beforeSave, which is returned and stored in the database.

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