X-Git-Url: https://git.mxchange.org/?p=mailer.git;a=blobdiff_plain;f=inc%2Fdb%2Flib-mysql3.php;h=7a33983a1ec2d59cb71e9ae08a518dc84280d4c5;hp=ab53b7041b94b2a85a1aff213e561a91bb5aa69b;hb=3b200d3e04e9d99184a65a16c9cbe35e9123e0bf;hpb=b8c071f12a601619c4c02b9441b3e0e012db6ced diff --git a/inc/db/lib-mysql3.php b/inc/db/lib-mysql3.php index ab53b7041b..7a33983a1e 100644 --- a/inc/db/lib-mysql3.php +++ b/inc/db/lib-mysql3.php @@ -6,18 +6,17 @@ * -------------------------------------------------------------------- * * File : lib-mysql3.php * * -------------------------------------------------------------------- * - * Short description : Database layer for MySQL +3.x server * + * Short description : Database layer for MySQL 3/4/5 server * * -------------------------------------------------------------------- * - * Kurzbeschreibung : Datenbankschicht fuer MySQL +3.x Server * + * Kurzbeschreibung : Datenbankschicht fuer MySQL 3/4/5 Server * * -------------------------------------------------------------------- * * $Revision:: $ * * $Date:: $ * * $Tag:: 0.2.1-FINAL $ * * $Author:: $ * - * Needs to be in all Files and every File needs "svn propset * - * svn:keywords Date Revision" (autoprobset!) at least!!!!!! * * -------------------------------------------------------------------- * * Copyright (c) 2003 - 2009 by Roland Haeder * + * Copyright (c) 2009 - 2011 by Mailer Developer Team * * For more information visit: http://www.mxchange.org * * * * This program is free software; you can redistribute it and/or modify * @@ -42,61 +41,67 @@ if (!defined('__SECURITY')) { } // END - if // SQL queries -function SQL_QUERY ($sqlString, $F, $L) { - // Trim SQL string - $sqlString = trim($sqlString); +function SQL_QUERY ($sqlString, $F, $L, $enableCodes = true) { + // Do we have cache? + if (!isset($GLOBALS[__FUNCTION__][$sqlString])) { + //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'Called: ' . $sqlString); + + // Trim SQL string + $sqlStringModified = trim($sqlString); + + // Empty query string or link is not up? + if (empty($sqlStringModified)) { + // Empty SQL string! + debug_report_bug(__FUNCTION__, __LINE__, sprintf("SQL string is empty. Please fix this. file=%s, line=%s", + basename($F), + $L + )); + } elseif (!SQL_IS_LINK_UP()) { + // We should not quietly ignore this + debug_report_bug(__FUNCTION__, __LINE__, sprintf("Cannot query database: sqlString=%s,file=%s,line=%s", + $sqlStringModified, + basename($F), + $L + )); + } - // Link is up? - if (!SQL_IS_LINK_UP()) { - // We should not quietly ignore this! - debug_report_bug(sprintf("Cannot query database: sqlString=%s,file=%s,line=%s", - $sqlString, - basename($F), - $L - )); + // Remove \t, \n and \r from queries they may confuse some MySQL versions + $sqlStringModified = str_replace("\t", ' ', str_replace("\n", ' ', str_replace("\r", ' ', $sqlStringModified))); - // Return 'false' because it has failed - return false; - } elseif (empty($sqlString)) { - // Empty SQL string! - debug_report_bug(sprintf("SQL string is empty. Please fix this. file=%s, line=%s", - basename($F), - $L - )); - - // This is invalid, of course - return false; - } + // Compile config entries out + $sqlStringModified = SQL_PREPARE_SQL_STRING($sqlStringModified, $enableCodes); - // Remove \t, \n and \r from queries they may confuse some MySQL version I have heard - $sqlString = str_replace("\t", ' ', str_replace("\n", ' ', str_replace("\r", ' ', $sqlString))); + // Cache it and remember as last SQL query + $GLOBALS[__FUNCTION__][$sqlString] = $sqlStringModified; + $GLOBALS['last_sql'] = $sqlStringModified; + //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'Stored cache: ' . $sqlStringModified); + } else { + //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'Cache used: ' . $sqlString); - // Replace {PER} - $sqlString = str_replace('{PER}', '%', $sqlString); + // Use cache (to save a lot function calls + $GLOBALS['last_sql'] = $GLOBALS[__FUNCTION__][$sqlString]; - // Compile config entries out - $eval = "\$sqlString = \"".FILTER_COMPILE_CONFIG(escapeQuotes($sqlString))."\";"; - eval($eval); + //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'Cache is: ' . $sqlString); + } // Starting time $querytimeBefore = microtime(true); // Run SQL command - //* DEBUG: */ print('F=' . basename($F) . ',L=' . $L . 'sql=' . htmlentities($sqlString) . '
'); - $result = mysql_query($sqlString, SQL_GET_LINK()) - or addFatalMessage(__FUNCTION__, __LINE__, $F . ' (' . $L . '):' . mysql_error() . '
-Query string:
-' . $sqlString); - //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'sql=' . $sqlString . ',numRows=' . SQL_NUMROWS($result) . ',affected=' . SQL_AFFECTEDROWS()); + //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'F=' . basename($F) . ',L=' . $L . ',sql=' . $GLOBALS['last_sql']); + $result = mysql_query($GLOBALS['last_sql'], SQL_GET_LINK()) + or debug_report_bug($F, $L, 'file='. basename($F) . ',line=' . $L . ':mysql_error()=' . mysql_error() . "\n". +'Query string:' . $GLOBALS['last_sql']); + //* DEBUG: */ logDebugMessage($F, $L, 'sql=' . $GLOBALS['last_sql'] . ',affected=' . SQL_AFFECTEDROWS() . ',numRows='.(is_resource($result) ? SQL_NUMROWS($result) : gettype($result))); // Calculate query time $queryTime = microtime(true) - $querytimeBefore; // Add this query to array including timing - addSqlToDebug($result, $sqlString, $queryTime, $F, $L); + addSqlToDebug($result, $GLOBALS['last_sql'], $queryTime, $F, $L); // Save last successfull query - setConfigEntry('db_last_query', $sqlString); + setConfigEntry('db_last_query', $GLOBALS['last_sql']); // Count all query times incrementConfigEntry('sql_time', $queryTime); @@ -105,18 +110,16 @@ Query string:
incrementConfigEntry('sql_count'); // Debug output - if ((getOutputMode() != 1) && (isDebugModeEnabled()) && (isConfigEntrySet('DEBUG_SQL')) && (getConfig('DEBUG_SQL') == 'Y')) { - // - // Debugging stuff... - // - $fp = fopen(getConfig('CACHE_PATH') . 'mysql.log', 'a') or app_die(__FILE__, __LINE__, 'Cannot write mysql.log!'); + if ((!isCssOutputMode()) && (isDebugModeEnabled()) && (isSqlDebuggingEnabled())) { + // Is this the first call? if (!isset($GLOBALS['sql_first_entry'])) { // Write first entry - fwrite($fp, 'Module=' . getModule() . "\n"); + appendLineToFile(getCachePath() . 'mysql.log', 'Module=' . getModule()); $GLOBALS['sql_first_entry'] = true; } // END - if - fwrite($fp, $F . '(LINE=' . $L . '|NUM=' . SQL_NUMROWS($result) . '|AFFECTED=' . SQL_AFFECTEDROWS() . '|QUERYTIME:' . $queryTime . '): ' . str_replace("\r", '', str_replace("\n", ' ', $sqlString)) . "\n"); - fclose($fp); + + // Append debug line + appendLineToFile(getCachePath() . 'mysql.log', $F . '(LINE=' . $L . '|NUM=' . SQL_NUMROWS($result) . '|AFFECTED=' . SQL_AFFECTEDROWS() . '|QUERYTIME:' . $queryTime . '): ' . str_replace("\r", '', str_replace("\n", ' ', $GLOBALS['last_sql']))); } // END - if // Count DB hits @@ -133,20 +136,26 @@ Query string:
} // SQL num rows -function SQL_NUMROWS ($result) { +function SQL_NUMROWS ($resource) { + // Valid link resource? + if (!SQL_IS_LINK_UP()) return false; + // Link is not up, no rows by default $lines = false; // Is the result a valid resource? - if (is_resource($result)) { + if (isset($GLOBALS['sql_numrows'][$resource])) { + // Use cache + $lines = $GLOBALS['sql_numrows'][intval($resource)]; + } elseif (is_resource($resource)) { // Get the count of rows from database - $lines = mysql_num_rows($result); + $lines = mysql_num_rows($resource); - // Is the result empty? Then we have an error! - if (empty($lines)) $lines = '0'; - } elseif (SQL_IS_LINK_UP()) { - // No resource given, no lines found! - $lines = '0'; + // Remember it in cache + $GLOBALS['sql_numrows'][intval($resource)] = $lines; + } else { + // No resource given, please fix this + debug_report_bug(__FUNCTION__, __LINE__, 'No resource given! result[]=' . gettype($resource) . ',last_sql=' . $GLOBALS['last_sql']); } // Return lines @@ -166,65 +175,51 @@ function SQL_AFFECTEDROWS() { } // SQL fetch row -function SQL_FETCHROW ($result) { +function SQL_FETCHROW ($resource) { // Is a result resource set? - if ((!is_resource($result)) || (!SQL_IS_LINK_UP())) return false; + if ((!is_resource($resource)) || (!SQL_IS_LINK_UP())) return false; // Fetch the data and return it - return mysql_fetch_row($result); + return mysql_fetch_row($resource); } // SQL fetch array -function SQL_FETCHARRAY ($res, $nr=0, $remove_numerical=true) { +function SQL_FETCHARRAY ($res) { // Is a result resource set? if ((!is_resource($res)) || (!SQL_IS_LINK_UP())) return false; - // Initialize array - $row = array(); - // Load row from database - $row = mysql_fetch_array($res); + $row = mysql_fetch_assoc($res); // Return only arrays here if (is_array($row)) { - // Shall we remove numerical data here automatically? - if ($remove_numerical) { - // So let's remove all numerical elements to save memory! - $max = count($row); - for ($idx = '0'; $idx < ($max / 2); $idx++) { - // Remove entry - unset($row[$idx]); - } // END - for - } // END - if - // Return row return $row; } else { - // Return a false here... + // Return a false, else some loops would go endless... return false; } } // SQL result -function SQL_RESULT ($res, $row, $field = '0') { - // Is $res valid? - if ((!is_resource($res)) || (!SQL_IS_LINK_UP())) return false; +function SQL_RESULT ($resource, $row, $field = '0') { + // Is $resource valid? + if ((!is_resource($resource)) || (!SQL_IS_LINK_UP())) return false; + + // Run the result command + $result = mysql_result($resource, $row, $field); - // Run the result command and return the result - $result = mysql_result($res, $row, $field); + // ... and return the result return $result; } // SQL connect function SQL_CONNECT ($host, $login, $password, $F, $L) { // Try to connect - $connect = mysql_connect($host, $login, $password) or addFatalMessage(__FUNCTION__, __LINE__, $F." (".$L."):".mysql_error()); + $linkResource = mysql_connect($host, $login, $password) or addFatalMessage(__FUNCTION__, __LINE__, $F . ' (' . $L . '):' . mysql_error()); // Set the link resource - SQL_SET_LINK($connect); - - // Destroy cache - unset($GLOBALS['sql_link_res']); + SQL_SET_LINK($linkResource); } // SQL select database @@ -233,7 +228,7 @@ function SQL_SELECT_DB ($dbName, $F, $L) { if (!SQL_IS_LINK_UP()) return false; // Return the result - return mysql_select_db($dbName, SQL_GET_LINK()) or addFatalMessage(__FUNCTION__, __LINE__, $F." (".$L."):".mysql_error()); + return mysql_select_db($dbName, SQL_GET_LINK()) or addFatalMessage(__FUNCTION__, __LINE__, $F . ' (' . $L . '):' . mysql_error()); } // SQL close link @@ -250,31 +245,31 @@ function SQL_CLOSE ($F, $L) { // Close link SQL_SET_LINK(null); - // Destroy cache - unset($GLOBALS['sql_link_res']); - // Return the result return $close; } // SQL free result -function SQL_FREERESULT ($result) { - if ((!is_resource($result)) || (!SQL_IS_LINK_UP())) { +function SQL_FREERESULT ($resource) { + if ((!is_resource($resource)) || (!SQL_IS_LINK_UP())) { // Abort here return false; } // END - if - $res = mysql_free_result($result); + // Free result + $res = mysql_free_result($resource); + + // And return that result of freeing it... return $res; } // SQL string escaping -function SQL_QUERY_ESC ($qstring, $data, $F, $L, $run=true, $strip=true, $secure=true) { +function SQL_QUERY_ESC ($sqlString, $data, $F, $L, $run = true, $strip = true, $secure = true) { // Link is there? if ((!SQL_IS_LINK_UP()) || (!is_array($data))) return false; // Escape all data - $dataSecured['__sql_string'] = $qstring; + $dataSecured['__sql_string'] = $sqlString; foreach ($data as $key => $value) { $dataSecured[$key] = SQL_ESCAPE($value, $secure, $strip); } // END - foreach @@ -282,12 +277,6 @@ function SQL_QUERY_ESC ($qstring, $data, $F, $L, $run=true, $strip=true, $secure // Generate query $query = call_user_func_array('sprintf', $dataSecured); - // Debugging - // - //* DEBUG: */ $fp = fopen(getConfig('CACHE_PATH') . 'escape_debug.log', 'a') or app_die(__FILE__, __LINE__, "Cannot write debug.log!"); - //* DEBUG: */ fwrite($fp, $F.'('.$L."): ".str_replace("\r", '', str_replace("\n", " ", $eval))."\n"); - //* DEBUG: */ fclose($fp); - if ($run === true) { // Run SQL query (default) return SQL_QUERY($query, $F, $L); @@ -304,7 +293,7 @@ function SQL_INSERTID () { } // Escape a string for the database -function SQL_ESCAPE ($str, $secureString=true, $strip=true) { +function SQL_ESCAPE ($str, $secureString = true, $strip = true) { // Do we have cache? if (!isset($GLOBALS['sql_escapes'][''.$str.''])) { // Secure string first? (which is the default behaviour!) @@ -318,7 +307,6 @@ function SQL_ESCAPE ($str, $secureString=true, $strip=true) { $ret = escapeQuotes($str); } elseif (function_exists('mysql_real_escape_string')) { // The new and improved version - //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'str='.$str); $ret = mysql_real_escape_string($str, SQL_GET_LINK()); } elseif (function_exists('mysql_escape_string')) { // The obsolete function @@ -341,7 +329,7 @@ function SQL_RESULT_FROM_ARRAY ($table, $columns, $idRow, $id, $F, $L) { // Is columns an array? if (!is_array($columns)) { // No array - debug_report_bug(sprintf("columns is not an array. %s != array, file=%s, line=%s", + debug_report_bug(__FUNCTION__, __LINE__, sprintf("columns is not an array. %s != array, file=%s, line=%s", gettype($columns), basename($F), $L @@ -365,7 +353,7 @@ function SQL_RESULT_FROM_ARRAY ($table, $columns, $idRow, $id, $F, $L) { } // ALTER TABLE wrapper function -function SQL_ALTER_TABLE ($sql, $F, $L) { +function SQL_ALTER_TABLE ($sql, $F, $L, $enableCodes = true) { // Abort if link is down if (!SQL_IS_LINK_UP()) return false; @@ -389,41 +377,59 @@ function SQL_ALTER_TABLE ($sql, $F, $L) { $tableArray = explode(' ', $sql); $tableName = str_replace('`', '', $tableArray[2]); + // Debug log + //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'sql=' . $sql . ',tableName=' . $tableName); + // Shall we add/drop? - if (((strpos($sql, 'ADD') !== false) || (strpos($sql, 'DROP') !== false)) && ($noIndex === true)) { + if (((strpos($sql, 'ADD') !== false) || (strpos($sql, 'DROP') !== false) || (strpos($sql, 'CHANGE') !== false)) && ($noIndex === true)) { // Try two columns, one should fix foreach (array(4,5) as $idx) { + // If an entry is not set, abort here + if (!isset($tableArray[$idx])) { + // Debug log this + logDebugMessage(__FUNCTION__, __LINE__, 'columnName=' . $columnName . ',idx=' . $idx . ',sql=' . $sql . ' is missing!'); + break; + } // END - if + // And column name as well $columnName = str_replace('`', '', $tableArray[$idx]); // Get column information $result = SQL_QUERY_ESC("SHOW COLUMNS FROM `%s` LIKE '%s'", - array($tableName, $columnName), __FILE__, __LINE__); + array($tableName, $columnName), __FUNCTION__, __LINE__); + + // Debug log + //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'columnName=' . $columnName . ',idx=' . $idx . ',sql=' . $sql . ',hasZeroNums=' . intval(SQL_HASZERONUMS($result))); - // Do we have no entry on ADD or an entry on DROP? - // 123 4 4 3 3 4 4 32 23 4 4 3 3 4 4 321 - if (((SQL_NUMROWS($result) == '0') && (strpos($sql, 'ADD') !== false)) || ((SQL_NUMROWS($result) == 1) && (strpos($sql, 'DROP') !== false))) { + // Do we have no entry on ADD or an entry on DROP/CHANGE? + // 123 4 43 3 4 4 32 23 4 4 3 3 4 4 32 23 4 43 3 4 4 3 3 321 + if (((SQL_HASZERONUMS($result)) && (strpos($sql, 'ADD') !== false)) || ((!SQL_HASZERONUMS($result)) && (strpos($sql, 'DROP') !== false)) || ((!SQL_HASZERONUMS($result)) && (strpos($sql, 'CHANGE') !== false) && ($idx == 4))) { // Do the query //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'Executing: ' . $sql); $result = SQL_QUERY($sql, $F, $L, false); // Skip further attempt(s) break; - } elseif ((((SQL_NUMROWS($result) == 1) && (strpos($sql, 'ADD') !== false)) || ((SQL_NUMROWS($result) == '0') && (strpos($sql, 'DROP') !== false))) && ($columnName != 'KEY')) { + // 1234 5 54 4 5 5 43 34 5 54 4 5 5 43 3 4 4 32 2 21 + } elseif ((((!SQL_HASZERONUMS($result)) && (strpos($sql, 'ADD') !== false)) || ((!SQL_HASZERONUMS($result)) && (strpos($sql, 'DROP') !== false)) || (strpos($sql, 'CHANGE') !== false)) && ($columnName != 'KEY')) { // Abort here because it is alreay there - //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'Skipped: ' . $sql); + //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'Skipped: sql=' . $sql . ',columnName=' . $columnName . ',idx=' . $idx); + break; + } elseif ((SQL_HASZERONUMS($result)) && (strpos($sql, 'DROP') !== false)) { + // Abort here because we tried to drop a column which is not there (never created maybe) + //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'No drop: ' . $sql); break; } elseif ($columnName != 'KEY') { - // Something didn't fit - //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'Possible problem: ' . $sql); + // Something didn't fit, we better log it + logDebugMessage(__FUNCTION__, __LINE__, 'Possible problem: ' . $sql . ',hasZeroNums=' . intval(SQL_HASZERONUMS($result)) . ''); } } // END - foreach - } elseif ((getConfig('_TABLE_TYPE') == 'InnoDB') && (strpos($sql, 'FULLTEXT') !== false)) { + } elseif ((getTableType() == 'InnoDB') && (strpos($sql, 'FULLTEXT') !== false)) { // Skip this query silently - //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, sprintf("Skipped FULLTEXT: sql=%s,file=%s,line=%s", $sql, $F, $L)); + //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, sprintf("Skipped FULLTEXT: sql=%s,tableName=%s,hasZeroNums=%d,file=%s,line=%s", $sql, $tableName, intval((is_bool($result)) ? 0 : SQL_HASZERONUMS($result)), $F, $L)); } elseif ($noIndex === false) { // And column name as well - //* DEBUG: */ print __LINE__.':tableArray=
' . print_r($tableArray, true) . '
'; + //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'tableArray=
' . print_r($tableArray, true) . '
'); $keyName = str_replace('`', '', $tableArray[5]); // Is this "UNIQUE" or so? FULLTEXT has been handled the elseif() block above @@ -444,44 +450,11 @@ function SQL_ALTER_TABLE ($sql, $F, $L) { } // END while } // END - if - // Show indexes - $result = SQL_QUERY_ESC("SHOW INDEX FROM `%s`", array($tableName), __FILE__, __LINE__); - - // Non-skipping is default for ADD - $skip = false; - - // But should we DROP? - if ($tableArray[3] == 'DROP') { - // Then skip if nothing found! - $skip = true; - //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'Going to drop key ' . $keyName); - } // END - if - - // Walk through all - while ($content = SQL_FETCHARRAY($result)) { - // Is it found? - //* DEBUG: */ print(__LINE__.':columnName='.$keyName.',content=
' . print_r($content, true) . '
'); - if (($content['Key_name'] == $keyName) && ($tableArray[3] == 'ADD')) { - // Skip this query! - //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, sprintf("ADD: Skiped: %s", $sql)); - $skip = true; - break; - } elseif (($content['Key_name'] == $keyName) && ($tableArray[3] == 'DROP')) { - // Don't skip this! - //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, sprintf("DROP: Not skiped: %s", $sql)); - $skip = false; - break; - } - } // END - while - - // Free result - SQL_FREERESULT($result); - // Shall we run it? - if ($skip === false) { + if (!isSqlTableIndexAdded($tableName, $tableArray[3])) { // Send it to the SQL_QUERY() function //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, $sql); - $result = SQL_QUERY($sql, $F, $L, false); + $result = SQL_QUERY($sql, $F, $L, $enableCodes); } else { // Not executed //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'Not executed: ' . $sql); @@ -489,7 +462,7 @@ function SQL_ALTER_TABLE ($sql, $F, $L) { } else { // Other ALTER TABLE query //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, $sql); - $result = SQL_QUERY($sql, $F, $L, false); + $result = SQL_QUERY($sql, $F, $L, $enableCodes); } // Return result @@ -514,13 +487,19 @@ function SQL_GET_LINK () { // Setter for link function SQL_SET_LINK ($link) { // Is this a resource or null? - if ((!is_resource($link)) && (!is_null($link))) { + if ((ifFatalErrorsDetected()) && (isInstallationPhase())) { + // This may happen in installation phase + return; + } elseif ((!is_resource($link)) && (!is_null($link))) { // This should never happen! - debug_report_bug(sprintf("link is not resource or null. Type: %s", gettype($link))); + debug_report_bug(__FUNCTION__, __LINE__, sprintf("Type of link is not resource or null, type=%s", gettype($link))); } // END - if // Set it $GLOBALS['sql_link'] = $link; + + // Re-init cache + $GLOBALS['is_sql_link_up'] = is_resource($link); } // Checks if the link is up @@ -529,20 +508,106 @@ function SQL_IS_LINK_UP () { $linkUp = false; // Do we have cached this? - if (isset($GLOBALS['sql_link_res'])) { + if (isset($GLOBALS['is_sql_link_up'])) { // Then use this - $linkUp = $GLOBALS['sql_link_res']; + $linkUp = $GLOBALS['is_sql_link_up']; } else { // Get it $linkUp = is_resource(SQL_GET_LINK()); // And cache it - $GLOBALS['sql_link_res'] = $linkUp; + $GLOBALS['is_sql_link_up'] = $linkUp; } // Return the result return $linkUp; } +// Wrapper function to make code more readable +function SQL_HASZERONUMS ($result) { + // Just pass it through + return (SQL_NUMROWS($result) === 0); +} + +// Wrapper function to make code more readable +function SQL_HASZEROAFFECTED () { + // Just pass it through + return (SQL_AFFECTEDROWS() === 0); +} + +// Private function to prepare the SQL query string +function SQL_PREPARE_SQL_STRING ($sqlString, $enableCodes = true) { + // Is it already cached? + if (!isset($GLOBALS['sql_strings'][$sqlString])) { + // Compile config+expression code + $sqlString2 = FILTER_COMPILE_EXPRESSION_CODE(FILTER_COMPILE_CONFIG($sqlString)); + + // Do final compilation + $GLOBALS['sql_strings'][$sqlString] = doFinalCompilation($sqlString2, false, $enableCodes); + //die($sqlString.'
'.$sqlString2.'
'.$GLOBALS['sql_strings'][$sqlString]); + } // END - if + + // Return it + return $GLOBALS['sql_strings'][$sqlString]; +} + +// Check if there is a SQL table created +function isSqlTableCreated ($table) { + // Do we have cache? + if (!isset($GLOBALS[__FUNCTION__][$table])) { + // Check if the table is there + $result = SQL_QUERY_ESC("SHOW TABLES FROM `{?__DB_NAME?}` WHERE `Tables_in_{?__DB_NAME?}`='{?_MYSQL_PREFIX?}_%s'", + array($table), __FILE__, __LINE__); + + // Is there an entry? + $GLOBALS[__FUNCTION__][$table] = (SQL_NUMROWS($result) == 1); + } // END - if + + // Return cache + return $GLOBALS[__FUNCTION__][$table]; +} + +// Checks depending on the mode if the table is there +function isSqlTableIndexAdded ($tableName, $mode) { + // Do we have cache? + if (!isset($GLOBALS[__FUNCTION__][$tableName][$mode])) { + // Show indexes + $result = SQL_QUERY_ESC("SHOW INDEX FROM `%s`", array($tableName), __FUNCTION__, __LINE__); + + // Non-skipping is default for ADD + $GLOBALS[__FUNCTION__][$tableName][$mode] = false; + + // But should we DROP? + if ($mode == 'DROP') { + // Then skip if nothing found + $GLOBALS[__FUNCTION__][$tableName][$mode] = true; + //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'Going to drop key ' . $keyName); + } // END - if + + // Walk through all + while ($content = SQL_FETCHARRAY($result)) { + // Is it found? + //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'columnName='.$keyName.',content=
' . print_r($content, true) . '
'); + if (($content['Key_name'] == $keyName) && ($mode == 'ADD')) { + // Skip this query! + //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, sprintf("ADD: Skiped: %s", $sql)); + $GLOBALS[__FUNCTION__][$tableName][$mode] = true; + break; + } elseif (($content['Key_name'] == $keyName) && ($mode == 'DROP')) { + // Don't skip this! + //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, sprintf("DROP: Not skiped: %s", $sql)); + $GLOBALS[__FUNCTION__][$tableName][$mode] = false; + break; + } + } // END - while + + // Free result + SQL_FREERESULT($result); + } // END - if + + // Return cache + return $GLOBALS[__FUNCTION__][$tableName][$mode]; +} + // [EOF] ?>