70 lines
1.5 KiB
PHP
70 lines
1.5 KiB
PHP
<?php namespace Laravel\DB;
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class Compiler {
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/**
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* Compile a SQL SELECT statment from a Query instance.
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*
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* @param Query $query
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* @return string
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*/
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public function select(Query $query)
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{
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$sql = $query->select.' '.$query->from.' '.$query->where;
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if ( ! is_null($query->order)) $sql .= ' '.$query->order;
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if ( ! is_null($query->limit)) $sql .= ' '.$query->limit;
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if ( ! is_null($query->offset)) $sql .= ' '.$query->offset;
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return $sql;
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}
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/**
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* Compile a SQL INSERT statment from a Query instance.
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*
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* @param Query $query
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* @param array $values
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* @return string
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*/
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public function insert(Query $query, $values)
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{
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$sql = 'INSERT INTO '.$query->wrap($query->table);
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$columns = array_map(array($query, 'wrap'), array_keys($values));
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return $sql .= ' ('.implode(', ', $columns).') VALUES ('.$query->parameterize($values).')';
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}
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/**
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* Compile a SQL UPDATE statment from a Query instance.
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*
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* @param Query $query
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* @param array $values
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* @return string
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*/
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public function update(Query $query, $values)
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{
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$sql = 'UPDATE '.$query->wrap($query->table).' SET ';
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foreach (array_keys($values) as $column)
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{
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$sets[] = $query->wrap($column).' = ?';
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}
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return $sql.implode(', ', $sets).' '.$query->where;
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}
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/**
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* Compile a SQL DELETE statment from a Query instance.
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*
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* @param Query $query
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* @return string
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*/
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public function delete(Query $query)
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{
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return 'DELETE FROM '.$query->wrap($query->table).' '.$query->where;
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}
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} |