58 lines
1.2 KiB
PHP
58 lines
1.2 KiB
PHP
<?php
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namespace Ulmus\Query;
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class Select extends Fragment {
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const FIELD_AS = "%s as %s";
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public int $order = -100;
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public bool $distinct = false;
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public bool $union = false;
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public bool $isInternalSelect = false;
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public ? int $top = null;
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protected array $fields = [];
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const SQL_TOKEN = "SELECT";
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public function set($fields) : self
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{
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$this->fields = is_array($fields) ? $fields : [ $fields ];
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return $this;
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}
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public function add($fields) : self
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{
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if ( is_array($fields) ) {
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$this->fields = array_merge($this->fields, $fields);
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}
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else {
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$this->fields[] = $fields;
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}
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return $this;
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}
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public function render() : string
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{
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foreach($this->fields as $key => &$value) {
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if ( ! is_numeric($key) ) {
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$value = sprintf(static::FIELD_AS, $value, $key);
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}
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}
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return $this->renderSegments([
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( $this->union ? 'UNION' : false ),
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static::SQL_TOKEN,
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( $this->distinct ? 'DISTINCT' : false ),
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( $this->top ? sprintf('TOP (%s)', $this->top) : false ),
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implode(', ', $this->fields)
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]);
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}
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}
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