95 lines
2.8 KiB
PHP
95 lines
2.8 KiB
PHP
<?php
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namespace MVC\Database\Request;
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//TODO: Split in traits
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//TODO: Add INTO
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//TODO: Add UNION
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use Krutush\Database\DatabaseException;
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class Select extends Data{
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protected $fields;
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protected $table;
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protected $where;
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protected $group;
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protected $order;
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protected $limit;
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protected $offset;
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protected $joins;
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public function fields(array $fields = null, bool $add = false): Select{
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$this->fields = $add ? array_merge($this->fields, $fields) : $fields;
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return $this;
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}
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public function from(string $table, bool $add = false): Select{
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$this->table = ($add && $this->table ? $this->table.', ' : '').$table;
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return $this;
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}
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public function join(string $joins, string $type = 'INNER', bool $add = false): Select{
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if(!in_array($type, array('INNER', 'LEFT', 'RIGHT')))
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throw new DatabaseException('Unknown JOIN type');
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$this->joins = ($add && $this->joins ? $this->joins."\n" : '').$type.' JOIN '.$joins;
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return $this;
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}
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public function where(string $where, bool $add = false): Select{
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$this->where = $add && $this->where ? '('.$this->where.') AND ('.$where.')' : $where;
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return $this;
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}
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public function groupby(string $group): Select{
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$this->group = $group;
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return $this;
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}
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public function orderby(string $order): Select{
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$this->order = $order;
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return $this;
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}
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public function limit(string $limit): Select{
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$this->limit = $limit;
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return $this;
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}
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public function offset(string $offset): Select{
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$this->offset = $offset;
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return $this;
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}
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public function sql(){
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if(!isset($this->table))
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throw new DatabaseException('Any table set');
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$fields = '*';
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if(isset($this->fields)){
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$numItems = count($this->fields);
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$i = 0;
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$fields = '';
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foreach($this->fields as $key => $value){
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$fields .= $value;
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if(is_string($key))
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$fields .= ' '.$key;
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if(++$i !== $numItems) //Not last
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$fields .= ', ';
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}
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}
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$sql = 'SELECT '.$fields.
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"\n".'FROM '.$this->table.
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($this->joins ? ("\n".$this->joins) : '').
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($this->where ? ("\n".'WHERE '.$this->where) : '').
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($this->group ? ("\n".'GROUP BY '.$this->group) : '').
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($this->order ? ("\n".'ORDER BY '.$this->order) : '').
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($this->limit ? ("\n".'LIMIT '.$this->limit) : '').
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($this->offset ? (($this->limit ? '' : "\n".'LIMIT 18446744073709551615').' OFFSET '.$this->offset) : '');
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return $sql;
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}
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public function run(array $values = null){
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return parent::execute($this->sql(), $values);
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}
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} |