diff --git a/lib/adodb/drivers/adodb-mssql_n.inc.php b/lib/adodb/drivers/adodb-mssql_n.inc.php index 1ecaf558688..e740aacffab 100644 --- a/lib/adodb/drivers/adodb-mssql_n.inc.php +++ b/lib/adodb/drivers/adodb-mssql_n.inc.php @@ -1,342 +1,171 @@ -_appendN($sql); - - return ADODB_mssql::_query($sql,$inputarr); - - } - - - - /** - - * This function will intercept all the literals used in the SQL, prepending the "N" char to them - - * in order to allow mssql to store properly data sent in the correct UCS-2 encoding (by freeTDS - - * and ODBTP) keeping SQL compatibility at ADOdb level (instead of hacking every project to add - - * the "N" notation when working against MSSQL. - - * - - * Note that this hack only must be used if ALL the char-based columns in your DB are of type nchar, - - * nvarchar and ntext - - */ - - function _appendN($sql) { - - - - $result = $sql; - - - - /// Check we have some single quote in the query. Exit ok. - - if (strpos($sql, SINGLEQUOTE) === false) { - - return $sql; - - } - - - - /// Check we haven't an odd number of single quotes (this can cause problems below - - /// and should be considered one wrong SQL). Exit with debug info. - - if ((substr_count($sql, SINGLEQUOTE) & 1)) { - - if ($this->debug) { - - ADOConnection::outp("{$this->databaseType} internal transformation: not converted. Wrong number of quotes (odd)"); - - } - - return $sql; - - } - - - - /// Check we haven't any backslash + single quote combination. It should mean wrong - - /// backslashes use (bad magic_quotes_sybase?). Exit with debug info. - - $regexp = '/(\\\\' . SINGLEQUOTE . '[^' . SINGLEQUOTE . '])/'; - - if (preg_match($regexp, $sql)) { - - if ($this->debug) { - - ADOConnection::outp("{$this->databaseType} internal transformation: not converted. Found bad use of backslash + single quote"); - - } - - return $sql; - - } - - - - /// Remove pairs of single-quotes - - $pairs = array(); - - $regexp = '/(' . SINGLEQUOTE . SINGLEQUOTE . ')/'; - - preg_match_all($regexp, $result, $list_of_pairs); - - if ($list_of_pairs) { - - foreach (array_unique($list_of_pairs[0]) as $key=>$value) { - - $pairs['<@#@#@PAIR-'.$key.'@#@#@>'] = $value; - - } - - if (!empty($pairs)) { - - $result = str_replace($pairs, array_keys($pairs), $result); - - } - - } - - - - /// Remove the rest of literals present in the query - - $literals = array(); - - $regexp = '/(N?' . SINGLEQUOTE . '.*?' . SINGLEQUOTE . ')/is'; - - preg_match_all($regexp, $result, $list_of_literals); - - if ($list_of_literals) { - - foreach (array_unique($list_of_literals[0]) as $key=>$value) { - - $literals['<#@#@#LITERAL-'.$key.'#@#@#>'] = $value; - - } - - if (!empty($literals)) { - - $result = str_replace($literals, array_keys($literals), $result); - - } - - } - - - - - - /// Analyse literals to prepend the N char to them if their contents aren't numeric - - if (!empty($literals)) { - - foreach ($literals as $key=>$value) { - - if (!is_numeric(trim($value, SINGLEQUOTE))) { - - /// Non numeric string, prepend our dear N - - $literals[$key] = 'N' . trim($value, 'N'); //Trimming potentially existing previous "N" - - } - - } - - } - - - - /// Re-apply literals to the text - - if (!empty($literals)) { - - $result = str_replace(array_keys($literals), $literals, $result); - - } - - - - /// Any pairs followed by N' must be switched to N' followed by those pairs - - /// (or strings beginning with single quotes will fail) - - $result = preg_replace("/((<@#@#@PAIR-(\d+)@#@#@>)+)N'/", "N'$1", $result); - - - - /// Re-apply pairs of single-quotes to the text - - if (!empty($pairs)) { - - $result = str_replace(array_keys($pairs), $pairs, $result); - - } - - - - /// Print transformation if debug = on - - if ($result != $sql && $this->debug) { - - ADOConnection::outp("{$this->databaseType} internal transformation:
{$sql}
to
{$result}"); - - } - - - - return $result; - - } - -} - - - -class ADORecordset_mssql_n extends ADORecordset_mssql { - - var $databaseType = "mssql_n"; - - function ADORecordset_mssql_n($id,$mode=false) - - { - - $this->ADORecordset_mssql($id,$mode); - - } - -} - -?> - +_appendN($sql); + return ADODB_mssql::_query($sql,$inputarr); + } + + /** + * This function will intercept all the literals used in the SQL, prepending the "N" char to them + * in order to allow mssql to store properly data sent in the correct UCS-2 encoding (by freeTDS + * and ODBTP) keeping SQL compatibility at ADOdb level (instead of hacking every project to add + * the "N" notation when working against MSSQL. + * + * Note that this hack only must be used if ALL the char-based columns in your DB are of type nchar, + * nvarchar and ntext + */ + function _appendN($sql) { + + $result = $sql; + + /// Check we have some single quote in the query. Exit ok. + if (strpos($sql, SINGLEQUOTE) === false) { + return $sql; + } + + /// Check we haven't an odd number of single quotes (this can cause problems below + /// and should be considered one wrong SQL). Exit with debug info. + if ((substr_count($sql, SINGLEQUOTE) & 1)) { + if ($this->debug) { + ADOConnection::outp("{$this->databaseType} internal transformation: not converted. Wrong number of quotes (odd)"); + } + return $sql; + } + + /// Check we haven't any backslash + single quote combination. It should mean wrong + /// backslashes use (bad magic_quotes_sybase?). Exit with debug info. + $regexp = '/(\\\\' . SINGLEQUOTE . '[^' . SINGLEQUOTE . '])/'; + if (preg_match($regexp, $sql)) { + if ($this->debug) { + ADOConnection::outp("{$this->databaseType} internal transformation: not converted. Found bad use of backslash + single quote"); + } + return $sql; + } + + /// Remove pairs of single-quotes + $pairs = array(); + $regexp = '/(' . SINGLEQUOTE . SINGLEQUOTE . ')/'; + preg_match_all($regexp, $result, $list_of_pairs); + if ($list_of_pairs) { + foreach (array_unique($list_of_pairs[0]) as $key=>$value) { + $pairs['<@#@#@PAIR-'.$key.'@#@#@>'] = $value; + } + if (!empty($pairs)) { + $result = str_replace($pairs, array_keys($pairs), $result); + } + } + + /// Remove the rest of literals present in the query + $literals = array(); + $regexp = '/(N?' . SINGLEQUOTE . '.*?' . SINGLEQUOTE . ')/is'; + preg_match_all($regexp, $result, $list_of_literals); + if ($list_of_literals) { + foreach (array_unique($list_of_literals[0]) as $key=>$value) { + $literals['<#@#@#LITERAL-'.$key.'#@#@#>'] = $value; + } + if (!empty($literals)) { + $result = str_replace($literals, array_keys($literals), $result); + } + } + + + /// Analyse literals to prepend the N char to them if their contents aren't numeric + if (!empty($literals)) { + foreach ($literals as $key=>$value) { + if (!is_numeric(trim($value, SINGLEQUOTE))) { + /// Non numeric string, prepend our dear N + $literals[$key] = 'N' . trim($value, 'N'); //Trimming potentially existing previous "N" + } + } + } + + /// Re-apply literals to the text + if (!empty($literals)) { + $result = str_replace(array_keys($literals), $literals, $result); + } + + /// Any pairs followed by N' must be switched to N' followed by those pairs + /// (or strings beginning with single quotes will fail) + $result = preg_replace("/((<@#@#@PAIR-(\d+)@#@#@>)+)N'/", "N'$1", $result); + + /// Re-apply pairs of single-quotes to the text + if (!empty($pairs)) { + $result = str_replace(array_keys($pairs), $pairs, $result); + } + + /// Print transformation if debug = on + if ($result != $sql && $this->debug) { + ADOConnection::outp("{$this->databaseType} internal transformation:
{$sql}
to
{$result}"); + } + + return $result; + } +} + +class ADORecordset_mssql_n extends ADORecordset_mssql { + var $databaseType = "mssql_n"; + function ADORecordset_mssql_n($id,$mode=false) + { + $this->ADORecordset_mssql($id,$mode); + } +} +?>