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feature:2359 add single_update and single_insert functions

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git-svn-id: http://piwigo.org/svn/trunk@11485 68402e56-0260-453c-a942-63ccdbb3a9ee
This commit is contained in:
mistic100
2011-06-22 15:56:19 +00:00
parent 8d22af01b9
commit 029688227b
4 changed files with 423 additions and 34 deletions
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include/dblayer/functions_sqlite.inc.php
+112 -15
View File
@@ -290,13 +290,13 @@ UPDATE '.$tablename.'
if (isset($data[$key]) and $data[$key] != '')
{
$query.= $separator.$key.' = \''.$data[$key].'\'';
$query.= $separator.$key.' = \''.$data[$key].'\'';
}
else
{
if ($flags & MASS_UPDATES_SKIP_EMPTY )
continue; // next field
$query.= "$separator$key = NULL";
if ( $flags & MASS_UPDATES_SKIP_EMPTY )
continue; // next field
$query.= "$separator$key = NULL";
}
$is_first = false;
}
@@ -307,25 +307,84 @@ UPDATE '.$tablename.'
$is_first = true;
foreach ($dbfields['primary'] as $key)
{
if (!$is_first)
if (!$is_first)
{
$query.= ' AND ';
}
if ( isset($data[$key]) )
$query.= ' AND ';
}
if ( isset($data[$key]) )
{
$query.= $key.' = \''.$data[$key].'\'';
}
else
$query.= $key.' = \''.$data[$key].'\'';
}
else
{
$query.= $key.' IS NULL';
}
$is_first = false;
$query.= $key.' IS NULL';
}
$is_first = false;
}
pwg_query($query);
}
}
}
/**
* updates on line in a table
*
* @param string table_name
* @param array dbfields
* @param array data
* @param int flags - if MASS_UPDATES_SKIP_EMPTY - empty values do not overwrite existing ones
* @return void
*/
function single_update($tablename, $dbfields, $data, $flags=0)
{
if (count($data) == 0)
return;
$query = '
UPDATE '.$tablename.'
SET ';
$is_first = true;
foreach ($dbfields['update'] as $key)
{
$separator = $is_first ? '' : ",\n ";
if (isset($data[$key]) and $data[$key] != '')
{
$query.= $separator.$key.' = \''.$data[$key].'\'';
}
else
{
if ( $flags & MASS_UPDATES_SKIP_EMPTY )
continue; // next field
$query.= "$separator$key = NULL";
}
$is_first = false;
}
if (!$is_first)
{// only if one field at least updated
$query.= '
WHERE ';
$is_first = true;
foreach ($dbfields['primary'] as $key)
{
if (!$is_first)
{
$query.= ' AND ';
}
if ( isset($data[$key]) )
{
$query.= $key.' = \''.$data[$key].'\'';
}
else
{
$query.= $key.' IS NULL';
}
$is_first = false;
}
pwg_query($query);
}
}
/**
* inserts multiple lines in a table
@@ -335,7 +394,6 @@ UPDATE '.$tablename.'
* @param array inserts
* @return void
*/
function mass_inserts($table_name, $dbfields, $datas)
{
if (count($datas) != 0)
@@ -391,6 +449,45 @@ INSERT INTO '.$table_name.'
}
}
/**
* inserts one line in a table
*
* @param string table_name
* @param array dbfields
* @param array insert
* @return void
*/
function single_insert($table_name, $dbfields, $insert)
{
if (count($insert) != 0)
{
$query = '
INSERT INTO '.$table_name.'
('.implode(',', $dbfields).')
VALUES';
$query .= '(';
foreach ($dbfields as $field_id => $dbfield)
{
if ($field_id > 0)
{
$query .= ',';
}
if (!isset($insert[$dbfield]) or $insert[$dbfield] === '')
{
$query .= 'NULL';
}
else
{
$query .= "'".$insert[$dbfield]."'";
}
}
$query .= ')';
pwg_query($query);
}
}
/**
* Do maintenance on all PWG tables
*