boxzilla / src / admin / class-migrations.php

class-migrations.php in Boxzilla – WordPress Popup Builder 3.1.17, at src/admin/class-migrations.php

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1	<?php
2
3	namespace Boxzilla\Admin;
4
5	use Exception;
6
7	/**
8	*
9	*/
10	class Migrations {
11
12	/**
13	* @var float
14	*/
15	protected $version_from = 0;
16
17	/**
18	* @var float
19	*/
20	protected $version_to = 0;
21
22	/**
23	* @var string
24	*/
25	protected $migrations_dir = '';
26
27	/**
28	* @param float $from
29	* @param float $to
30	* @param string $migrations_dir
31	*/
32	public function __construct( $from, $to, $migrations_dir ) {
33	$this->version_from = $from;
34	$this->version_to = $to;
35	$this->migrations_dir = $migrations_dir;
36	}
37
38	/**
39	* Run the various upgrade routines, all the way up to the latest version
40	*/
41	public function run() {
42	$migrations = $this->find_migrations();
43	// run in sub-function for scope
44	array_map( array( $this, 'run_migration' ), $migrations );
45	}
46
47	/**
48	* @return array
49	*/
50	public function find_migrations() {
51	$files = glob( rtrim( $this->migrations_dir, '/' ) . '/*.php' );
52	$migrations = array();
53
54	// return empty array when glob returns non-array value.
55	if( ! is_array( $files ) ) {
56	return $migrations;
57	}
58
59	foreach( $files as $file ) {
60	$migration = basename( $file );
61	$parts = explode( '-', $migration );
62	$version = $parts[0];
63
64	// check if migration file is not for an even higher version
65	if( version_compare( $version, $this->version_to, '>' ) ) {
66	continue;
67	}
68
69	// check if we ran migration file before.
70	if( version_compare( $this->version_from, $version, '>=' ) ) {
71	continue;
72	}
73
74	// schedule migration file for running
75	$migrations[] = $file;
76	}
77
78	return $migrations;
79	}
80
81	/**
82	* Include a migration file and runs it.
83	*
84	* @param string $file
85	*
86	* @throws Exception
87	*/
88	protected function run_migration( $file ) {
89
90	if( ! file_exists( $file ) ) {
91	throw new Exception( "Migration file $file does not exist.");
92	}
93
94	include $file;
95	}
96	}