|
1
|
|
|
<?php
|
|
2
|
|
|
namespace DBAL;
|
|
3
|
|
|
|
|
4
|
|
|
use PDO;
|
|
5
|
|
|
|
|
6
|
|
|
/**
|
|
7
|
|
|
* PDO Database connection class
|
|
8
|
|
|
*
|
|
9
|
|
|
* @author Adam Binnersley <[email protected]>
|
|
10
|
|
|
* @version PDO Database Class
|
|
11
|
|
|
*/
|
|
12
|
|
|
final class Database implements DBInterface{
|
|
13
|
|
|
protected $db;
|
|
14
|
|
|
protected $sql;
|
|
15
|
|
|
private $key;
|
|
16
|
|
|
|
|
17
|
|
|
protected $logLocation = 'logs'.DIRECTORY_SEPARATOR;
|
|
18
|
|
|
public $logErrors = true;
|
|
19
|
|
|
public $logQueries = false;
|
|
20
|
|
|
public $displayErrors = false;
|
|
21
|
|
|
|
|
22
|
|
|
protected $database;
|
|
23
|
|
|
protected $cacheEnabled = false;
|
|
24
|
|
|
protected $cacheObj;
|
|
25
|
|
|
protected $cacheValue;
|
|
26
|
|
|
protected $modified = false;
|
|
27
|
|
|
|
|
28
|
|
|
private $query;
|
|
29
|
|
|
private $values = array();
|
|
30
|
|
|
private $prepare = array();
|
|
31
|
|
|
|
|
32
|
|
|
/**
|
|
33
|
|
|
* Connect to database using PDO connection
|
|
34
|
|
|
* @param string $hostname This should be the host of the database e.g. 'localhost'
|
|
35
|
|
|
* @param string $username This should be the username for the chosen database
|
|
36
|
|
|
* @param string $password This should be the password for the chosen database
|
|
37
|
|
|
* @param string $database This should be the database that you wish to connect to
|
|
38
|
|
|
* @param string|false $backuphost If you have a replication server set up put the hostname or IP address incase the primary server goes down
|
|
39
|
|
|
* @param object|false $cache If you want to cache the queries with Memcache(d)/Redis/APC/Xcache This should be the object else set to false
|
|
40
|
|
|
* @param int $port This should be the port number of the MySQL database connection
|
|
41
|
|
|
*/
|
|
42
|
|
|
public function __construct($hostname, $username, $password, $database, $backuphost = false, $cache = false, $port = 3306){
|
|
43
|
|
|
try{
|
|
44
|
|
|
$this->connectToServer($username, $password, $database, $hostname, $port);
|
|
45
|
|
|
}
|
|
46
|
|
|
catch(\Exception $e){
|
|
47
|
|
|
if($backuphost !== false){
|
|
48
|
|
|
$this->connectToServer($username, $password, $database, $backuphost, $port);
|
|
49
|
|
|
}
|
|
50
|
|
|
$this->error($e);
|
|
51
|
|
|
}
|
|
52
|
|
|
if(is_object($cache)){
|
|
53
|
|
|
$this->setCaching($cache);
|
|
54
|
|
|
}
|
|
55
|
|
|
}
|
|
56
|
|
|
|
|
57
|
|
|
/**
|
|
58
|
|
|
* Closes the PDO database connection when Database object unset
|
|
59
|
|
|
*/
|
|
60
|
|
|
public function __destruct(){
|
|
61
|
|
|
$this->closeDatabase();
|
|
62
|
|
|
}
|
|
63
|
|
|
|
|
64
|
|
|
/**
|
|
65
|
|
|
* Connect to the database using PDO connection
|
|
66
|
|
|
* @param string $username This should be the username for the chosen database
|
|
67
|
|
|
* @param string $password This should be the password for the chosen database
|
|
68
|
|
|
* @param string $database This should be the database that you wish to connect to
|
|
69
|
|
|
* @param string $hostname The hostname for the database
|
|
70
|
|
|
* @param int $port The port number to connect to the MySQL server
|
|
71
|
|
|
*/
|
|
72
|
|
|
protected function connectToServer($username, $password, $database, $hostname, $port = 3306){
|
|
73
|
|
|
if(!$this->db){
|
|
74
|
|
|
$this->database = $database;
|
|
75
|
|
|
$this->db = new PDO('mysql:host='.$hostname.';port='.$port.';dbname='.$database, $username, $password, array(PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION, PDO::MYSQL_ATTR_USE_BUFFERED_QUERY => true, PDO::ATTR_PERSISTENT => true, PDO::ATTR_EMULATE_PREPARES => true));
|
|
76
|
|
|
}
|
|
77
|
|
|
}
|
|
78
|
|
|
|
|
79
|
|
|
/**
|
|
80
|
|
|
* Enables the caching and set the caching object to the one provided
|
|
81
|
|
|
* @param object $caching This should be class of the type of caching you are using
|
|
82
|
|
|
*/
|
|
83
|
|
|
public function setCaching($caching){
|
|
84
|
|
|
if(is_object($caching)){
|
|
85
|
|
|
$this->cacheObj = $caching;
|
|
86
|
|
|
$this->cacheEnabled = true;
|
|
87
|
|
|
}
|
|
88
|
|
|
return $this;
|
|
89
|
|
|
}
|
|
90
|
|
|
|
|
91
|
|
|
/**
|
|
92
|
|
|
* This query function is used for more advanced SQL queries for which non of the other methods fit
|
|
93
|
|
|
* @param string $sql This should be the SQL query which you wish to run
|
|
94
|
|
|
* @return array Returns array of results for the query that has just been run
|
|
95
|
|
|
*/
|
|
96
|
|
|
public function query($sql, $variables = array(), $cache = true){
|
|
97
|
|
|
try{
|
|
98
|
|
|
$this->sql = $sql;
|
|
99
|
|
|
$this->query = $this->db->prepare($this->sql);
|
|
100
|
|
|
$this->query->execute($variables);
|
|
101
|
|
|
if(strpos($this->sql, 'SELECT') !== false){
|
|
102
|
|
|
return $this->query->fetchAll(PDO::FETCH_ASSOC);
|
|
103
|
|
|
}
|
|
104
|
|
|
}
|
|
105
|
|
|
catch(\Exception $e){
|
|
106
|
|
|
$this->error($e);
|
|
107
|
|
|
}
|
|
108
|
|
|
}
|
|
109
|
|
|
|
|
110
|
|
|
/**
|
|
111
|
|
|
* Returns a single record for a select query for the chosen table
|
|
112
|
|
|
* @param string $table This should be the table you wish to select the values from
|
|
113
|
|
|
* @param array $where Should be the field names and values you wish to use as the where query e.g. array('fieldname' => 'value', 'fieldname2' => 'value2', etc).
|
|
114
|
|
|
* @param string|array $fields This should be the records you wis to select from the table. It should be either set as '*' which is the default or set as an array in the following format array('field', 'field2', 'field3', etc).
|
|
115
|
|
|
* @param array $order This is the order you wish the results to be ordered in should be formatted as follows array('fieldname' => 'ASC') or array("'fieldname', 'fieldname2'" => 'DESC')
|
|
116
|
|
|
* @param boolean $cache If the query should be cached or loaded from cache set to true else set to false
|
|
117
|
|
|
* @return array Returns a single table record as the standard array when running SQL queries
|
|
118
|
|
|
*/
|
|
119
|
|
|
public function select($table, $where = array(), $fields = '*', $order = array(), $cache = true){
|
|
120
|
|
|
return $this->selectAll($table, $where, $fields, $order, 1, $cache);
|
|
121
|
|
|
}
|
|
122
|
|
|
|
|
123
|
|
|
/**
|
|
124
|
|
|
* Returns a multidimensional array of the results from the selected table given the given parameters
|
|
125
|
|
|
* @param string $table This should be the table you wish to select the values from
|
|
126
|
|
|
* @param array $where Should be the field names and values you wish to use as the where query e.g. array('fieldname' => 'value', 'fieldname2' => 'value2', etc).
|
|
127
|
|
|
* @param string|array $fields This should be the records you wis to select from the table. It should be either set as '*' which is the default or set as an array in the following format array('field', 'field2', 'field3', etc).
|
|
128
|
|
|
* @param array $order This is the order you wish the results to be ordered in should be formatted as follows array('fieldname' => 'ASC') or array("'fieldname', 'fieldname2'" => 'DESC')
|
|
129
|
|
|
* @param integer|array $limit The number of results you want to return 0 is default and returns all results, else should be formated either as a standard integer or as an array as the start and end values e.g. array(0 => 150)
|
|
130
|
|
|
* @param boolean $cache If the query should be cached or loaded from cache set to true else set to false
|
|
131
|
|
|
* @return array Returns a multidimensional array with the chosen fields from the table
|
|
132
|
|
|
*/
|
|
133
|
|
|
public function selectAll($table, $where = array(), $fields = '*', $order = array(), $limit = 0, $cache = true){
|
|
134
|
|
|
$this->buildSelectQuery($table, $where, $fields, $order, $limit);
|
|
135
|
|
|
$result = $this->executeQuery($cache);
|
|
136
|
|
|
if(!$result){
|
|
137
|
|
|
if($limit === 1){$result = $this->query->fetch(PDO::FETCH_ASSOC);} // Reduce the memory usage if only one record and increase performance
|
|
138
|
|
|
else{$result = $this->query->fetchAll(PDO::FETCH_ASSOC);}
|
|
139
|
|
|
if($cache && $this->cacheEnabled){$this->setCache($this->key, $result);}
|
|
140
|
|
|
}
|
|
141
|
|
|
return $result;
|
|
142
|
|
|
}
|
|
143
|
|
|
|
|
144
|
|
|
/**
|
|
145
|
|
|
* Returns a single column value for a given query
|
|
146
|
|
|
* @param string $table This should be the table you wish to select the values from
|
|
147
|
|
|
* @param array $where Should be the field names and values you wish to use as the where query e.g. array('fieldname' => 'value', 'fieldname2' => 'value2', etc).
|
|
148
|
|
|
* @param array $fields This should be the records you wis to select from the table. It should be either set as '*' which is the default or set as an array in the following format array('field', 'field2', 'field3', etc).
|
|
149
|
|
|
* @param int $colNum This should be the column number you wish to get (starts at 0)
|
|
150
|
|
|
* @param array $order This is the order you wish the results to be ordered in should be formatted as follows array('fieldname' => 'ASC') or array("'fieldname', 'fieldname2'" => 'DESC') so it can be done in both directions
|
|
151
|
|
|
* @param boolean $cache If the query should be cached or loaded from cache set to true else set to false
|
|
152
|
|
|
* @return mixed If a result is found will return the value of the colum given else will return false
|
|
153
|
|
|
*/
|
|
154
|
|
|
public function fetchColumn($table, $where = array(), $fields = '*', $colNum = 0, $order = array(), $cache = true){
|
|
155
|
|
|
$this->buildSelectQuery($table, $where, $fields, $order, 1);
|
|
156
|
|
|
$result = $this->executeQuery($cache);
|
|
157
|
|
|
if(!$result){
|
|
158
|
|
|
$result = $this->query->fetchColumn(intval($colNum));
|
|
159
|
|
|
if($cache && $this->cacheEnabled){$this->setCache($this->key, $result);}
|
|
160
|
|
|
}
|
|
161
|
|
|
return $result;
|
|
162
|
|
|
}
|
|
163
|
|
|
|
|
164
|
|
|
/**
|
|
165
|
|
|
* Inserts into database using the prepared PDO statements
|
|
166
|
|
|
* @param string $table This should be the table you wish to insert the values into
|
|
167
|
|
|
* @param array $records This should be the field names and values in the format of array('fieldname' => 'value', 'fieldname2' => 'value2', etc.)
|
|
168
|
|
|
* @return boolean If data is inserted returns true else returns false
|
|
169
|
|
|
*/
|
|
170
|
|
|
public function insert($table, $records){
|
|
171
|
|
|
unset($this->prepare);
|
|
172
|
|
|
|
|
173
|
|
|
$this->sql = sprintf("INSERT INTO `%s` (%s) VALUES (%s);", $table, $this->fields($records, true), implode(', ', $this->prepare));
|
|
174
|
|
|
$this->executeQuery(false);
|
|
175
|
|
|
return $this->numRows() ? true : false;
|
|
176
|
|
|
}
|
|
177
|
|
|
|
|
178
|
|
|
/**
|
|
179
|
|
|
* Updates values in a database using the provide variables
|
|
180
|
|
|
* @param string $table This should be the table you wish to update the values for
|
|
181
|
|
|
* @param array $records This should be the field names and new values in the format of array('fieldname' => 'newvalue', 'fieldname2' => 'newvalue2', etc.)
|
|
182
|
|
|
* @param array $where Should be the field names and values you wish to update in the form of an array e.g. array('fieldname' => 'value', 'fieldname2' => 'value2', etc).
|
|
183
|
|
|
* @param int $limit The number of results you want to return 0 is default and will update all results that match the query, else should be formated as a standard integer
|
|
184
|
|
|
* @return boolean Returns true if update is successful else returns false
|
|
185
|
|
|
*/
|
|
186
|
|
|
public function update($table, $records, $where = array(), $limit = 0){
|
|
187
|
|
|
$this->sql = sprintf("UPDATE `%s` SET %s %s%s;", $table, $this->fields($records), $this->where($where), $this->limit($limit));
|
|
188
|
|
|
$this->executeQuery(false);
|
|
189
|
|
|
return $this->numRows() ? true : false;
|
|
190
|
|
|
}
|
|
191
|
|
|
|
|
192
|
|
|
/**
|
|
193
|
|
|
* Deletes records from the given table based on the variables given
|
|
194
|
|
|
* @param string $table This should be the table you wish to delete the records from
|
|
195
|
|
|
* @param array $where This should be an array of for the where statement
|
|
196
|
|
|
* @param int $limit The number of results you want to return 0 is default and will delete all results that match the query, else should be formated as a standard integer
|
|
197
|
|
|
*/
|
|
198
|
|
|
public function delete($table, $where, $limit = 0){
|
|
199
|
|
|
$this->sql = sprintf("DELETE FROM `%s` %s%s;", $table, $this->where($where), $this->limit($limit));
|
|
200
|
|
|
$this->executeQuery(false);
|
|
201
|
|
|
return $this->numRows() ? true : false;
|
|
202
|
|
|
}
|
|
203
|
|
|
|
|
204
|
|
|
/**
|
|
205
|
|
|
* Count the number of return results
|
|
206
|
|
|
* @param string $table The table you wish to count the result of
|
|
207
|
|
|
* @param array $where Should be the field names and values you wish to use as the where query e.g. array('fieldname' => 'value', 'fieldname2' => 'value2', etc).
|
|
208
|
|
|
* @param boolean $cache If the query should be cached or loaded from cache set to true else set to false
|
|
209
|
|
|
* @return int Returns the number of results
|
|
210
|
|
|
*/
|
|
211
|
|
|
public function count($table, $where = array(), $cache = true){
|
|
212
|
|
|
$this->sql = sprintf("SELECT count(*) FROM `%s`%s;", $table, $this->where($where));
|
|
213
|
|
|
$this->key = md5($this->database.$this->sql.serialize($this->values));
|
|
214
|
|
|
|
|
215
|
|
|
$result = $this->executeQuery($cache);
|
|
216
|
|
|
if(!$result){
|
|
217
|
|
|
$result = $this->query->fetchColumn();
|
|
218
|
|
|
if($cache && $this->cacheEnabled){$this->setCache($this->key, $result);}
|
|
219
|
|
|
}
|
|
220
|
|
|
return $result;
|
|
221
|
|
|
}
|
|
222
|
|
|
|
|
223
|
|
|
/**
|
|
224
|
|
|
* Truncates a given table from the selected database so there are no values in the table
|
|
225
|
|
|
* @param string $table This should be the table you wish to truncate
|
|
226
|
|
|
* @return boolean If the table is emptied returns true else returns false
|
|
227
|
|
|
*/
|
|
228
|
|
|
public function truncate($table){
|
|
229
|
|
|
try{
|
|
230
|
|
|
$this->sql = sprintf("TRUNCATE TABLE `%s`", $table);
|
|
231
|
|
|
$this->query = $this->db->exec($this->sql);
|
|
232
|
|
|
}
|
|
233
|
|
|
catch(\Exception $e){
|
|
234
|
|
|
$this->error($e);
|
|
235
|
|
|
}
|
|
236
|
|
|
return $this->query ? true : false;
|
|
237
|
|
|
}
|
|
238
|
|
|
|
|
239
|
|
|
/**
|
|
240
|
|
|
* Returns the number of rows for the last query sent
|
|
241
|
|
|
* @return int Returns the number of rows for the last query
|
|
242
|
|
|
*/
|
|
243
|
|
|
public function numRows(){
|
|
244
|
|
|
if(isset($this->query)){
|
|
245
|
|
|
return $this->query->rowCount();
|
|
246
|
|
|
}
|
|
247
|
|
|
return 0;
|
|
248
|
|
|
}
|
|
249
|
|
|
|
|
250
|
|
|
/**
|
|
251
|
|
|
* Returns the number of rows for the last query sent (Looks a the numRows() function just added incase of habbit)
|
|
252
|
|
|
* @return int Returns the number of rows for the last query
|
|
253
|
|
|
*/
|
|
254
|
|
|
public function rowCount(){
|
|
255
|
|
|
return $this->numRows();
|
|
256
|
|
|
}
|
|
257
|
|
|
|
|
258
|
|
|
/**
|
|
259
|
|
|
* Returns the ID of the last record last inserted
|
|
260
|
|
|
* @param string $name This should be the name of the sequence object you wish to retrieve
|
|
261
|
|
|
* @return int|string Returns the last inserted ID of the last insert item if $name is null else returns string with sequenced object
|
|
262
|
|
|
*/
|
|
263
|
|
|
public function lastInsertId($name = null) {
|
|
264
|
|
|
return $this->db->lastInsertId($name);
|
|
265
|
|
|
}
|
|
266
|
|
|
|
|
267
|
|
|
/**
|
|
268
|
|
|
* Returns the index of the given table or tables within the database
|
|
269
|
|
|
* @param string|array $table Table can wither be a standard string with a single table name or an array with multiple table names
|
|
270
|
|
|
* @return array Returns the table index for the selected table as an array
|
|
271
|
|
|
*/
|
|
272
|
|
|
public function fulltextIndex($table){
|
|
273
|
|
|
$fieldlist = array();
|
|
274
|
|
|
if(is_array($table)){
|
|
275
|
|
|
foreach($table as $name){
|
|
276
|
|
|
$fieldlist[$name] = $this->fulltextIndex($name);
|
|
277
|
|
|
}
|
|
278
|
|
|
}else{
|
|
279
|
|
|
try{
|
|
280
|
|
|
$this->sql = sprintf("SHOW INDEX FROM %s;", $table);
|
|
281
|
|
|
$this->query = $this->db->exec($this->sql);
|
|
282
|
|
|
}
|
|
283
|
|
|
catch(\Exception $e){
|
|
284
|
|
|
$this->error($e);
|
|
285
|
|
|
}
|
|
286
|
|
|
|
|
287
|
|
|
while($index = $this->query->fetch(PDO::FETCH_ASSOC)){
|
|
288
|
|
|
if($index['Index_type'] == 'FULLTEXT' && $index['Key_name'] == 'fulltext'){
|
|
289
|
|
|
$fieldlist[] = $index['Column_name'];
|
|
290
|
|
|
}
|
|
291
|
|
|
}
|
|
292
|
|
|
}
|
|
293
|
|
|
return $fieldlist;
|
|
294
|
|
|
}
|
|
295
|
|
|
|
|
296
|
|
|
/**
|
|
297
|
|
|
* Returns the server version information
|
|
298
|
|
|
*/
|
|
299
|
|
|
public function serverVersion(){
|
|
300
|
|
|
return $this->db->getAttribute(PDO::ATTR_SERVER_VERSION);
|
|
301
|
|
|
}
|
|
302
|
|
|
|
|
303
|
|
|
/**
|
|
304
|
|
|
* Displays the error massage which occurs
|
|
305
|
|
|
* @param \Exception $error This should be an instance of Exception
|
|
306
|
|
|
*/
|
|
307
|
|
|
private function error($error){
|
|
308
|
|
|
if($this->logErrors){
|
|
309
|
|
|
$file = $this->logLocation.'db-errors.txt';
|
|
310
|
|
|
$current = file_get_contents($file);
|
|
311
|
|
|
$current .= date('d/m/Y H:i:s')." ERROR: ".$error->getMessage()." on ".$this->sql."\n";
|
|
312
|
|
|
file_put_contents($file, $current);
|
|
313
|
|
|
}
|
|
314
|
|
|
if($this->displayErrors){
|
|
315
|
|
|
die('ERROR: '.$error->getMessage().' on '.$this->sql);
|
|
316
|
|
|
}
|
|
317
|
|
|
}
|
|
318
|
|
|
|
|
319
|
|
|
/**
|
|
320
|
|
|
* Writes all queries to a log file
|
|
321
|
|
|
*/
|
|
322
|
|
|
public function writeQueryToLog(){
|
|
323
|
|
|
$file = $this->logLocation.'queries.txt';
|
|
324
|
|
|
$current = file_get_contents($file);
|
|
325
|
|
|
$current .= "SQL: ".$this->sql.":".serialize($this->values)."\n";
|
|
326
|
|
|
file_put_contents($file, $current);
|
|
327
|
|
|
}
|
|
328
|
|
|
|
|
329
|
|
|
/**
|
|
330
|
|
|
* Closes the PDO database connection by setting the connection to NULL
|
|
331
|
|
|
*/
|
|
332
|
|
|
public function closeDatabase(){
|
|
333
|
|
|
$this->db = null;
|
|
334
|
|
|
}
|
|
335
|
|
|
|
|
336
|
|
|
/**
|
|
337
|
|
|
* Build the SQL query but doesn't execute it
|
|
338
|
|
|
* @param string $table This should be the table you wish to select the values from
|
|
339
|
|
|
* @param array $where Should be the field names and values you wish to use as the where query e.g. array('fieldname' => 'value', 'fieldname2' => 'value2', etc).
|
|
340
|
|
|
* @param string|array $fields This should be the records you wis to select from the table. It should be either set as '*' which is the default or set as an array in the following format array('field', 'field2', 'field3', etc).
|
|
341
|
|
|
* @param array $order This is the order you wish the results to be ordered in should be formatted as follows array('fieldname' => 'ASC') or array("'fieldname', 'fieldname2'" => 'DESC') so it can be done in both directions
|
|
342
|
|
|
* @param integer|array $limit The number of results you want to return 0 is default and returns all results, else should be formated either as a standard integer or as an array as the start and end values e.g. array(0 => 150)
|
|
343
|
|
|
*/
|
|
344
|
|
|
protected function buildSelectQuery($table, $where = array(), $fields = '*', $order = array(), $limit = 0){
|
|
345
|
|
|
if(is_array($fields)){
|
|
346
|
|
|
$selectfields = array();
|
|
347
|
|
|
foreach($fields as $field => $value){
|
|
348
|
|
|
$selectfields[] = sprintf("`%s`", $value);
|
|
349
|
|
|
}
|
|
350
|
|
|
$fieldList = implode(', ', $selectfields);
|
|
351
|
|
|
}
|
|
352
|
|
|
else{$fieldList = '*';}
|
|
353
|
|
|
|
|
354
|
|
|
$this->sql = sprintf("SELECT %s FROM `%s`%s%s%s;", $fieldList, $table, $this->where($where), $this->orderBy($order), $this->limit($limit));
|
|
355
|
|
|
$this->key = md5($this->database.$this->sql.serialize($this->values));
|
|
356
|
|
|
}
|
|
357
|
|
|
|
|
358
|
|
|
/**
|
|
359
|
|
|
* Execute the current query if no cache value is available
|
|
360
|
|
|
* @param boolean $cache If the cache should be checked for the checked for the values of the query set to true else set to false
|
|
361
|
|
|
* @return mixed If a cached value exists will be returned else if cache is not checked and query is executed will not return anything
|
|
362
|
|
|
*/
|
|
363
|
|
|
protected function executeQuery($cache = true){
|
|
364
|
|
|
if($this->logQueries){$this->writeQueryToLog();}
|
|
365
|
|
|
if($cache && $this->cacheEnabled && $this->getCache($this->key)){
|
|
366
|
|
|
return $this->cacheValue;
|
|
367
|
|
|
}
|
|
368
|
|
|
try{
|
|
369
|
|
|
$this->query = $this->db->prepare($this->sql);
|
|
370
|
|
|
$this->query->execute($this->values);
|
|
371
|
|
|
unset($this->values);
|
|
372
|
|
|
}
|
|
373
|
|
|
catch(\Exception $e){
|
|
374
|
|
|
$this->error($e);
|
|
375
|
|
|
}
|
|
376
|
|
|
}
|
|
377
|
|
|
|
|
378
|
|
|
/**
|
|
379
|
|
|
* This outputs the SQL where query based on a given array
|
|
380
|
|
|
* @param array $where This should be an array that you wish to create the where query for in the for array('field1' => 'test') or array('field1' => array('>=', 0))
|
|
381
|
|
|
* @return string|false If the where query is an array will return the where string and set the values else returns false if no array sent
|
|
382
|
|
|
*/
|
|
383
|
|
|
private function where($where){
|
|
384
|
|
|
if(is_array($where)){
|
|
385
|
|
|
$wherefields = array();
|
|
386
|
|
|
foreach($where as $what => $value){
|
|
387
|
|
|
if(is_array($value)){
|
|
388
|
|
|
if($value[1] == 'NULL' || $value[1] == 'NOT NULL'){
|
|
389
|
|
|
$wherefields[] = sprintf("`%s` %s %s", $what, addslashes($value[0]), $value[1]);
|
|
390
|
|
|
}
|
|
391
|
|
|
else{
|
|
392
|
|
|
$wherefields[] = sprintf("`%s` %s ?", $what, addslashes($value[0]));
|
|
393
|
|
|
$this->values[] = $value[1];
|
|
394
|
|
|
}
|
|
395
|
|
|
}
|
|
396
|
|
|
else{
|
|
397
|
|
|
$wherefields[] = sprintf("`%s` = ?", $what);
|
|
398
|
|
|
$this->values[] = $value;
|
|
399
|
|
|
}
|
|
400
|
|
|
}
|
|
401
|
|
|
if(!empty($wherefields)){
|
|
402
|
|
|
return " WHERE ".implode(' AND ', $wherefields);
|
|
403
|
|
|
}
|
|
404
|
|
|
}
|
|
405
|
|
|
return false;
|
|
406
|
|
|
}
|
|
407
|
|
|
|
|
408
|
|
|
/**
|
|
409
|
|
|
* Sets the order sting for the SQL query based on an array or string
|
|
410
|
|
|
* @param array|string $order This should be either set to array('fieldname' => 'ASC/DESC') or RAND()
|
|
411
|
|
|
* @return string|false If the SQL query has an valid order by will return a string else returns false
|
|
412
|
|
|
*/
|
|
413
|
|
|
private function orderBy($order){
|
|
414
|
|
|
if(is_array($order)){
|
|
415
|
|
|
foreach($order as $fieldorder => $fieldvalue){
|
|
416
|
|
|
return sprintf(" ORDER BY `%s` %s", $fieldorder, strtoupper($fieldvalue));
|
|
417
|
|
|
}
|
|
418
|
|
|
}
|
|
419
|
|
|
elseif($order == 'RAND()'){
|
|
420
|
|
|
return " ORDER BY RAND()";
|
|
421
|
|
|
}
|
|
422
|
|
|
return false;
|
|
423
|
|
|
}
|
|
424
|
|
|
|
|
425
|
|
|
/**
|
|
426
|
|
|
* Build the field list for the query
|
|
427
|
|
|
* @param array $records This should be an array listing all of the fields
|
|
428
|
|
|
* @param boolean $insert If this is an insert statement should be set to true to create the correct amount of queries for the prepared statement
|
|
429
|
|
|
* @return string The fields list will be returned as a string to insert into the SQL query
|
|
430
|
|
|
*/
|
|
431
|
|
|
private function fields($records, $insert = false){
|
|
432
|
|
|
$fields = array();
|
|
433
|
|
|
|
|
434
|
|
|
foreach($records as $field => $value){
|
|
435
|
|
|
if($insert === true){
|
|
436
|
|
|
$fields[] = sprintf("`%s`", $field);
|
|
437
|
|
|
$this->prepare[] = '?';
|
|
438
|
|
|
}
|
|
439
|
|
|
else{
|
|
440
|
|
|
$fields[] = sprintf("`%s` = ?", $field);
|
|
441
|
|
|
}
|
|
442
|
|
|
$this->values[] = $value;
|
|
443
|
|
|
}
|
|
444
|
|
|
return implode(', ', $fields);
|
|
445
|
|
|
}
|
|
446
|
|
|
|
|
447
|
|
|
/**
|
|
448
|
|
|
* Returns the limit SQL for the current query as a string
|
|
449
|
|
|
* @param integer|array $limit This should either be set as an integer or should be set as an array with a start and end value
|
|
450
|
|
|
* @return string|false Will return the LIMIT string for the current query if it is valid else returns false
|
|
451
|
|
|
*/
|
|
452
|
|
|
private function limit($limit = 0){
|
|
453
|
|
|
if(is_array($limit)){
|
|
454
|
|
|
foreach($limit as $start => $end){
|
|
455
|
|
|
return " LIMIT ".(int)$start.", ".(int)$end;
|
|
456
|
|
|
}
|
|
457
|
|
|
}
|
|
458
|
|
|
elseif((int)$limit > 0){
|
|
459
|
|
|
return " LIMIT ".(int)$limit;
|
|
460
|
|
|
}
|
|
461
|
|
|
return false;
|
|
462
|
|
|
}
|
|
463
|
|
|
|
|
464
|
|
|
|
|
465
|
|
|
/**
|
|
466
|
|
|
* Set the cache with a key and value
|
|
467
|
|
|
* @param string $key The unique key to store the value against
|
|
468
|
|
|
* @param mixed $value The value of the MYSQL query
|
|
469
|
|
|
*/
|
|
470
|
|
|
public function setCache($key, $value){
|
|
471
|
|
|
if($this->cacheEnabled){
|
|
472
|
|
|
$this->cacheObj->save($key, $value);
|
|
473
|
|
|
}
|
|
474
|
|
|
}
|
|
475
|
|
|
|
|
476
|
|
|
/**
|
|
477
|
|
|
* Get the results for a given key
|
|
478
|
|
|
* @param string $key The unique key to check for stored variables
|
|
479
|
|
|
* @return mixed Returned the cached results from
|
|
480
|
|
|
*/
|
|
481
|
|
|
public function getCache($key){
|
|
482
|
|
|
if($this->modified === true || !$this->cacheEnabled){return false;}
|
|
483
|
|
|
else{
|
|
484
|
|
|
$this->cacheValue = $this->cacheObj->fetch($key);
|
|
485
|
|
|
return $this->cacheValue;
|
|
486
|
|
|
}
|
|
487
|
|
|
}
|
|
488
|
|
|
|
|
489
|
|
|
/**
|
|
490
|
|
|
* Clears the cache
|
|
491
|
|
|
*/
|
|
492
|
|
|
public function flushDB(){
|
|
493
|
|
|
$this->cacheObj->deleteAll();
|
|
494
|
|
|
}
|
|
495
|
|
|
}
|
|
496
|
|
|
|
AdamB7586 /
pdo-dbal
