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Package yii2-migrate-updater
Short Description The extension allows you to save data when performing a ./yii migrate/redo
License MIT
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Informations about the package yii2-migrate-updater
update migration to migrate/redo
На русском ТУТ
This extension allows you not to lose data when executing ./yii migrate/redo
We all know that Yii2 does not have a table update system. There is redo, which removes the table and recreates it according to the specified rules. This is good, but sometimes, You need to update the system, including the tables and still not lose data.
This solution allows this, but provided that the new fields appearing in the table will be with the resolution null.
In addition, the new table should not delete the old columns.
Then maybe we'll fix it, but in the initial stages it will be like this.
Installation
The preferred way to install this extension is through composer.
Either run
or add
to the require section of your composer.json file
and run
Usage
The use is fairly simple, you must install this solution and connect the class in your migration class.
To save migrations, you need to connect the migration extension class, and use it,
to create their own migrations.
In addition, you must declare a public variable with the table name public $tableName
By default, the class uses a flag that allows or denies the storage of data,
it is specified in the parent class as public $saveData = true; if you do not need to try to save data,
reassign this property in its class to disable this functionality
This functionality is implemented by the auxiliary class TableData. Below, you can see its methods and properties that you can use outside of migration extensions and for diagnostics.
Methods of the TableData class
-
getData ()- makes a request to the database to receive data, usingyii\db\Query -
Dump ($type = 'create')- creates or reads the dump of the table, respectively the passed parameterscreateorread -
getInsertString ()- gets the assembledinsert sqlstring. For diagnosis
Attention
After reading, the dump is deleted
If you want to see an array of collected or other data, then
you can use the public properties of the class TableData
Public Properties
-
$tablename- the name of the table, is obtained in the constructor -
$selecteddata- after the request, will contain an array of data. -
$sqlstring- the query string is obtained after its assembly
