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<?php |
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namespace suda\application\database; |
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use suda\application\exception\ConfigurationException; |
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use suda\orm\statement\QueryAccess; |
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use suda\orm\struct\QueryStatement; |
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/** |
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* 语句读取 |
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* 从模块资源文件中读取SQL语句构建查询对象 |
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* @package suda\application\database |
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*/ |
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class QueryStatementBuilder |
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{ |
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/** |
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* 查询配置 |
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* @var array |
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*/ |
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protected $config; |
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/** |
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* 查询操作 |
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* @var QueryAccess |
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*/ |
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protected $access; |
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/** |
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* QueryStatementBuilder constructor. |
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* @param QueryAccess $access |
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* @param array $config |
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*/ |
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public function __construct(QueryAccess $access, array $config = []) |
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{ |
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$this->config = $config; |
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$this->access = $access; |
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} |
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/** |
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* @return QueryStatement |
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*/ |
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public function build():QueryStatement |
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{ |
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$query = new QueryStatement($this->access, $this->getQuery()); |
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return $this->modifyQueryStatement($query); |
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} |
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/** |
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* 获取查询 |
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* @return string |
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*/ |
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protected function getQuery() |
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{ |
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if (array_key_exists('query', $this->config)) { |
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$query = $this->config['query']; |
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if (is_array($query)) { |
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$type = $this->access->getConnection()->getType(); |
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if (array_key_exists($type, $query)) { |
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return $query[$type]; |
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} |
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throw new ConfigurationException( |
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sprintf("missing config query:%s", $type), |
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ConfigurationException::ERR_MISSING_CONFIG |
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); |
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} |
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return $query; |
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} |
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throw new ConfigurationException('missing config query', ConfigurationException::ERR_MISSING_CONFIG); |
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} |
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/** |
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* 修饰查询 |
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* @param QueryStatement $statement |
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* @return QueryStatement |
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*/ |
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protected function modifyQueryStatement(QueryStatement $statement):QueryStatement |
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{ |
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$type = $this->config['type'] ?? 'read'; |
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if (in_array($type, ['read','write'])) { |
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$statement->setType($type === 'read'?QueryStatement::READ:QueryStatement::WRITE); |
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} |
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if (array_key_exists('return-type', $this->config)) { |
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$statement->setReturnType($this->config['return-type']); |
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} |
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if (array_key_exists('with-key', $this->config)) { |
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$statement->withKey($this->config['with-key']); |
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} |
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if (array_key_exists('scroll', $this->config)) { |
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$statement->setScroll($this->config['scroll']); |
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} |
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return $statement; |
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} |
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} |
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dxkite /
suda
