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<?php |
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/** |
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* The Query builder API. |
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* |
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* @author RN Kushwaha <[email protected]> |
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* @since v0.0.1 <Date: 16th April, 2019> |
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*/ |
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namespace Dolphin\Builders; |
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use Dolphin\Parsers\WhereQueryParser; |
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/** |
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* This class provides the mechanism to build the Where Queries. |
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*/ |
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class WhereQueryBuilder extends QueryBuilder |
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{ |
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private $qb; |
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public function __construct(){ |
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$this->qb = new QueryBuilder(); |
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} |
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private function buildWhereInClauseQuery($terms = []) |
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{ |
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if (is_int($terms[0])) { |
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$dataStr = join(',', $terms); |
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return $dataStr; |
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} elseif (is_string($terms[0])) { |
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$dataStr = join("', '", $terms); |
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$dataStr = "'".$dataStr."'"; |
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return $dataStr; |
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} |
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return null; |
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} |
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private function whereAddedCondition($conditions = []){ |
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return $this->whereAdded === false && count($conditions); |
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} |
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public function buildWhereQuery($conditions = []) |
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{ |
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$whereQuery = []; |
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if (count($conditions)<=0) { |
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return []; |
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} |
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$firstTime = true; |
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if ($this->whereAddedCondition($conditions)) { |
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$whereQuery[] = 'WHERE'; |
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$this->whereAdded = true; |
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} |
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foreach ($conditions as $where) { |
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$sign = '='; |
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$whereQueryPart = 'AND '; |
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if(count($where)==3) { |
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$sign = $where[1]; |
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} |
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if ($firstTime) { |
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$whereQueryPart = ''; |
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$firstTime = false; |
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} |
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$whereQuery[] = $whereQueryPart.$this->qb->quote(trim($where[0])).' '.$sign.' '.$this->qb->enclose(end($where)); |
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} |
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return $whereQuery; |
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} |
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public function buildWhereRawQuery($conditions = [], $query = []) |
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{ |
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$whereRawQuery = []; |
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if (count($conditions)<=0) { |
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return $query; |
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} |
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$firstTime = true; |
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if ($this->whereAddedCondition($conditions)) { |
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$whereRawQuery[] = 'WHERE'; |
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$this->whereAdded = true; |
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} |
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foreach ($conditions as $whereRaw) { |
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$whereRawQueryPart = 'AND '; |
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if ($firstTime === true) { |
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$whereRawQueryPart = ''; |
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$firstTime = false; |
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} |
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$whereRawQuery[] = $whereRawQueryPart.$whereRaw; |
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} |
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if (count($whereRawQuery)) { |
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$query = array_merge($query, $whereRawQuery); |
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} |
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return $query; |
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} |
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private function buildWhereInNotInQuery($conditions = [], $queryParam='IN') |
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{ |
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$query = []; |
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if (count($conditions)<=0) { |
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return $query; |
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} |
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$firstTime = false; |
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if ($this->whereAdded === false) { |
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$query[] = 'WHERE'; |
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$firstTime = true; |
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$this->whereAdded = true; |
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} |
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foreach ($conditions as $whereIn) { |
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$dataStr = $this->buildWhereInClauseQuery($whereIn[1]); |
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$queryPart = 'AND '; |
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if ($dataStr === null) { |
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continue; |
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} |
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if ($firstTime) { |
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$queryPart = ''; |
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$firstTime = false; |
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} |
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$query[] = $queryPart.trim($whereIn[0]).' '.$queryParam.' ('.$dataStr.')'; |
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} |
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return $query; |
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} |
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public function buildWhereInQuery($conditions = []) |
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{ |
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return $this->buildWhereInNotInQuery($conditions, 'IN'); |
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} |
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public function buildWhereNotInQuery($conditions = []) |
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{ |
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return $this->buildWhereInNotInQuery($conditions, 'NOT IN'); |
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} |
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private function buildWhereNullNotNullQuery($conditions = [], $query = [], $queryParam = 'IS NULL') |
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{ |
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$whereQuery = []; |
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if (count($conditions)<=0) { |
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return $query; |
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} |
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$firstTime = false; |
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if ($this->whereAdded === false) { |
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$whereQuery[] = 'WHERE'; |
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$firstTime = true; |
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$this->whereAdded = true; |
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} |
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foreach ($conditions as $whereNull) { |
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$whereQueryPart = 'AND '; |
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if ($firstTime) { |
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$whereQueryPart = ''; |
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$firstTime = false; |
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} |
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$whereQuery[] = $whereQueryPart.trim($whereNull).' '.$queryParam; |
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} |
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if (count($whereQuery)) { |
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$query = array_merge($query, $whereQuery); |
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} |
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return $query; |
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} |
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public function buildWhereNullQuery($conditions = [], $query = []) |
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{ |
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return $this->buildWhereNullNotNullQuery($conditions, $query, 'IS NULL'); |
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} |
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public function buildWhereNotNullQuery($conditions = [], $query = []) |
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{ |
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return $this->buildWhereNullNotNullQuery($conditions, $query, 'IS NOT NULL'); |
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} |
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public function buildAllWhereQuery($where, $whereRaw, $whereIn, $whereNotIn, $whereNull, $whereNotNull, $mainQuery = []) |
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{ |
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$query = $this->buildWhereQuery($where); |
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$query = $this->buildWhereRawQuery($whereRaw, $query); |
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$whereInQuery = $this->buildWhereInQuery($whereIn); |
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if (count($whereInQuery)) { |
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$query = array_merge($query, $whereInQuery); |
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} |
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$whereNotInQuery = $this->buildWhereNotInQuery($whereNotIn); |
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if (count($whereNotInQuery)) { |
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$query = array_merge($query, $whereNotInQuery); |
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} |
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$query = $this->buildWhereNullQuery($whereNull, $query); |
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$query = $this->buildWhereNotNullQuery($whereNotNull, $query); |
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if (count($query)) { |
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$mainQuery = array_merge($mainQuery, $query); |
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} |
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return $mainQuery; |
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} |
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} |
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