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Файл: vendor/doctrine/dbal/lib/Doctrine/DBAL/Sharding/SQLAzure/SQLAzureFederationsSynchronizer.php
Строк: 316
<?php

namespace DoctrineDBALShardingSQLAzure;

use 
Closure;
use 
DoctrineDBALConnection;
use 
DoctrineDBALSchemaSchema;
use 
DoctrineDBALSchemaSynchronizerAbstractSchemaSynchronizer;
use 
DoctrineDBALSchemaSynchronizerSchemaSynchronizer;
use 
DoctrineDBALSchemaSynchronizerSingleDatabaseSynchronizer;
use 
DoctrineDBALTypesType;
use 
DoctrineDBALTypesTypes;
use 
RuntimeException;

use function 
array_merge;

/**
 * SQL Azure Schema Synchronizer.
 *
 * Will iterate over all shards when performing schema operations. This is done
 * by partitioning the passed schema into subschemas for the federation and the
 * global database and then applying the operations step by step using the
 * {@see DoctrineDBALSchemaSynchronizerSingleDatabaseSynchronizer}.
 *
 * @deprecated
 */
class SQLAzureFederationsSynchronizer extends AbstractSchemaSynchronizer
{
    public const 
FEDERATION_TABLE_FEDERATED   'azure.federated';
    public const 
FEDERATION_DISTRIBUTION_NAME 'azure.federatedOnDistributionName';

    
/** @var SQLAzureShardManager */
    
private $shardManager;

    
/** @var SchemaSynchronizer */
    
private $synchronizer;

    public function 
__construct(Connection $connSQLAzureShardManager $shardManager, ?SchemaSynchronizer $sync null)
    {
        
parent::__construct($conn);
        
$this->shardManager $shardManager;
        
$this->synchronizer $sync ?: new SingleDatabaseSynchronizer($conn);
    }

    
/**
     * {@inheritdoc}
     */
    
public function getCreateSchema(Schema $createSchema)
    {
        
$sql = [];

        [
$global$federation] = $this->partitionSchema($createSchema);

        
$globalSql $this->synchronizer->getCreateSchema($global);
        if (
$globalSql) {
            
$sql[] = "-- Create Root Federationn" .
                     
'USE FEDERATION ROOT WITH RESET;';
            
$sql   array_merge($sql$globalSql);
        }

        
$federationSql $this->synchronizer->getCreateSchema($federation);

        if (
$federationSql) {
            
$defaultValue $this->getFederationTypeDefaultValue();

            
$sql[] = $this->getCreateFederationStatement();
            
$sql[] = 'USE FEDERATION ' $this->shardManager->getFederationName()
                . 
' (' $this->shardManager->getDistributionKey() . ' = ' $defaultValue ')'
                
' WITH RESET, FILTERING = OFF;';
            
$sql   array_merge($sql$federationSql);
        }

        return 
$sql;
    }

    
/**
     * {@inheritdoc}
     */
    
public function getUpdateSchema(Schema $toSchema$noDrops false)
    {
        return 
$this->work($toSchema, static function ($synchronizer$schema) use ($noDrops) {
            return 
$synchronizer->getUpdateSchema($schema$noDrops);
        });
    }

    
/**
     * {@inheritdoc}
     */
    
public function getDropSchema(Schema $dropSchema)
    {
        return 
$this->work($dropSchema, static function ($synchronizer$schema) {
            return 
$synchronizer->getDropSchema($schema);
        });
    }

    
/**
     * {@inheritdoc}
     */
    
public function createSchema(Schema $createSchema)
    {
        
$this->processSql($this->getCreateSchema($createSchema));
    }

    
/**
     * {@inheritdoc}
     */
    
public function updateSchema(Schema $toSchema$noDrops false)
    {
        
$this->processSql($this->getUpdateSchema($toSchema$noDrops));
    }

    
/**
     * {@inheritdoc}
     */
    
public function dropSchema(Schema $dropSchema)
    {
        
$this->processSqlSafely($this->getDropSchema($dropSchema));
    }

    
/**
     * {@inheritdoc}
     */
    
public function getDropAllSchema()
    {
        
$this->shardManager->selectGlobal();
        
$globalSql $this->synchronizer->getDropAllSchema();

        
$sql = [];

        if (
$globalSql) {
            
$sql[] = "-- Work on Root FederationnUSE FEDERATION ROOT WITH RESET;";
            
$sql   array_merge($sql$globalSql);
        }

        
$shards $this->shardManager->getShards();
        foreach (
$shards as $shard) {
            
$this->shardManager->selectShard($shard['rangeLow']);

            
$federationSql $this->synchronizer->getDropAllSchema();
            if (! 
$federationSql) {
                continue;
            }

            
$sql[] = '-- Work on Federation ID ' $shard['id'] . "n" .
                     
'USE FEDERATION ' $this->shardManager->getFederationName()
                . 
' (' $this->shardManager->getDistributionKey() . ' = ' $shard['rangeLow'] . ')'
                
' WITH RESET, FILTERING = OFF;';
            
$sql   array_merge($sql$federationSql);
        }

        
$sql[] = 'USE FEDERATION ROOT WITH RESET;';
        
$sql[] = 'DROP FEDERATION ' $this->shardManager->getFederationName();

        return 
$sql;
    }

    
/**
     * {@inheritdoc}
     */
    
public function dropAllSchema()
    {
        
$this->processSqlSafely($this->getDropAllSchema());
    }

    
/**
     * @return Schema[]
     */
    
private function partitionSchema(Schema $schema)
    {
        return [
            
$this->extractSchemaFederation($schemafalse),
            
$this->extractSchemaFederation($schematrue),
        ];
    }

    
/**
     * @param bool $isFederation
     *
     * @return Schema
     *
     * @throws RuntimeException
     */
    
private function extractSchemaFederation(Schema $schema$isFederation)
    {
        
$partitionedSchema = clone $schema;

        foreach (
$partitionedSchema->getTables() as $table) {
            if (
$isFederation) {
                
$table->addOption(self::FEDERATION_DISTRIBUTION_NAME$this->shardManager->getDistributionKey());
            }

            if (
$table->hasOption(self::FEDERATION_TABLE_FEDERATED) !== $isFederation) {
                
$partitionedSchema->dropTable($table->getName());
            } else {
                foreach (
$table->getForeignKeys() as $fk) {
                    
$foreignTable $schema->getTable($fk->getForeignTableName());
                    if (
$foreignTable->hasOption(self::FEDERATION_TABLE_FEDERATED) !== $isFederation) {
                        throw new 
RuntimeException('Cannot have foreign key between global/federation.');
                    }
                }
            }
        }

        return 
$partitionedSchema;
    }

    
/**
     * Work on the Global/Federation based on currently existing shards and
     * perform the given operation on the underlying schema synchronizer given
     * the different partitioned schema instances.
     *
     * @return string[]
     */
    
private function work(Schema $schemaClosure $operation)
    {
        [
$global$federation] = $this->partitionSchema($schema);
        
$sql                   = [];

        
$this->shardManager->selectGlobal();
        
$globalSql $operation($this->synchronizer$global);

        if (
$globalSql) {
            
$sql[] = "-- Work on Root FederationnUSE FEDERATION ROOT WITH RESET;";
            
$sql   array_merge($sql$globalSql);
        }

        
$shards $this->shardManager->getShards();

        foreach (
$shards as $shard) {
            
$this->shardManager->selectShard($shard['rangeLow']);

            
$federationSql $operation($this->synchronizer$federation);
            if (! 
$federationSql) {
                continue;
            }

            
$sql[] = '-- Work on Federation ID ' $shard['id'] . "n"
                
'USE FEDERATION ' $this->shardManager->getFederationName()
                . 
' (' $this->shardManager->getDistributionKey() . ' = ' $shard['rangeLow'] . ')'
                
' WITH RESET, FILTERING = OFF;';
            
$sql   array_merge($sql$federationSql);
        }

        return 
$sql;
    }

    
/**
     * @return string
     */
    
private function getFederationTypeDefaultValue()
    {
        
$federationType Type::getType($this->shardManager->getDistributionType());

        switch (
$federationType->getName()) {
            case 
Types::GUID:
                
$defaultValue '00000000-0000-0000-0000-000000000000';
                break;
            case 
Types::INTEGER:
            case 
Types::SMALLINT:
            case 
Types::BIGINT:
                
$defaultValue '0';
                break;
            default:
                
$defaultValue '';
                break;
        }

        return 
$defaultValue;
    }

    
/**
     * @return string
     */
    
private function getCreateFederationStatement()
    {
        
$federationType    Type::getType($this->shardManager->getDistributionType());
        
$federationTypeSql $federationType->getSQLDeclaration([], $this->conn->getDatabasePlatform());

        return 
"--Create Federationn"
            
'CREATE FEDERATION ' $this->shardManager->getFederationName()
            . 
' (' $this->shardManager->getDistributionKey()
            . 
' ' $federationTypeSql '  RANGE)';
    }
}
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