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Move any_value_fallback() to dba class

Browse source 
https://github.com/friendica/friendica/pull/3323#discussion_r111666245
This commit is contained in:
Alexandre Alapetite 2017-04-15 17:31:32 +02:00
parent 06f374b26b
commit 062070058e
1 changed files with 22 additions and 23 deletions
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45
include/dba.php
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@ -477,6 +477,26 @@ class dba {
} }
} }
} }
/**
* @brief Replaces ANY_VALUE() function by MIN() function,
* if the database server does not support ANY_VALUE().
*
* Considerations for Standard SQL, or MySQL with ONLY_FULL_GROUP_BY (default since 5.7.5).
* ANY_VALUE() is available from MySQL 5.7.5 https://dev.mysql.com/doc/refman/5.7/en/miscellaneous-functions.html
* A standard fall-back is to use MIN().
*
* @param string $sql An SQL string without the values
* @return string The input SQL string modified if necessary.
*/
public function any_value_fallback($sql) {
$server_info = $this->server_info();
if (version_compare($server_info, '5.7.5', '<') ||
(stripos($server_info, 'MariaDB') !== false)) {
$sql = str_ireplace('ANY_VALUE(', 'MIN(', $sql);
}
return $sql;
}
} }
function printable($s) { function printable($s) {
@ -507,27 +527,6 @@ function dbesc($str) {
} }
} }
/**
* @brief Replaces ANY_VALUE() function by MIN() function,
* if the database server does not support ANY_VALUE().
*
* Considerations for Standard SQL, or MySQL with ONLY_FULL_GROUP_BY (default since 5.7.5).
* ANY_VALUE() is available from MySQL 5.7.5 https://dev.mysql.com/doc/refman/5.7/en/miscellaneous-functions.html
* A standard fall-back is to use MIN().
*
* @param string $sql An SQL string without the values
* @return string The input SQL string modified if necessary.
*/
function any_value_fallback($sql) {
global $db;
$server_info = $db->server_info();
if (version_compare($server_info, '5.7.5', '<') ||
(stripos($server_info, 'MariaDB') !== false)) {
$sql = str_ireplace('ANY_VALUE(', 'MIN(', $sql);
}
return $sql;
}
// Function: q($sql,$args); // Function: q($sql,$args);
// Description: execute SQL query with printf style args. // Description: execute SQL query with printf style args.
// Example: $r = q("SELECT * FROM `%s` WHERE `uid` = %d", // Example: $r = q("SELECT * FROM `%s` WHERE `uid` = %d",
@ -538,7 +537,7 @@ function q($sql) {
unset($args[0]); unset($args[0]);
if ($db && $db->connected) { if ($db && $db->connected) {
$sql = any_value_fallback($sql); $sql = $db->any_value_fallback($sql);
$stmt = @vsprintf($sql,$args); // Disabled warnings $stmt = @vsprintf($sql,$args); // Disabled warnings
//logger("dba: q: $stmt", LOGGER_ALL); //logger("dba: q: $stmt", LOGGER_ALL);
if ($stmt === false) if ($stmt === false)
@ -575,7 +574,7 @@ function qu($sql) {
unset($args[0]); unset($args[0]);
if ($db && $db->connected) { if ($db && $db->connected) {
$sql = any_value_fallback($sql); $sql = $db->any_value_fallback($sql);
$stmt = @vsprintf($sql,$args); // Disabled warnings $stmt = @vsprintf($sql,$args); // Disabled warnings
if ($stmt === false) if ($stmt === false)
logger('dba: vsprintf error: ' . print_r(debug_backtrace(),true), LOGGER_DEBUG); logger('dba: vsprintf error: ' . print_r(debug_backtrace(),true), LOGGER_DEBUG);