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ENHANCEMENT Added support for sqlsrv_num_rows in MSSQLQuery::numRecords() - this feature was added in version 1.1 of the sqlsrv driver

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MINOR Documentation updates
This commit is contained in:
Sean Harvey 2009-10-26 23:44:08 +00:00
parent 2b7c27382d
commit 1157f3e0db
1 changed files with 14 additions and 10 deletions
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24
code/MSSQLDatabase.php
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@ -629,7 +629,7 @@ class MSSQLDatabase extends SS_Database {
* Create an index on a table.
* @param string $tableName The name of the table.
* @param string $indexName The name of the index.
* @param string $indexSpec The specification of the index, see Database::requireIndex() for more details.
* @param string $indexSpec The specification of the index, see SS_Database::requireIndex() for more details.
*/
public function createIndex($tableName, $indexName, $indexSpec) {
$this->query($this->getIndexSqlDefinition($tableName, $indexName, $indexSpec));
@ -698,7 +698,7 @@ class MSSQLDatabase extends SS_Database {
* Alter an index on a table.
* @param string $tableName The name of the table.
* @param string $indexName The name of the index.
* @param string $indexSpec The specification of the index, see Database::requireIndex() for more details.
* @param string $indexSpec The specification of the index, see SS_Database::requireIndex() for more details.
*/
public function alterIndex($tableName, $indexName, $indexSpec) {
$indexSpec = trim($indexSpec);
@ -1381,10 +1381,7 @@ class MSSQLQuery extends SS_Query {
if($this->handle) sqlsrv_free_stmt($this->handle);
}
}
/**
* Please see the comments below for numRecords
*/
public function seek($row) {
if($this->mssql) {
return mssql_data_seek($this->handle, $row);
@ -1393,22 +1390,29 @@ class MSSQLQuery extends SS_Query {
}
}
/*
/**
* If we're running the sqlsrv set of functions, then the dataobject set is a forward-only cursor
* Therefore, we do not have access to the number of rows that this result contains
* This is (usually) called from Database::rewind(), which in turn seems to be called when a foreach...
* This is (usually) called from SS_Query::rewind(), which in turn seems to be called when a foreach...
* is started on a recordset
*
* If you are using SQLSRV, this functon will just return a true or false based on whether you got
* If you are using sqlsrv 1.0, this will just return a true or false based on whether you got
* /ANY/ rows. UNLESS you set $this->forceNumRows to true, in which case, it will loop over the whole
* rowset, cache it, and then do the count on that. This is probably resource intensive.
*
* For this function, and seek() (above), we will be returning false.
* If you are using sqlsrv 1.1 or greater, then disregard the above, because sqlsrv_num_rows() was
* added in version 1.1 of the driver.
*
* @return boolean|int
*/
public function numRecords() {
if($this->mssql) {
return mssql_num_rows($this->handle);
} else {
if(function_exists('sqlsrv_num_rows')) {
return sqlsrv_num_rows($this->handle);
}
// Setting forceNumRows to true will cache all records, but will
// be able to give a reliable number of results found.
if (isset($this->forceNumRows) && $this->forceNumRows) {