Complex classes like MigrateGenerateCommand often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use MigrateGenerateCommand, and based on these observations, apply Extract Interface, too.
1 | <?php namespace Xethron\MigrationsGenerator; |
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22 | class MigrateGenerateCommand extends GeneratorCommand { |
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23 | |||
24 | /** |
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25 | * The console command name. |
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26 | * @var string |
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27 | */ |
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28 | protected $name = 'migrate:generate'; |
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29 | |||
30 | /** |
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31 | * The console command description. |
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32 | * @var string |
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33 | */ |
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34 | protected $description = 'Generate a migration from an existing table structure.'; |
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35 | |||
36 | /** |
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37 | * @var \Way\Generators\Filesystem\Filesystem |
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38 | */ |
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39 | protected $file; |
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40 | |||
41 | /** |
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42 | * @var \Way\Generators\Compilers\TemplateCompiler |
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43 | */ |
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44 | protected $compiler; |
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45 | |||
46 | /** |
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47 | * @var \Illuminate\Database\Migrations\MigrationRepositoryInterface $repository |
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48 | */ |
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49 | protected $repository; |
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50 | |||
51 | /** |
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52 | * @var \Illuminate\Config\Repository $config |
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53 | */ |
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54 | protected $config; |
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55 | |||
56 | /** |
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57 | * @var \Xethron\MigrationsGenerator\Generators\SchemaGenerator |
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58 | */ |
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59 | protected $schemaGenerator; |
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60 | |||
61 | /** |
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62 | * Array of Fields to create in a new Migration |
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63 | * Namely: Columns, Indexes and Foreign Keys |
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64 | * @var array |
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65 | */ |
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66 | protected $fields = array(); |
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67 | |||
68 | /** |
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69 | * List of Migrations that has been done |
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70 | * @var array |
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71 | */ |
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72 | protected $migrations = array(); |
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73 | |||
74 | /** |
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75 | * @var bool |
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76 | */ |
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77 | protected $log = false; |
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78 | |||
79 | /** |
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80 | * @var int |
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81 | */ |
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82 | protected $batch; |
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83 | |||
84 | /** |
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85 | * Filename date prefix (Y_m_d_His) |
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86 | * @var string |
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87 | */ |
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88 | protected $datePrefix; |
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89 | |||
90 | /** |
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91 | * @var string |
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92 | */ |
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93 | protected $migrationName; |
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94 | |||
95 | /** |
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96 | * @var string |
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97 | */ |
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98 | protected $method; |
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99 | |||
100 | /** |
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101 | * @var string |
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102 | */ |
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103 | protected $table; |
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104 | |||
105 | /** |
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106 | * @var string|null |
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107 | */ |
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108 | protected $connection = null; |
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109 | |||
110 | /** |
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111 | * For create migrations so they all do not have the same date |
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112 | * @var int |
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113 | */ |
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114 | protected $secondCount = 1; |
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115 | |||
116 | /** |
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117 | * Array of ForeignKeys to create in a new Migration |
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118 | * Namely: Foreign Keys |
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119 | * @var array |
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120 | */ |
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121 | protected $foreignKeys = array(); |
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122 | |||
123 | /** @var bool // separate or combine the foreign keys to the table create */ |
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124 | protected $separateForeignKeysCreation = true; |
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125 | |||
126 | /** @var bool // empty the existing migrations */ |
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127 | protected $clearAllExistingMigrations = false; |
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128 | |||
129 | /** @var bool // should we check for table dependencies via foreign keys */ |
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130 | protected $checkForTableDependencies = false; |
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131 | |||
132 | /** |
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133 | * @param \Way\Generators\Generator $generator |
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134 | * @param \Way\Generators\Filesystem\Filesystem $file |
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135 | * @param \Way\Generators\Compilers\TemplateCompiler $compiler |
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136 | * @param \Illuminate\Database\Migrations\MigrationRepositoryInterface $repository |
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137 | * @param \Illuminate\Config\Repository $config |
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138 | */ |
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139 | public function __construct( |
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154 | |||
155 | /** |
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156 | * Execute the console command. Added for Laravel 5.5 |
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157 | * |
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158 | * @return void |
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159 | */ |
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160 | public function handle() |
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164 | |||
165 | /** |
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166 | * Execute the console command. |
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167 | * |
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168 | * @return void |
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169 | */ |
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170 | public function fire() |
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222 | |||
223 | /** |
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224 | * Make sure the migration date string is always different and sequential |
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225 | * @return false|string |
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226 | */ |
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227 | protected function getDatePrefix() |
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232 | |||
233 | /** |
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234 | * Check if we should clear all existing migrations, and if so, remove them |
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235 | */ |
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236 | protected function clearAllMigrations() |
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243 | |||
244 | /** |
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245 | * Ask for user input: Yes/No |
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246 | * @param string $question Question to ask |
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247 | * @return boolean Answer from user |
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248 | */ |
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249 | protected function askYn( $question ) { |
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256 | |||
257 | /** |
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258 | * Ask user for a Numeric Value, or blank for default |
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259 | * @param string $question Question to ask |
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260 | * @param int|float $default Default Value (optional) |
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261 | * @return int|float Answer |
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262 | */ |
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263 | protected function askNumeric( $question, $default = null ) { |
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281 | |||
282 | /** |
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283 | * Generate tables and index migrations. |
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284 | * |
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285 | * @param array $tables List of tables to create migrations for |
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286 | * @return void |
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287 | */ |
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288 | protected function generateTablesAndIndices( array $tables ) |
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304 | |||
305 | /** |
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306 | * Generate tables and index migrations while checking for table dependencies via foreign keys |
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307 | * |
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308 | * @param array $tables |
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309 | */ |
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310 | protected function generateTablesAndIndicesLookingForTableDependencies( array $tables ) |
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333 | |||
334 | /** |
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335 | * @param $table |
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336 | * @param Collection $tableWithFields |
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337 | */ |
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338 | protected function getDependencyTable($table, Collection &$tableWithFields) |
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339 | { |
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340 | if (!$tableWithFields->has($table)) { |
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341 | $fields = $this->schemaGenerator->getFields($table) ?: []; |
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342 | |||
343 | foreach ($fields as $field => $info) { |
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344 | if (substr($field, -3) === '_id') { |
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345 | $tableName = str_plural(substr($field, 0, -3)); |
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346 | $this->getDependencyTable($tableName, $tableWithFields); |
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347 | } |
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348 | } |
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349 | |||
350 | $tableWithFields->put($table, $fields); |
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351 | } |
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352 | } |
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353 | |||
354 | /** |
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355 | * Generate foreign key migrations. |
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356 | * |
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357 | * @param array $tables List of tables to create migrations for |
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358 | * @return void |
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359 | */ |
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360 | protected function generateForeignKeys( array $tables ) |
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372 | |||
373 | /** |
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374 | * Generate Migration for the current table. |
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375 | * |
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376 | * @return void |
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377 | */ |
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378 | protected function generate() |
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389 | |||
390 | /** |
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391 | * The path where the file will be created |
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392 | * |
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393 | * @return string |
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394 | */ |
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395 | protected function getFileGenerationPath() |
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403 | |||
404 | /** |
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405 | * Fetch the template data |
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406 | * |
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407 | * @return array |
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408 | */ |
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409 | protected function getTemplateData() |
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417 | |||
418 | /** |
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419 | * Separate the foreign keys from create migrations |
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420 | * |
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421 | * @return array |
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422 | */ |
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423 | protected function separateTableAndForeignKeys() |
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444 | |||
445 | /** |
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446 | * Combine the table migrations and foreign key creations |
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447 | * |
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448 | * @return array |
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449 | */ |
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450 | protected function combineTableAndForeignKeys() |
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468 | |||
469 | /** |
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470 | * Get path to template for generator |
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471 | * |
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472 | * @return string |
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473 | */ |
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474 | protected function getTemplatePath() |
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478 | |||
479 | /** |
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480 | * Get the console command arguments. |
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481 | * |
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482 | * @return array |
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483 | */ |
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484 | protected function getArguments() |
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490 | |||
491 | /** |
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492 | * Get the console command options. |
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493 | * |
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494 | * @return array |
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495 | */ |
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496 | protected function getOptions() |
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508 | |||
509 | /** |
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510 | * Remove all the tables to exclude from the array of tables |
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511 | * |
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512 | * @param array $tables |
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513 | * |
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514 | * @return array |
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515 | */ |
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516 | protected function removeExcludedTables( array $tables ) |
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523 | |||
524 | /** |
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525 | * Get a list of tables to exclude |
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526 | * |
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527 | * @return array |
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528 | */ |
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529 | protected function getExcludedTables() |
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539 | |||
540 | } |
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541 |
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..