Migrator::resolveMigrationClass() - Code Metrics - Inspection of "Fix rollback steps bug." - zachleigh/yarak - Measure and Improve Code Quality continuously with Scrutinizer

Completed

Push — master ( a52247...91a49a )

by Zach

created 2017-03-03 12:57 UTC

Migrator::resolveMigrationClass() A

↳ Parent: Migrator

Complexity

Conditions	1
Paths	1

Size

Total Lines	8
Code Lines	4

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
dl	0
loc	8
rs	9.4285
c	0
b	0
f	0
cc	1
eloc	4
nc	1
nop	1

<?php

namespace Yarak\Migrations;

use Yarak\Helpers\Str;
use Yarak\Config\Config;
use Yarak\Helpers\Paths;
use Yarak\DB\ConnectionResolver;

class Migrator
{
    use Paths;

    /**
     * Yarak config.
     *
     * @var Config
     */
    protected $config;

    /**
     * Database connection resolver.
     *
     * @var ConnectionResolver
     */
    protected $resolver;

    /**
     * Repository for logging migration activity.
     *
     * @var MigrationRepository
     */
    protected $repository;

    /**
     * The active database connection.
     *
     * @var Phalcon\Db\Adapter\Pdo
     */
    protected $connection = null;

    /**
     * Log of info/error messages.
     *
     * @var array
     */
    protected $log = [];

    /**
     * Construct.
     *
     * @param Config                       $config
     * @param ConnectionResolver           $resolver
     * @param MigrationRepositoryInterface $repository
     */
    public function __construct(
        Config $config,
        ConnectionResolver $resolver,
        MigrationRepository $repository
    ) {
        $this->config = $config;
        $this->resolver = $resolver;
        $this->repository = $repository;
    }

    /**
     * Run migrations.
     *
     * @return array
     */
    public function run()
    {
        $this->setUp();

        $pendingMigrations = $this->getPendingMigrations();

        return $this->runPending($pendingMigrations);
    }

    /**
     * Get all migration filenames that have not been run.
     *
     * @return array
     */
    protected function getPendingMigrations()
    {
        return array_diff(
            $this->getMigrationFiles(),
            $this->repository->getRanMigrations()
        );
    }

    /**
     * Get array of migration file names from directory listed in config.
     *
     * @return array
     */
    protected function getMigrationFiles()
    {
        $files = scandir($this->config->getMigrationDirectory());

        $files = array_filter($files, function ($file) {
            return strpos($file, '.php') !== false;
        });

        $files = array_map(function ($file) {
            return str_replace('.php', '', $file);
        }, $files);

        return array_values($files);
    }

    /**
     * Run pending migrations.
     *
     * @param array $migrations
     *
     * @return array
     */
    protected function runPending(array $migrations)
    {
        if (count($migrations) === 0) {
            $this->log('<info>No pending migrations to run.</info>');

            return [];
        }

        $batch = $this->repository->getNextBatchNumber();

        $this->connection->begin();

        foreach ($migrations as $migration) {
            $this->runUp($migration, $batch);
        }

        $this->connection->commit();

        return $migrations;
    }

    /**
     * Run the migration.
     *
     * @param string $migration
     * @param int    $batch
     */
    protected function runUp($migration, $batch)
    {
        $migrationClass = $this->resolveMigrationClass($migration);

        try {
            $migrationClass->up($this->connection);
        } catch (\Exception $e) {
            return $this->log("<error>{$e->getMessage()}</error>");
        }

        $this->log("<info>Migrated {$migration}.</info>");

        $this->repository->insertRecord($migration, $batch);
    }

    /**
     * Resolve the migration class from the file name.
     *
     * @param string $migration
     *
     * @return Yarak\Migrations\Migration
     */
    public function resolveMigrationClass($migration)
    {
        require_once $this->config->getMigrationDirectory().$migration.'.php';

        $class = Str::studly(implode('_', array_slice(explode('_', $migration), 4)));

        return new $class();
    }

    /**
     * Rollback migrations.
     *
     * @param int $steps
     *
     * @return array
     */
    public function rollback($steps = 1)
    {
        $this->setUp();

        $toRollback = $this->repository->getRanMigrations(null, $steps);

        return $this->runRollback($toRollback);
    }

    /**
     * Rollback given migrations.
     *
     * @param array $migrations
     *
     * @return array
     */
    protected function runRollback(array $migrations)
    {
        if (count($migrations) === 0) {
            $this->log('<info>Nothing to rollback.</info>');

            return [];
        }

        $this->connection->begin();

        foreach (array_reverse($migrations) as $migration) {
            $this->runDown($migration);
        }

        $this->connection->commit();

        return $migrations;
    }

    /**
     * Rollback the migration.
     *
     * @param string $migration
     */
    protected function runDown($migration)
    {
        $migrationClass = $this->resolveMigrationClass($migration);

        try {
            $migrationClass->down($this->connection);
        } catch (\Exception $e) {
            return $this->log("<error>{$e->getMessage()}</error>");
        }

        $this->log("<info>Rolled back {$migration}.</info>");

        $this->repository->deleteRecord($migration);
    }

    /**
     * Reset the database by rolling back all migrations.
     *
     * @return array
     */
    public function reset()
    {
        $this->setUp();

        $toRollback = $this->repository->getRanMigrations();

        return $this->runRollback($toRollback);
    }

    /**
     * Reset the database and run all migrations.
     *
     * @return array
     */
    public function refresh()
    {
        $this->setUp();

        $toRollback = $this->repository->getRanMigrations();

        $this->runRollback($toRollback);

        $pendingMigrations = $this->getPendingMigrations();

        return $this->runPending($pendingMigrations);
    }

    /**
     * Perform setup procedures for migrations.
     */
    protected function setUp()
    {
        if (!$this->connection) {
            $this->setConnection();
        }

        $this->createMigrationsRepository();

        $this->makeDirectoryStructure($this->config->getAllDatabaseDirectories());
    }

    /**
     * Set connection to database on object.
     *
     * @return Pdo
     */
    public function setConnection()
    {
        $dbConfig = $this->config->get('database');

        $this->connection = $this->resolver->getConnection($dbConfig);


        $this->repository->setConnection($this->connection);

        return $this;
    }

    /**
     * Return the connection.
     *
     * @return Phalcon\Db\Adapter\Pdo
     */
    public function getConnection()
    {
        return $this->connection;
    }

    /**
     * Create the migrations table if it doesn't exist.
     */
    public function createMigrationsRepository()
    {
        if (!$this->repository->exists()) {
            $this->repository->create();
        }

        return $this;
    }

    /**
     * Log a message.
     *
     * @param string $message
     */
    protected function log($message)
    {
        $this->log[] = $message;
    }

    /**
     * Return the object log.
     *
     * @return array
     */
    public function getLog()
    {
        return $this->log;
    }
}


1		<?php
2
3		namespace Yarak\Migrations;
4
5		use Yarak\Helpers\Str;
6		use Yarak\Config\Config;
7		use Yarak\Helpers\Paths;
8		use Yarak\DB\ConnectionResolver;
9
10		class Migrator
11		{
12		use Paths;
13
14		/**
15		* Yarak config.
16		*
17		* @var Config
18		*/
19		protected $config;
20
21		/**
22		* Database connection resolver.
23		*
24		* @var ConnectionResolver
25		*/
26		protected $resolver;
27
28		/**
29		* Repository for logging migration activity.
30		*
31		* @var MigrationRepository
32		*/
33		protected $repository;
34
35		/**
36		* The active database connection.
37		*
38		* @var Phalcon\Db\Adapter\Pdo
39		*/
40		protected $connection = null;
41
42		/**
43		* Log of info/error messages.
44		*
45		* @var array
46		*/
47		protected $log = [];
48
49		/**
50		* Construct.
51		*
52		* @param Config $config
53		* @param ConnectionResolver $resolver
54		* @param MigrationRepositoryInterface $repository
55		*/
56		public function __construct(
57		Config $config,
58		ConnectionResolver $resolver,
59		MigrationRepository $repository
60		) {
61		$this->config = $config;
62		$this->resolver = $resolver;
63		$this->repository = $repository;
64		}
65
66		/**
67		* Run migrations.
68		*
69		* @return array
70		*/
71		public function run()
72		{
73		$this->setUp();
74
75		$pendingMigrations = $this->getPendingMigrations();
76
77		return $this->runPending($pendingMigrations);
78		}
79
80		/**
81		* Get all migration filenames that have not been run.
82		*
83		* @return array
84		*/
85		protected function getPendingMigrations()
86		{
87		return array_diff(
88		$this->getMigrationFiles(),
89		$this->repository->getRanMigrations()
90		);
91		}
92
93		/**
94		* Get array of migration file names from directory listed in config.
95		*
96		* @return array
97		*/
98		protected function getMigrationFiles()
99		{
100		$files = scandir($this->config->getMigrationDirectory());
101
102		$files = array_filter($files, function ($file) {
103		return strpos($file, '.php') !== false;
104		});
105
106		$files = array_map(function ($file) {
107		return str_replace('.php', '', $file);
108		}, $files);
109
110		return array_values($files);
111		}
112
113		/**
114		* Run pending migrations.
115		*
116		* @param array $migrations
117		*
118		* @return array
119		*/
120		protected function runPending(array $migrations)
121		{
122		if (count($migrations) === 0) {
123		$this->log('<info>No pending migrations to run.</info>');
124
125		return [];
126		}
127
128		$batch = $this->repository->getNextBatchNumber();
129
130		$this->connection->begin();
131
132		foreach ($migrations as $migration) {
133		$this->runUp($migration, $batch);
134		}
135
136		$this->connection->commit();
137
138		return $migrations;
139		}
140
141		/**
142		* Run the migration.
143		*
144		* @param string $migration
145		* @param int $batch
146		*/
147	View Code Duplication	protected function runUp($migration, $batch)
148		{
149		$migrationClass = $this->resolveMigrationClass($migration);
150
151		try {
152		$migrationClass->up($this->connection);
153		} catch (\Exception $e) {
154		return $this->log("<error>{$e->getMessage()}</error>");
155		}
156
157		$this->log("<info>Migrated {$migration}.</info>");
158
159		$this->repository->insertRecord($migration, $batch);
160		}
161
162		/**
163		* Resolve the migration class from the file name.
164		*
165		* @param string $migration
166		*
167		* @return Yarak\Migrations\Migration
168		*/
169		public function resolveMigrationClass($migration)
170		{
171		require_once $this->config->getMigrationDirectory().$migration.'.php';
172
173		$class = Str::studly(implode('_', array_slice(explode('_', $migration), 4)));
174
175		return new $class();
176		}
177
178		/**
179		* Rollback migrations.
180		*
181		* @param int $steps
182		*
183		* @return array
184		*/
185		public function rollback($steps = 1)
186		{
187		$this->setUp();
188
189		$toRollback = $this->repository->getRanMigrations(null, $steps);
190
191		return $this->runRollback($toRollback);
192		}
193
194		/**
195		* Rollback given migrations.
196		*
197		* @param array $migrations
198		*
199		* @return array
200		*/
201		protected function runRollback(array $migrations)
202		{
203		if (count($migrations) === 0) {
204		$this->log('<info>Nothing to rollback.</info>');
205
206		return [];
207		}
208
209		$this->connection->begin();
210
211		foreach (array_reverse($migrations) as $migration) {
212		$this->runDown($migration);
213		}
214
215		$this->connection->commit();
216
217		return $migrations;
218		}
219
220		/**
221		* Rollback the migration.
222		*
223		* @param string $migration
224		*/
225	View Code Duplication	protected function runDown($migration)
226		{
227		$migrationClass = $this->resolveMigrationClass($migration);
228
229		try {
230		$migrationClass->down($this->connection);
231		} catch (\Exception $e) {
232		return $this->log("<error>{$e->getMessage()}</error>");
233		}
234
235		$this->log("<info>Rolled back {$migration}.</info>");
236
237		$this->repository->deleteRecord($migration);
238		}
239
240		/**
241		* Reset the database by rolling back all migrations.
242		*
243		* @return array
244		*/
245		public function reset()
246		{
247		$this->setUp();
248
249		$toRollback = $this->repository->getRanMigrations();
250
251		return $this->runRollback($toRollback);
252		}
253
254		/**
255		* Reset the database and run all migrations.
256		*
257		* @return array
258		*/
259		public function refresh()
260		{
261		$this->setUp();
262
263		$toRollback = $this->repository->getRanMigrations();
264
265		$this->runRollback($toRollback);
266
267		$pendingMigrations = $this->getPendingMigrations();
268
269		return $this->runPending($pendingMigrations);
270		}
271
272		/**
273		* Perform setup procedures for migrations.
274		*/
275		protected function setUp()
276		{
277		if (!$this->connection) {
278		$this->setConnection();
279		}
280
281		$this->createMigrationsRepository();
282
283		$this->makeDirectoryStructure($this->config->getAllDatabaseDirectories());
284		}
285
286		/**
287		* Set connection to database on object.
288		*
289		* @return Pdo
290		*/
291		public function setConnection()
292		{
293		$dbConfig = $this->config->get('database');
294
295		$this->connection = $this->resolver->getConnection($dbConfig);
		0 ignored issues – show Documentation Bug introduced 2017-03-02 22:16 UTC by Report Bug Copy Issue Report It seems like `$this->resolver->getConnection($dbConfig)` of type `object<Yarak\DB\Phalcon\Db\Adapter\Pdo>` is incompatible with the declared type `object<Yarak\Migrations\Phalcon\Db\Adapter\Pdo>` of property `$connection`. Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property. Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property.. Loading history...
296
297		$this->repository->setConnection($this->connection);
298
299		return $this;
300		}
301
302		/**
303		* Return the connection.
304		*
305		* @return Phalcon\Db\Adapter\Pdo
306		*/
307		public function getConnection()
308		{
309		return $this->connection;
310		}
311
312		/**
313		* Create the migrations table if it doesn't exist.
314		*/
315		public function createMigrationsRepository()
316		{
317		if (!$this->repository->exists()) {
318		$this->repository->create();
319		}
320
321		return $this;
322		}
323
324		/**
325		* Log a message.
326		*
327		* @param string $message
328		*/
329		protected function log($message)
330		{
331		$this->log[] = $message;
332		}
333
334		/**
335		* Return the object log.
336		*
337		* @return array
338		*/
339		public function getLog()
340		{
341		return $this->log;
342		}
343		}
344

zachleigh / yarak

Push — master ( a52247...91a49a )

Migrator::resolveMigrationClass() A

Complexity

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Duplication

Importance

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