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<?php |
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/** |
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* Created by PhpStorm. |
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* User: liow.kitloong |
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* Date: 2020/04/07 |
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*/ |
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namespace KitLoong\MigrationsGenerator\Repositories; |
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use Illuminate\Support\Collection; |
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use KitLoong\MigrationsGenerator\MigrationsGeneratorSetting; |
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class PgSQLRepository |
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{ |
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public function getTypeByColumnName(string $table, string $columnName): ?string |
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{ |
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/** @var MigrationsGeneratorSetting $setting */ |
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$setting = app(MigrationsGeneratorSetting::class); |
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$column = $setting->getConnection() |
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->select(" |
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SELECT pg_catalog.format_type(a.atttypid, a.atttypmod) as datatype |
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FROM |
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pg_catalog.pg_attribute a |
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WHERE |
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a.attnum > 0 |
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AND NOT a.attisdropped |
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AND a.attrelid = ( |
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SELECT c.oid |
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FROM pg_catalog.pg_class c |
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LEFT JOIN pg_catalog.pg_namespace n ON n.oid = c.relnamespace |
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WHERE c.relname ~ '^(${table})$' |
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AND pg_catalog.pg_table_is_visible(c.oid) |
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) |
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AND a.attname='${columnName}'"); |
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if (count($column) > 0) { |
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return $column[0]->datatype; |
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} |
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return null; |
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} |
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public function getCheckConstraintDefinition(string $table, string $column): ?string |
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{ |
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$setting = app(MigrationsGeneratorSetting::class); |
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$column = $setting->getConnection() |
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->select(" |
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SELECT pgc.conname AS constraint_name, |
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pgc.contype, |
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ccu.table_schema AS table_schema, |
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ccu.table_name, |
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ccu.column_name, |
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pgc.consrc AS definition |
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FROM pg_constraint pgc |
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JOIN pg_namespace nsp ON nsp.oid = pgc.connamespace |
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JOIN pg_class cls ON pgc.conrelid = cls.oid |
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LEFT JOIN information_schema.constraint_column_usage ccu |
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ON pgc.conname = ccu.constraint_name |
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AND nsp.nspname = ccu.constraint_schema |
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WHERE contype ='c' |
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AND ccu.table_name='${table}' |
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AND ccu.column_name='${column}'; |
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"); |
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if (count($column) > 0) { |
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return $column[0]->definition; |
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} |
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return null; |
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} |
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public function getSpatialIndexNames(string $table): Collection |
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{ |
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$setting = app(MigrationsGeneratorSetting::class); |
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$columns = $setting->getConnection() |
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->select(" |
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SELECT tablename, |
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indexname, |
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indexdef |
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FROM pg_indexes |
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WHERE tablename = '${table}' |
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AND indexdef LIKE '% USING gist %'"); |
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$definitions = collect([]); |
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if (count($columns) > 0) { |
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foreach ($columns as $column) { |
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$definitions->push($column->indexname); |
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} |
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} |
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return $definitions; |
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} |
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} |
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kitloong /
laravel-migrations-generator
