Migration_48.php — Independent Analytics – WordPress Analytics Plugin 2.15.0

independent-analytics / IAWP / Migrations / Migration_48.php

independent-analytics / IAWP / Migrations Last commit date

Migration_48.php

55 lines

1	<?php
2
3	namespace IAWP\Migrations;
4
5	use IAWP\Database;
6	/** @internal */
7	class Migration_48 extends \IAWP\Migrations\Step_Migration
8	{
9	/**
10	* @return int
11	*/
12	protected function database_version() : int
13	{
14	return 48;
15	}
16	/**
17	* @return array
18	*/
19	protected function queries() : array
20	{
21	return [$this->drop_table_if_exists($this->tables::utm_mediums()), $this->create_utm_mediums_table(), $this->populate_utm_mediums_table(), $this->add_utm_medium_id(), $this->populate_utm_medium_id_column(), $this->modify_utm_medium_id_column(), $this->drop_original_landing_page_title_column(), $this->index_new_column()];
22	}
23	private function create_utm_mediums_table() : string
24	{
25	return "\n CREATE TABLE {$this->tables::utm_mediums()} (\n id BIGINT(20) UNSIGNED AUTO_INCREMENT,\n utm_medium VARCHAR(512) NOT NULL,\n PRIMARY KEY (id)\n ) DEFAULT CHARACTER SET {$this->character_set()} COLLATE {$this->collation()};\n ";
26	}
27	private function populate_utm_mediums_table() : string
28	{
29	return "\n INSERT INTO {$this->tables::utm_mediums()} (utm_medium)\n SELECT DISTINCT LEFT(utm_medium, 512)\n FROM {$this->tables::campaigns()} WHERE utm_medium IS NOT NULL\n ";
30	}
31	private function add_utm_medium_id() : string
32	{
33	return "\n ALTER TABLE {$this->tables::campaigns()} ADD COLUMN utm_medium_id BIGINT(20) UNSIGNED;\n ";
34	}
35	private function populate_utm_medium_id_column() : string
36	{
37	$old_collation = Database::column_collation_for($this->tables::campaigns(), 'utm_medium');
38	$current_collation = $this->collation();
39	$collation_statement = $this->get_collation_statement($current_collation, $old_collation);
40	return "\n UPDATE\n {$this->tables::campaigns()} AS campaigns\n JOIN {$this->tables::utm_mediums()} AS mediums ON campaigns.utm_medium = mediums.utm_medium {$collation_statement}\n SET\n campaigns.utm_medium_id = mediums.id\n ";
41	}
42	private function modify_utm_medium_id_column() : string
43	{
44	return "\n ALTER TABLE {$this->tables::campaigns()} MODIFY COLUMN utm_medium_id BIGINT(20) UNSIGNED NOT NULL;\n ";
45	}
46	private function drop_original_landing_page_title_column() : string
47	{
48	return "\n ALTER TABLE {$this->tables::campaigns()} DROP COLUMN utm_medium;\n ";
49	}
50	private function index_new_column() : string
51	{
52	return "\n ALTER TABLE {$this->tables::campaigns()} ADD INDEX (utm_medium_id);\n ";
53	}
54	}
55