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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20 | class MigrateGenerateCommand extends GeneratorCommand { |
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21 | |||
22 | /** |
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23 | * The console command name. |
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24 | * @var string |
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25 | */ |
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26 | protected $name = 'migrate:generate'; |
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27 | |||
28 | /** |
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29 | * The console command description. |
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30 | * @var string |
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31 | */ |
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32 | protected $description = 'Generate a migration from an existing table structure.'; |
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33 | |||
34 | /** |
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35 | * @var \Way\Generators\Filesystem\Filesystem |
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36 | */ |
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37 | protected $file; |
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38 | |||
39 | /** |
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40 | * @var \Way\Generators\Compilers\TemplateCompiler |
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41 | */ |
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42 | protected $compiler; |
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43 | |||
44 | /** |
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45 | * @var \Illuminate\Database\Migrations\MigrationRepositoryInterface $repository |
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46 | */ |
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47 | protected $repository; |
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48 | |||
49 | /** |
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50 | * @var \Illuminate\Config\Repository $config |
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51 | */ |
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52 | protected $config; |
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53 | |||
54 | /** |
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55 | * @var \Xethron\MigrationsGenerator\Generators\SchemaGenerator |
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56 | */ |
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57 | protected $schemaGenerator; |
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58 | |||
59 | /** |
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60 | * Array of Fields to create in a new Migration |
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61 | * Namely: Columns, Indexes and Foreign Keys |
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62 | * @var array |
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63 | */ |
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64 | protected $fields = array(); |
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65 | |||
66 | /** |
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67 | * List of Migrations that has been done |
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68 | * @var array |
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69 | */ |
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70 | protected $migrations = array(); |
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71 | |||
72 | /** |
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73 | * @var bool |
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74 | */ |
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75 | protected $log = false; |
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76 | |||
77 | /** |
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78 | * @var int |
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79 | */ |
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80 | protected $batch; |
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81 | |||
82 | /** |
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83 | * Filename date prefix (Y_m_d_His) |
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84 | * @var string |
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85 | */ |
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86 | protected $datePrefix; |
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87 | |||
88 | /** |
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89 | * @var string |
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90 | */ |
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91 | protected $migrationName; |
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92 | |||
93 | /** |
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94 | * @var string |
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95 | */ |
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96 | protected $method; |
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97 | |||
98 | /** |
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99 | * @var string |
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100 | */ |
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101 | protected $table; |
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102 | |||
103 | /** |
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104 | * @var string|null |
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105 | */ |
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106 | protected $connection = null; |
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107 | |||
108 | /** |
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109 | * @var bool |
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110 | */ |
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111 | protected $ignoreCreatedMigration = false; |
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112 | |||
113 | /** |
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114 | * @param \Way\Generators\Generator $generator |
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115 | * @param \Way\Generators\Filesystem\Filesystem $file |
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116 | * @param \Way\Generators\Compilers\TemplateCompiler $compiler |
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117 | * @param \Illuminate\Database\Migrations\MigrationRepositoryInterface $repository |
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118 | * @param \Illuminate\Config\Repository $config |
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119 | */ |
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120 | public function __construct( |
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135 | |||
136 | /** |
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137 | * Execute the console command. Added for Laravel 5.5 |
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138 | * |
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139 | * @return void |
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140 | */ |
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141 | public function handle() |
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145 | |||
146 | /** |
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147 | * Execute the console command. |
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148 | * |
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149 | * @return void |
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150 | */ |
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151 | public function fire() |
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200 | |||
201 | /** |
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202 | * Ask for user input: Yes/No |
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203 | * @param string $question Question to ask |
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204 | * @return boolean Answer from user |
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205 | */ |
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206 | protected function askYn( $question ) { |
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213 | |||
214 | /** |
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215 | * Ask user for a Numeric Value, or blank for default |
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216 | * @param string $question Question to ask |
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217 | * @param int|float $default Default Value (optional) |
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218 | * @return int|float Answer |
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219 | */ |
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220 | protected function askNumeric( $question, $default = null ) { |
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238 | |||
239 | /** |
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240 | * Generate tables and index migrations. |
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241 | * |
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242 | * @param array $tables List of tables to create migrations for |
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243 | * @return void |
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244 | */ |
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245 | protected function generateTablesAndIndices( array $tables ) |
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263 | |||
264 | /**Return a substring between 2 strings |
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265 | * @param $string |
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266 | * @param $start |
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267 | * @param $end |
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268 | * @param bool $trim |
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269 | * @return false|string |
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270 | */ |
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271 | public function getStringBetween($string, $start, $end, $trim = true) { |
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280 | |||
281 | /**Check if migration for table already exists |
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282 | * @param $table |
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283 | * @param string $prefix |
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284 | * @param string $suffix |
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285 | * @return bool |
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286 | */ |
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287 | protected function migrationExist($table, $prefix = 'create_', $suffix = '_table') |
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303 | |||
304 | /** |
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305 | * Generate foreign key migrations. |
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306 | * |
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307 | * @param array $tables List of tables to create migrations for |
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308 | * @return void |
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309 | */ |
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310 | protected function generateForeignKeys( array $tables ) |
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331 | |||
332 | /** |
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333 | * Generate Migration for the current table. |
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334 | * |
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335 | * @return void |
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336 | */ |
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337 | protected function generate() |
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348 | |||
349 | /** |
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350 | * The path where the file will be created |
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351 | * |
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352 | * @return string |
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353 | */ |
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354 | protected function getFileGenerationPath() |
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362 | |||
363 | /** |
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364 | * Get the date prefix for the migration. |
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365 | * |
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366 | * @return string |
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367 | */ |
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368 | protected function getDatePrefix() |
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372 | |||
373 | /** |
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374 | * Fetch the template data |
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375 | * |
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376 | * @return array |
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377 | */ |
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378 | protected function getTemplateData() |
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396 | |||
397 | /** |
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398 | * Get path to template for generator |
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399 | * |
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400 | * @return string |
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401 | */ |
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402 | protected function getTemplatePath() |
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406 | |||
407 | /** |
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408 | * Get the console command arguments. |
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409 | * |
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410 | * @return array |
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411 | */ |
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412 | protected function getArguments() |
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418 | |||
419 | /** |
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420 | * Get the console command options. |
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421 | * |
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422 | * @return array |
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423 | */ |
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424 | protected function getOptions() |
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437 | |||
438 | /** |
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439 | * Remove all the tables to exclude from the array of tables |
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440 | * |
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441 | * @param array $tables |
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442 | * |
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443 | * @return array |
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444 | */ |
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445 | protected function removeExcludedTables( array $tables ) |
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452 | |||
453 | /** |
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454 | * Get a list of tables to exclude |
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455 | * |
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456 | * @return array |
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457 | */ |
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458 | protected function getExcludedTables() |
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468 | |||
469 | } |
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470 |
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..