* -------------------------------------------------------------------- *
* File : sql-functions.php *
* -------------------------------------------------------------------- *
- * Short description : All MySQL-related functions *
+ * Short description : SQL functions to handle queries *
* -------------------------------------------------------------------- *
- * Kurzbeschreibung : Alle MySQL-Relevanten Funktionen *
+ * Kurzbeschreibung : SQL-Funktionen fuer Queries *
* -------------------------------------------------------------------- *
* $Revision:: $ *
* $Date:: $ *
* $Author:: $ *
* -------------------------------------------------------------------- *
* Copyright (c) 2003 - 2009 by Roland Haeder *
- * Copyright (c) 2009, 2010 by Mailer Developer Team *
- * For more information visit: http://www.mxchange.org *
+ * Copyright (c) 2009 - 2012 by Mailer Developer Team *
+ * For more information visit: http://mxchange.org *
* *
* This program is free software; you can redistribute it and/or modify *
* it under the terms of the GNU General Public License as published by *
// Init SQLs array
function initSqls () {
- setSqlsArray(array());
+ // Init generic array
+ setSqlsArray(array('generic' => array()));
}
-// Checks wether the sqls array is initialized
+// Checks whether the sqls array is initialized
function isSqlsInitialized () {
return ((isset($GLOBALS['sqls'])) && (is_array($GLOBALS['sqls'])));
}
// Add an SQL to the list
function addSql ($sql) {
//* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, sprintf("sql=%s, count=%d", $sql, countSqls()));
- $GLOBALS['sqls']['generic'][] = (string) $sql;
+ array_push($GLOBALS['sqls']['generic'], $sql);
}
// Merge SQLs together
return $count;
}
-// Checks wether the SQLs array is filled
+// Checks whether the SQLs array is filled
function isSqlsValid () {
- //* DEBUG: */ debugOutput(__FUNCTION__.':'.intval(isSqlsInitialized()).'/'.countSqls().'/'.getCurrentExtensionName());
+ //* DEBUG: */ debugOutput(__FUNCTION__ . ':' . intval(isSqlsInitialized()) . '/' . countSqls() . '/' . getCurrentExtensionName());
return (
(
isSqlsInitialized()
);
}
+// Generates an updating SQL query from given array
+function getUpdateSqlFromArray ($array, $tableName, $whereColumn, $whereData, $excludedFields, $multiDimId = NULL) {
+ // Begin SQL query
+ $SQL = 'UPDATE `{?_MYSQL_PREFIX?}_' . $tableName . '` SET ';
+
+ // Insert all data
+ foreach ($array as $entry => $value) {
+ // Skip login/id entry
+ if (in_array($entry, $excludedFields)) {
+ continue;
+ } // END - if
+
+ // Is there a non-string (e.g. number, NULL, SQL function or back-tick at the beginning?
+ if (is_null($multiDimId)) {
+ // Handle one-dimensional data
+ if (is_null($value)) {
+ // NULL detected
+ $SQL .= '`' . $entry . '`=NULL,';
+ } elseif ((substr($value, -2, 2) == '()') || (substr($value, 0, 1) == '`')) {
+ // SQL function needs no ticks (')
+ $SQL .= '`' . $entry . '`=' . SQL_ESCAPE($value) . ',';
+ } elseif ('' . bigintval($value, TRUE, FALSE) . '' == '' . $value . '') {
+ // No need for ticks (')
+ $SQL .= '`' . $entry . '`=' . $value . ',';
+ } elseif ('' . (float) $value . '' == '' . $value . '') {
+ // Float number detected
+ $SQL .= '`' . $entry . '`=' . sprintf(getConfig('FLOAT_MASK'), $value) . ',';
+ } else {
+ // Strings need ticks (') around them
+ $SQL .= '`' . $entry . "`='" . SQL_ESCAPE($value) . "',";
+ }
+ } else {
+ // Handle multi-dimensional data
+ if (is_null($value[$multiDimId])) {
+ // NULL detected
+ $SQL .= '`' . $entry . '`=NULL,';
+ } elseif ((substr($value[$multiDimId], -2, 2) == '()') || (substr($value[$multiDimId], 0, 1) == '`')) {
+ // SQL function needs no ticks (')
+ $SQL .= '`' . $entry . '`=' . SQL_ESCAPE($value[$multiDimId]) . ',';
+ } elseif (('' . bigintval($value[$multiDimId], TRUE, FALSE) . '' == '' . $value[$multiDimId] . '')) {
+ // No need for ticks (')
+ $SQL .= '`' . $entry . '`=' . $value[$multiDimId] . ',';
+ } elseif ('' . (float) $value[$multiDimId] . '' == '' . $value[$multiDimId] . '') {
+ // Float number detected
+ $SQL .= '`' . $entry . '`=' . sprintf(getConfig('FLOAT_MASK'), $value[$multiDimId]) . ',';
+ } else {
+ // Strings need ticks (') around them
+ $SQL .= '`' . $entry . "`='" . SQL_ESCAPE($value[$multiDimId]) . "',";
+ }
+ }
+ } // END - foreach
+
+ // Remove last 2 chars and finish query
+ $SQL = substr($SQL, 0, -1) . ' WHERE `' . $whereColumn . '`=' . $whereData . ' LIMIT 1';
+
+ // Return SQL query
+ return $SQL;
+}
+
+// "Getter" for an "INSERT INTO" SQL query
+function getInsertSqlFromArray ($array, $tableName) {
+ // Init SQL
+ $SQL = 'INSERT INTO `{?_MYSQL_PREFIX?}_' . $tableName . '` (`' . implode('`, `', array_keys($array)) . '`) VALUES (';
+
+ // Walk through all entries
+ foreach ($array as $key => $value) {
+ // Log debug message
+ //* NOISY-DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'tableName=' . $tableName . ',key=' . $key . ',value=' . $value);
+
+ // Add all entries
+ if (is_null($value)) {
+ // Add NULL
+ $SQL .= 'NULL,';
+ } elseif (substr($value, -2, 2) == '()') {
+ // SQL function needs no ticks (')
+ $SQL .= SQL_ESCAPE($value) . ',';
+ } elseif ('' . bigintval($value, TRUE, FALSE) . '' == '' . $value . '') {
+ // Number detected, no need for ticks (')
+ $SQL .= bigintval($value) . ',';
+ } elseif ('' . (float) $value . '' == '' . $value . '') {
+ // Float number detected
+ $SQL .= sprintf(getConfig('FLOAT_MASK'), $value) . ',';
+ } else {
+ // Everything else might be a string, so add ticks around it
+ $SQL .= chr(39) . SQL_ESCAPE($value) . chr(39) . ',';
+ }
+ } // END - foreach
+
+ // Finish SQL query
+ $SQL = substr($SQL, 0, -1) . ')';
+
+ // Return SQL query
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'tableName=' . $tableName . ',sql=' . $SQL);
+ return $SQL;
+}
+
+// Function to unset __is_sql_link_up
+function unsetSqlLinkUp ($F, $L) {
+ // Unset it
+ //* DEBUG: */ logDebugMessage($F, $L, __FUNCTION__ . ': Called!');
+ SQL_SET_LINK($F, $L, NULL);
+}
+
+// Initializes the SQL link by bringing it up if set
+function initSqlLink () {
+ // "Unset" the link
+ unsetSqlLinkUp(__FUNCTION__, __LINE__);
+
+ // Do this only if link is down
+ assert(!SQL_IS_LINK_UP());
+
+ // Is the configuration data set?
+ if ((!empty($GLOBALS['mysql']['host'])) && (!empty($GLOBALS['mysql']['login'])) && (!empty($GLOBALS['mysql']['dbase']))) {
+ // Remove cache
+ unsetSqlLinkUp(__FUNCTION__, __LINE__);
+
+ // Connect to DB
+ SQL_CONNECT($GLOBALS['mysql']['host'], $GLOBALS['mysql']['login'], $GLOBALS['mysql']['password'], __FUNCTION__, __LINE__);
+
+ // Is the link valid?
+ if (SQL_IS_LINK_UP()) {
+ // Enable exit on error
+ enableExitOnError();
+
+ // Is it a valid resource?
+ if (SQL_SELECT_DB($GLOBALS['mysql']['dbase'], __FUNCTION__, __LINE__) === TRUE) {
+ // Set database name (required for ext-optimize and ifSqlTableExists())
+ setConfigEntry('__DB_NAME', $GLOBALS['mysql']['dbase']);
+
+ // Remove MySQL array from namespace
+ unset($GLOBALS['mysql']);
+
+ // Load cache
+ loadIncludeOnce('inc/load_cache.php');
+ } else {
+ // Wrong database?
+ reportBug(__FUNCTION__, __LINE__, 'Wrong database selected.');
+ }
+ } else {
+ // No link to database!
+ reportBug(__FUNCTION__, __LINE__, 'Database link is not yet up.');
+ }
+ } else {
+ // Maybe you forgot to enter your database login?
+ reportBug(__FUNCTION__, __LINE__, 'Database login is missing.');
+ }
+}
+
+// Imports given SQL dump from given (relative) path and adds them to $sqlPool
+function importSqlDump ($path, $dumpName, $sqlPool) {
+ // Construct FQFN
+ $FQFN = getPath() . $path . '/' . $dumpName . '.sql';
+
+ // Is the file readable?
+ if (!isFileReadable($FQFN)) {
+ // Not found, which is bad
+ reportBug(__FUNCTION__, __LINE__, sprintf("SQL dump %s/%s.sql is not readable.", $path, $dumpName));
+ } // END - if
+
+ // Then read it
+ $fileContent = readSqlDump($FQFN);
+
+ // Merge it with existing SQL statements
+ mergeSqls(explode(";\n", $fileContent), $sqlPool);
+}
+
+// SQL string escaping
+function SQL_QUERY_ESC ($sqlString, $data, $F, $L, $run = TRUE, $strip = TRUE, $secure = TRUE) {
+ // Link is there?
+ if ((!SQL_IS_LINK_UP()) || (!is_array($data))) {
+ // Link is down or data is not an array
+ //* DEBUG: */ logDebugMessage($F, $L, 'SQL_IS_LINK_UP()=' . intval(SQL_IS_LINK_UP()) . ',data[]=' . gettype($data) . ',sqlString=' . $sqlString . ': ABORTING!');
+ return FALSE;
+ } // END - if
+
+ // Init array for escape'd data with SQL string
+ $dataSecured = array(
+ '__sql_string' => $sqlString
+ );
+
+ // Escape all data
+ foreach ($data as $key => $value) {
+ $dataSecured[$key] = SQL_ESCAPE($value, $secure, $strip);
+ } // END - foreach
+
+ // Generate query
+ $query = call_user_func_array('sprintf', $dataSecured);
+
+ if ($run === TRUE) {
+ // Run SQL query (default)
+ return SQL_QUERY($query, $F, $L);
+ } else {
+ // Return secured string
+ return $query;
+ }
+}
+
+// SELECT query string from table, columns and so on... ;-)
+function SQL_RESULT_FROM_ARRAY ($table, $columns, $idRow, $id, $F, $L) {
+ // Is columns an array?
+ if (!is_array($columns)) {
+ // No array
+ reportBug(__FUNCTION__, __LINE__, sprintf("columns is not an array. %s != array, file=%s, line=%s",
+ gettype($columns),
+ basename($F),
+ $L
+ ));
+
+ // Abort here with 'false'
+ return FALSE;
+ } // END - if
+
+ // Is this is a simple array?
+ if ((is_array($columns[0])) && (isset($columns[0]['column']))) {
+ // Begin with SQL query
+ $sql = 'SELECT ';
+
+ // No, it comes from XML, so get it back from it
+ $sql .= getSqlPartFromXmlArray($columns);
+
+ // Finalize it
+ $sql .= " FROM `{?_MYSQL_PREFIX?}_%s` WHERE `%s`='%s' LIMIT 1";
+ } else {
+ // Yes, prepare the SQL statement
+ $sql = 'SELECT `' . implode('`, `', $columns) . "` FROM `{?_MYSQL_PREFIX?}_%s` WHERE `%s`='%s' LIMIT 1";
+ }
+
+ // Return the result
+ return SQL_QUERY_ESC($sql,
+ array(
+ $table,
+ $idRow,
+ bigintval($id),
+ ), $F, $L
+ );
+}
+
+// ALTER TABLE wrapper function
+function SQL_ALTER_TABLE ($sql, $F, $L, $enableCodes = TRUE) {
+ // Abort if link is down
+ if (!SQL_IS_LINK_UP()) return FALSE;
+
+ // This is the default result...
+ $result = FALSE;
+
+ // Determine index/fulltext/unique word
+ $isAlterIndex = (
+ (
+ isInString('INDEX', $sql)
+ ) || (
+ isInString('KEY', $sql)
+ ) || (
+ isInString('FULLTEXT', $sql)
+ ) || (
+ isInString('UNIQUE', $sql)
+ )
+ );
+
+ // Extract table name
+ $tableArray = explode(' ', $sql);
+ $tableName = str_replace('`', '', $tableArray[2]);
+
+ // Debug log
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'sql=' . $sql . ',tableName=' . $tableName . ',tableArray=<pre>' . print_r($tableArray, TRUE) . '</pre>,isAlterIndex=' . intval($isAlterIndex));
+
+ // Shall we add/drop?
+ if (((isInString('ADD', $sql)) || (isInString('DROP', $sql)) || (isInString('CHANGE', $sql))) && ($isAlterIndex === FALSE)) {
+ // 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 = $tableArray[$idx];
+
+ // Debug log
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'columnName=' . $columnName . ',idx=' . $idx . ',sql=' . $sql . ',hasZeroNums=' . intval(ifSqlTableColumnExists($tableName, $columnName)));
+
+ // Is there no entry on ADD or an entry on DROP/CHANGE?
+ if (((!ifSqlTableColumnExists($tableName, $columnName)) && (isInString('ADD', $sql))) || ((ifSqlTableColumnExists($tableName, $columnName)) && ((isInString('DROP', $sql)) || ((isInString('CHANGE', $sql)) && ($idx == 4) && ((!ifSqlTableColumnExists($tableName, $tableArray[5])) || ($columnName == $tableArray[5])))))) {
+ // Do the query
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'Executing: ' . $sql);
+ $result = SQL_QUERY($sql, $F, $L, FALSE);
+
+ // Skip further attempt(s)
+ break;
+ } elseif ((((ifSqlTableColumnExists($tableName, $columnName)) && (isInString('ADD', $sql))) || ((!ifSqlTableColumnExists($tableName, $columnName)) && ((isInString('DROP', $sql))) || (isInString('CHANGE', $sql)))) && ($columnName != 'KEY')) {
+ // Abort here because it is alreay there
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'Skipped: sql=' . $sql . ',columnName=' . $columnName . ',idx=' . $idx);
+ break;
+ } elseif ((!ifSqlTableColumnExists($tableName, $columnName)) && (isInString('DROP', $sql))) {
+ // 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, we better log it
+ logDebugMessage(__FUNCTION__, __LINE__, 'Possible problem: ' . $sql . ',hasZeroNums=' . intval(ifSqlTableColumnExists($tableName, $columnName)) . '');
+ }
+ } // END - foreach
+ } elseif ((getTableType() == 'InnoDB') && (isInString('FULLTEXT', $sql))) {
+ // Skip this query silently because InnoDB does not understand fulltext indexes
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, sprintf("Skipped FULLTEXT: sql=%s,tableName=%s,hasZeroNums=%d,file=%s,line=%s", $sql, $tableName, intval((is_bool($result)) ? 0 : ifSqlTableColumnExists($columnName)), $F, $L));
+ } elseif ($isAlterIndex === TRUE) {
+ // And column name as well without backticks
+ $keyName = str_replace('`', '', $tableArray[5]);
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'keyName=' . $keyName . ',tableArray=<pre>' . print_r($tableArray, TRUE) . '</pre>');
+
+ // Is this "UNIQUE" or so? FULLTEXT has been handled the elseif() block above
+ if (in_array(strtoupper($tableArray[4]), array('INDEX', 'UNIQUE', 'KEY', 'FULLTEXT'))) {
+ // Init loop
+ $begin = 1;
+ $keyName = ',';
+ while (isInString(',', $keyName)) {
+ // Use last
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'keyName=' . $keyName . 'begin=' . $begin . ' - BEFORE');
+ $keyName = str_replace('`', '', $tableArray[count($tableArray) - $begin]);
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'keyName=' . $keyName . 'begin=' . $begin . ' - BETWEEN');
+
+ // Remove brackes
+ $keyName = str_replace(array('(', ')'), array('', ''), $keyName);
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'keyName=' . $keyName . 'begin=' . $begin . ' - AFTER');
+
+ // Continue
+ $begin++;
+ } // END while
+ } // END - if
+
+ // Shall we run it?
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'tableName=' . $tableName . ', tableArray[3]=' . $tableArray[3] . ',keyName=' . $keyName);
+ if (($tableArray[3] == 'ADD') && (!ifSqlTableIndexExist($tableName, $keyName))) {
+ // Send it to the SQL_QUERY() function to add it
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'sql=' . $sql . ' - ADDING!');
+ $result = SQL_QUERY($sql, $F, $L, $enableCodes);
+ } elseif (($tableArray[3] == 'DROP') && (ifSqlTableIndexExist($tableName, $keyName))) {
+ // Send it to the SQL_QUERY() function to drop it
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'sql=' . $sql . ' - DROPPING!');
+ $result = SQL_QUERY($sql, $F, $L, $enableCodes);
+ } else {
+ // Not executed
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'Not executed: ' . $sql);
+ }
+ } else {
+ // Other ALTER TABLE query
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, $sql);
+ $result = SQL_QUERY($sql, $F, $L, $enableCodes);
+ }
+
+ // Return result
+ return $result;
+}
+
+// Getter for SQL link
+function SQL_GET_LINK () {
+ // Init link
+ $link = NULL;
+
+ // Is it in the globals?
+ if (isset($GLOBALS['__sql_link'])) {
+ // Then take it
+ $link = $GLOBALS['__sql_link'];
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'link[]=' . gettype($link) . ' - FROM GLOBALS!');
+ } // END - if
+
+ // Return it
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'link[]=' . gettype($link) . ' - EXIT!');
+ return $link;
+}
+
+// Setter for link
+function SQL_SET_LINK ($F, $L, $link) {
+ //* DEBUG: */ logDebugMessage($F . ':' . __FUNCTION__, $L . ':' . __LINE__, 'link[]=' . gettype($link) . ' - ENTERED!');
+ // Is this a resource or null?
+ if ((ifFatalErrorsDetected()) && (isInstallationPhase())) {
+ // This may happen in installation phase
+ //* DEBUG: */ logDebugMessage($F . ':' . __FUNCTION__, $L . ':' . __LINE__, 'Some fatal errors detected in installation phase.');
+ return;
+ } elseif ((!is_resource($link)) && (!is_null($link))) {
+ // This should never happen!
+ reportBug($F . ':' . __FUNCTION__, $L . ':' . __LINE__, sprintf("Type of link is not resource or null, type=%s", gettype($link)));
+ } // END - if
+
+ // Set it
+ $GLOBALS['__sql_link'] = $link;
+
+ // Re-init cache
+ $GLOBALS['__is_sql_link_up'] = is_resource($link);
+ //* DEBUG: */ logDebugMessage($F . ':' . __FUNCTION__, $L . ':' . __LINE__, '__is_sql_link_up=' . intval($GLOBALS['__is_sql_link_up']) . ' - EXIT!');
+}
+
+// Checks if the link is up
+function SQL_IS_LINK_UP () {
+ // Is there cached this?
+ if (!isset($GLOBALS['__is_sql_link_up'])) {
+ // Something bad went wrong
+ reportBug(__FUNCTION__, __LINE__, 'Called before SQL_SET_LINK() was called!');
+ } // END - if
+
+ // Return the result
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, '__is_sql_link_up=' . intval($GLOBALS['__is_sql_link_up']) . ' - EXIT!');
+ return $GLOBALS['__is_sql_link_up'];
+}
+
+// Wrapper function to make code more readable
+function SQL_HASZERONUMS ($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) {
+ // Debug message
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'sqlString=' . $sqlString . ',enableCodes=' . intval($enableCodes) . ' - ENTERED!');
+
+ // Is it already cached?
+ if (!isset($GLOBALS['sql_strings']['' . $sqlString . ''])) {
+ // Preserve escaping and compile URI codes+config+expression code
+ $sqlString2 = FILTER_COMPILE_EXPRESSION_CODE(FILTER_COMPILE_CONFIG($sqlString));
+
+ // Debug message
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'sqlString2=' . $sqlString2);
+
+ // Do final compilation and revert {ESCAPE}
+ $GLOBALS['sql_strings']['' . $sqlString . ''] = doFinalCompilation($sqlString2, FALSE, $enableCodes);
+ } else {
+ // Log message
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'sqlString=' . $sqlString . ' - CACHE!');
+ }
+
+ // Debug message
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'sqlString=' . $sqlString . ',enableCodes=' . intval($enableCodes) . ',sql_strings=' . $GLOBALS['sql_strings']['' . $sqlString . ''] . ' - EXIT!');
+
+ // Return it
+ return $GLOBALS['sql_strings']['' . $sqlString . ''];
+}
+
+// Creates a MySQL TIMESTAMP compatible string from given Uni* timestamp
+function SQL_EPOCHE_TO_TIMESTAMP ($timestamp) {
+ return generateDateTime($timestamp, 7);
+}
+
+// Check if there is a SQL table created
+function ifSqlTableExists ($tableName) {
+ // Make sure double-prefixes are being removed
+ $tableName = str_replace('{?_MYSQL_PREFIX?}_', '', $tableName);
+
+ // Log message
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'tableName=' . $tableName . ' - ENTERED!');
+
+ // Is there cache?
+ if (!isset($GLOBALS[__FUNCTION__][$tableName])) {
+ // Check if the table is there
+ $result = SQL_QUERY_ESC("SHOW TABLES FROM `{?__DB_NAME?}` WHERE `Tables_in_{?__DB_NAME?}`='{?_MYSQL_PREFIX?}_%s'",
+ array($tableName), __FUNCTION__, __LINE__);
+
+ // Is a link there?
+ if (!is_resource($result)) {
+ // Is installation phase?
+ if (isInstallationPhase()) {
+ // Then silently abort here
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'result[]=' . gettype($result) . ',isLinkUp=' . intval(SQL_IS_LINK_UP()) . ',tableName=' . $tableName . ' - Returning FALSE ...');
+ return FALSE;
+ } else {
+ // Please report this
+ reportBug(__FUNCTION__, __LINE__, 'result[]=' . gettype($result) . ' is not a resource.');
+ }
+ } // END - if
+
+ // Is there an entry?
+ $GLOBALS[__FUNCTION__][$tableName] = (SQL_NUMROWS($result) == 1);
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'tableName=' . $tableName . ',numRows=' . intval($GLOBALS[__FUNCTION__][$tableName]));
+ } // END - if
+
+ // Return cache
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'tableName=' . $tableName . ',result=' . intval($GLOBALS[__FUNCTION__][$tableName]) . ' - EXIT!');
+ return $GLOBALS[__FUNCTION__][$tableName];
+}
+
+// Is a table column there?
+function ifSqlTableColumnExists ($tableName, $columnName, $forceFound = FALSE) {
+ // Remove back-ticks
+ $columnName = str_replace('`', '', $columnName);
+
+ // Debug message
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'tableName=' . $tableName . ',columnName=' . $columnName . ' - ENTERED!');
+
+ // If the table is not there, it is okay
+ if (!ifSqlTableExists($tableName)) {
+ // Then abort here
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'Table ' . $tableName . ' does not exist, columnName=' . $columnName . ',forceFound=' . intval($forceFound));
+ return (($forceFound === FALSE) && (isInstallationPhase()));
+ } // END - if
+
+ // Get column information
+ $result = SQL_QUERY_ESC("SHOW COLUMNS FROM `%s` LIKE '%s'",
+ array(
+ $tableName,
+ $columnName
+ ), __FUNCTION__, __LINE__);
+
+ // Is a link there?
+ if (!is_resource($result)) {
+ // Is installation phase?
+ if (isInstallationPhase()) {
+ // Then silently abort here
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'result[]=' . gettype($result) . ',isLinkUp=' . intval(SQL_IS_LINK_UP()) . ',tableName=' . $tableName . ',columnName=' . $columnName . ' - Returning FALSE ...');
+ return $forceFound;
+ } else {
+ // Please report this
+ reportBug(__FUNCTION__, __LINE__, 'result[]=' . gettype($result) . ' is not a resource.');
+ }
+ } // END - if
+
+ // Determine it
+ $doesExist = (!SQL_HASZERONUMS($result));
+
+ // Free result
+ SQL_FREERESULT($result);
+
+ // Return cache
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'tableName=' . $tableName . ',columnName=' . $columnName . ',doesExist=' . intval($doesExist) . ' - EXIT!');
+ return $doesExist;
+}
+
+// Checks depending on the mode if the index is there
+function ifSqlTableIndexExist ($tableName, $keyName, $forceFound = FALSE) {
+ // Remove back-ticks
+ $keyName = str_replace('`', '', $keyName);
+
+ // Debug message
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'tableName=' . $tableName . ',keyName=' . $keyName . ' - ENTERED!');
+
+ // If the table is not there, it is okay
+ if (!ifSqlTableExists($tableName)) {
+ // Then abort here
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'Table ' . $tableName . ' does not exist, keyName=' . $keyName . ',forceFound=' . intval($forceFound));
+ return (($forceFound === FALSE) && (isInstallationPhase()));
+ } // END - if
+
+ // Show indexes
+ $result = SQL_QUERY_ESC("SHOW INDEX FROM `%s`", array($tableName), __FUNCTION__, __LINE__);
+
+ // Is a link there?
+ if (!is_resource($result)) {
+ // Is installation phase?
+ if (isInstallationPhase()) {
+ // Then silently abort here
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'result[]=' . gettype($result) . ',isLinkUp=' . intval(SQL_IS_LINK_UP()) . ',tableName=' . $tableName . ',keyName=' . $keyName . ' - Returning FALSE ...');
+ return $forceFound;
+ } else {
+ // Please report this
+ reportBug(__FUNCTION__, __LINE__, 'result[]=' . gettype($result) . ' is not a resource.');
+ }
+ } // END - if
+
+ // The key is not found by default
+ $doesExist = FALSE;
+
+ // Walk through all
+ while ($content = SQL_FETCHARRAY($result)) {
+ // Is it the requested one?
+ if ($content['Key_name'] == $keyName) {
+ // Then it is found and exit
+ $doesExist = TRUE;
+ break;
+ } // END - if
+ } // END - while
+
+ // Free result
+ SQL_FREERESULT($result);
+
+ // Return cache
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'tableName=' . $tableName . ',keyName=' . $keyName . ',doesExist=' . intval($doesExist) . ' - EXIT!');
+ return $doesExist;
+}
+
+// Init database layer
+function initDatabaseLayer () {
+ // Set all required variables:
+ $GLOBALS['last_sql_error'] = '';
+}
+
+// Get last SQL error
+function getLastSqlError () {
+ return $GLOBALS['last_sql_error'];
+}
+
+// Gets an array (or false if none is found) from all supported engines
+function getArrayFromSupportedSqlEngines ($requestedEngine = 'ALL') {
+ // Init array
+ $engines = array();
+
+ // This also worked, now we need to check if the selected database type is supported
+ $result = SQL_QUERY('SHOW ENGINES', __FUNCTION__, __LINE__);
+
+ // Are there entries? (Bad if not)
+ if (!SQL_HASZERONUMS($result)) {
+ // Load all and check for active entries
+ while ($content = SQL_FETCHARRAY($result)) {
+ // Debug message
+ //* DEBUG: */ logDebugMessage(__FUNCTION__, __LINE__, 'support=' . $requestedEngine . ',Engine=' . $content['Engine'] . ',Support=' . $content['Support']);
+
+ // Is this supported?
+ if ((($requestedEngine == 'ALL') || ($content['Engine'] == $requestedEngine)) && (in_array($content['Support'], array('YES', 'DEFAULT')))) {
+ // Add it
+ array_push($engines, $content);
+ } elseif (isDebugModeEnabled()) {
+ // Log it away in debug mode
+ logDebugMessage(__FUNCTION__, __LINE__, 'Engine ' . $content['Engine'] . ' is not supported (' . $content['Supported'] . ' - ' . $requestedEngine . ')');
+ }
+ } // END - if
+ } else {
+ // No engines! :(
+ $engines = FALSE;
+ }
+
+ // Free result
+ SQL_FREERESULT($result);
+
+ // Return result
+ return $engines;
+}
+
// [EOF]
?>