DatabaseSchema::getManager() - Code Metrics - Inspection of "Merge pull request #5476 from Laravel-Backpack/upd..." - Laravel-Backpack/CRUD - Measure and Improve Code Quality continuously with Scrutinizer

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by Pedro

created 2024-03-18 15:36 UTC

DatabaseSchema::getManager() A

↳ Parent: DatabaseSchema

Complexity

Conditions	2
Paths	1

Size

Total Lines	5
Code Lines	2

Duplication

Lines	0
Ratio	0 %

Importance

Changes

Metric	Value
cc	2
eloc	2
nc	1
nop	1
dl	0
loc	5
rs	10
c	0
b	0
f	0

<?php

namespace Backpack\CRUD\app\Library\Database;

use Illuminate\Support\Facades\DB;
use Illuminate\Support\LazyCollection;

final class DatabaseSchema
{
    private static $schema;

    /**
     * Return the schema for the table.
     */
    public static function getForTable(string $connection, string $table)
    {
        $connection = $connection ?: config('database.default');

        self::generateDatabaseSchema($connection);

        return self::$schema[$connection][$table] ?? null;
    }

    public static function getTables(string $connection = null): array
    {
        $connection = $connection ?: config('database.default');
        self::generateDatabaseSchema($connection);

        return self::$schema[$connection] ?? [];
    }

    public function listTableColumnsNames(string $connection, string $table)
    {
        $table = self::getForTable($connection, $table);

        return array_keys($table->getColumns());
    }

    public function listTableIndexes(string $connection, string $table)
    {
        return self::getIndexColumnNames($connection, $table);
    }

    public function getManager(string $connection = null)
    {
        $connection = $connection ?: config('database.default');

        return self::getSchemaManager($connection);
    }

    /**
     * Generates and store the database schema.
     */
    private static function generateDatabaseSchema(string $connection)
    {
        if (! isset(self::$schema[$connection])) {
            self::$schema[$connection] = self::mapTables($connection);
        }
    }

    /**
     * Map the tables from raw db values into an usable array.
     *
     * @param  string  $connection
     * @return array
     */
    private static function mapTables(string $connection)
    {
        return LazyCollection::make(self::getCreateSchema($connection)->getTables())->mapWithKeys(function ($table, $key) use ($connection) {
        return LazyCollection::make(self::getCreateSchema($connection)->getTables())->mapWithKeys(function ($table, /** @scrutinizer ignore-unused */ $key) use ($connection) {
            $tableName = is_array($table) ? $table['name'] : $table->getName();

            if (self::$schema[$connection][$tableName] ?? false) {
                return [$tableName => self::$schema[$connection][$tableName]];
            }

            if (is_array($table)) {
                $table = new Table($tableName, self::mapTableColumns($connection, $tableName));
            }

            return [$tableName => $table];
        })->toArray();
    }

    private static function getIndexColumnNames(string $connection, string $table)
    {
        $schemaManager = self::getSchemaManager($connection);
        $indexes = method_exists($schemaManager, 'listTableIndexes') ? $schemaManager->listTableIndexes($table) : $schemaManager->getIndexes($table);
        $indexes = method_exists($schemaManager, 'listTableIndexes') ? $schemaManager->listTableIndexes($table) : $schemaManager->/** @scrutinizer ignore-call */ getIndexes($table);

        $indexes = array_map(function ($index) {
            return is_array($index) ? $index['columns'] : $index->getColumns();
        }, $indexes);

        $indexes = \Illuminate\Support\Arr::flatten($indexes);

        return array_unique($indexes);
    }

    private static function mapTableColumns(string $connection, string $table)
    {
        $indexedColumns = self::getIndexColumnNames($connection, $table);

        return LazyCollection::make(self::getSchemaManager($connection)->getColumns($table))->mapWithKeys(function ($column, $key) use ($indexedColumns) {
        return LazyCollection::make(self::getSchemaManager($connection)->getColumns($table))->mapWithKeys(function ($column, /** @scrutinizer ignore-unused */ $key) use ($indexedColumns) {
            $column['index'] = array_key_exists($column['name'], $indexedColumns) ? true : false;

            return [$column['name'] => $column];
        })->toArray();
    }

    private static function getCreateSchema(string $connection)
    {
        $schemaManager = self::getSchemaManager($connection);

        return method_exists($schemaManager, 'createSchema') ? $schemaManager->createSchema() : $schemaManager;
        return method_exists($schemaManager, 'createSchema') ? /** @scrutinizer ignore-deprecated */ $schemaManager->createSchema() : $schemaManager;
    }

    private static function dbalTypes()
    {
        return [
            'enum' => \Doctrine\DBAL\Types\Types::STRING,
            'jsonb' => \Doctrine\DBAL\Types\Types::JSON,
            'geometry' => \Doctrine\DBAL\Types\Types::STRING,
            'point' => \Doctrine\DBAL\Types\Types::STRING,
            'lineString' => \Doctrine\DBAL\Types\Types::STRING,
            'polygon' => \Doctrine\DBAL\Types\Types::STRING,
            'multiPoint' => \Doctrine\DBAL\Types\Types::STRING,
            'multiLineString' => \Doctrine\DBAL\Types\Types::STRING,
            'multiPolygon' => \Doctrine\DBAL\Types\Types::STRING,
            'geometryCollection' => \Doctrine\DBAL\Types\Types::STRING,
        ];
    }

    private static function getSchemaManager(string $connection)
    {
        $connection = DB::connection($connection);

        if (method_exists($connection, 'getDoctrineSchemaManager')) {
            foreach (self::dbalTypes() as $key => $value) {
                $connection->getDoctrineSchemaManager()->getDatabasePlatform()->registerDoctrineTypeMapping($key, $value);
                /** @scrutinizer ignore-deprecated */ $connection->getDoctrineSchemaManager()->getDatabasePlatform()->registerDoctrineTypeMapping($key, $value);
            }

            return $connection->getDoctrineSchemaManager();
        }

        return $connection->getSchemaBuilder();
    }
}


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DatabaseSchema::getManager() A

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