<?php
/*
* ========================================================================
* Copyright (c) 2011 Vladislav "FractalizeR" Rastrusny
* Website: http://www.fractalizer.ru
* Email: FractalizeR@yandex.ru
* ------------------------------------------------------------------------
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
* http://www.apache.org/licenses/LICENSE-2.0
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
* ========================================================================
*/
namespace phpSweetPDO\SQLHelpers;
/**
* Class with basic helpers to build some SQL operators easily
*/
class Basic {
/**
* Insert helper routine. Example of use:
*
* <code>
* <?php
* $connection->execute(BasicHelpers::insert("mytable", array("name" => "John Smith")));
* </code>
*
* @param string $tablename Name of the table to which to insert the data
* @param array $data Associative array of fieldName => fieldValue to insert into table
* @return string Generated SQL statement
*
*/
public static function insert($tablename, array $data) {
//Forming initial SQL skeleton INSERT INTO table(field1, field2,...) VAlUES(
$sql = 'INSERT INTO ' . $tablename . '(' . implode(', ', array_keys($data)) . ') VALUES (';
//Now making a parameter for each field (field1 => :field1...)
$sqlFieldParams = array();
foreach ($data as $fieldName => $fieldValue) {
$sqlFieldParams [] = ':' . $fieldName;
}
//Listing params
$sql .= implode(', ', $sqlFieldParams) . ')';
return array($sql, $data);
}
/**
* Update helper rountine. Example of use:
*
* <code>
* <?php
* $connection->execute(BasicHelpers::update("mytable", array("name" => "John Smith"), "userid=1"));
* </code>
*
* @param string $tablename Name of the table to which to insert the data
* @param array $data Associative array of fieldName => fieldValue to update on table
* @param string $criteria WHERE part of the query (without 'WHERE' keyword itself)
* @return string Generated SQL statement
*
*/
public static function update($tablename, array $data, $criteria = false) {
$sql = 'UPDATE ' . $tablename . ' SET ';
$sqlFieldParams = array();
foreach ($data as $fieldName => $fieldValue) {
$sqlFieldParams [] = $fieldName . '=:' . $fieldName;
}
$sql .= implode(', ', $sqlFieldParams) . ($criteria ? ' WHERE ' . $criteria : "");
return array($sql, $data);
}
}
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