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<?php |
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namespace crocodicstudio\crudbooster\helpers; |
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use Cache; |
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use DB; |
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use Illuminate\Support\Facades\Schema; |
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class DbInspector |
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{ |
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/** |
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* @param $table |
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* @return string |
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* @throws \Exception |
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*/ |
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public static function findPK(string $table): string |
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{ |
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if (! $table) { |
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return 'id'; |
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} |
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return cache()->remember('CrudBooster_pk_'.$table, 10, function () use ($table) { |
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return self::findPKname($table) ?: 'id'; |
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}); |
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} |
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/** |
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* @param $table |
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* @return array |
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*/ |
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private static function findPKname($table) |
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{ |
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$cols = \DB::getDoctrineSchemaManager()->listTableDetails($table)->getPrimaryKey()->getColumns(); |
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if (! empty($cols)) { |
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return $cols[0]; |
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} |
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} |
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/** |
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* @param $table |
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* @param $colName |
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* @return bool |
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*/ |
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public static function isNullableColumn($table, $colName) |
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{ |
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$colObj = \DB::getDoctrineSchemaManager()->listTableColumns($table)[$colName]; |
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if (! $colObj) { |
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return; |
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} |
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return ! $colObj->getNotnull(); |
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} |
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/** |
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* @param $columns |
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* @return string |
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*/ |
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public static function colName(array $columns): string |
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{ |
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$nameColCandidate = explode(',', cbConfig('NAME_FIELDS_CANDIDATE')); |
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foreach ($columns as $c) { |
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foreach ($nameColCandidate as $cc) { |
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if (strpos($c, $cc) !== false) { |
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return $c; |
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} |
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} |
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} |
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return 'id'; |
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} |
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/** |
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* @param $fieldName |
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* @return bool |
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*/ |
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public static function isForeignKey($fieldName) |
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{ |
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return Cache::rememberForever('crudbooster_isForeignKey_'.$fieldName, function () use ($fieldName) { |
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$table = self::getRelatedTableName($fieldName); |
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return ($table && Schema::hasTable($table)); |
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}); |
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} |
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public static function getRelatedTableName(string $fieldName): string |
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{ |
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if (starts_with($fieldName, 'id_') || ends_with($fieldName, '_id')) { |
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return str_replace(['_id', 'id_'], '', $fieldName); |
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} |
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return ''; |
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} |
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public static function listTables(): array |
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{ |
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return \DB::getDoctrineSchemaManager()->listTableNames(); |
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} |
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public static function getForeignKey($parentTable, $childTable): string |
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{ |
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$parentTable = CRUDBooster::parseSqlTable($parentTable)['table']; |
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$childTable = CRUDBooster::parseSqlTable($childTable)['table']; |
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if (\Schema::hasColumn($childTable, 'id_'.$parentTable)) { |
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return 'id_'.$parentTable; |
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} |
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return $parentTable.'_id'; |
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} |
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} |
crocodic-studio /
crudbooster
Let?s assume that you have a directory layout like this:
. |-- OtherDir | |-- Bar.php | `-- Foo.php `-- SomeDir `-- Foo.phpand let?s assume the following content of
Bar.php:If both files
OtherDir/Foo.phpandSomeDir/Foo.phpare loaded in the same runtime, you will see a PHP error such as the following:PHP Fatal error: Cannot use SomeDir\Foo as Foo because the name is already in use in OtherDir/Foo.phpHowever, as
OtherDir/Foo.phpdoes not necessarily have to be loaded and the error is only triggered if it is loaded beforeOtherDir/Bar.php, this problem might go unnoticed for a while. In order to prevent this error from surfacing, you must import the namespace with a different alias: