×
This forum has been locked. Please submit new Feature Requests on GitHub: github.com/Jensen-Technologies/component-creator-issues/issues
Foreign key field additional SQL parameters
RATE IT SERVICES, SIA
New Member
Posts: 2
8 năm 6 tháng trước #1295
bởi RATE IT SERVICES, SIA
Foreign key field additional SQL parameters was created by RATE IT SERVICES, SIA
Hi there!
Would be great if a foreign key field could have additional parameter for select query.
Now we select table, key field and value field ..
But how about extra query? For example, I want to select only those records where certain fields have specific value.
SELECT id, name from #__sometable where otherfield=1 ..
I see that this could be possible with SQL list, but then there's no EMPTY RECORD (like Please select value (0) ) ..
I tried to do so with UNION ..
(SELECT '0' as id, 'Please select' as name from #__sometable LIMIT 1) UNION (SELECT id, name from #__sometable where parentid=0)
But then I get mysql errors when any field has selected that parentid field .. HAVING id='1'
thanks
Would be great if a foreign key field could have additional parameter for select query.
Now we select table, key field and value field ..
But how about extra query? For example, I want to select only those records where certain fields have specific value.
SELECT id, name from #__sometable where otherfield=1 ..
I see that this could be possible with SQL list, but then there's no EMPTY RECORD (like Please select value (0) ) ..
I tried to do so with UNION ..
(SELECT '0' as id, 'Please select' as name from #__sometable LIMIT 1) UNION (SELECT id, name from #__sometable where parentid=0)
But then I get mysql errors when any field has selected that parentid field .. HAVING id='1'
thanks
Vui lòng Đăng nhập hoặc Tạo tài khoản để tham gia cuộc hội thoại.
RATE IT SERVICES, SIA
New Member
Posts: 2
8 năm 6 tháng trước #1297
bởi RATE IT SERVICES, SIA
Replied by RATE IT SERVICES, SIA on topic Foreign key field additional SQL parameters
administrator\models\forms\tablename.xml
add new attribute to field : where="parent_id=0"
administrator\models\fields\foreignkey.php
private $where_extra;
protected function getInput()
{
.......
$this->where_extra = (string) $this->getAttribute('where');
........
if($this->where_extra != '')
{
$query->where($this->where_extra);
}
....
}
works fine for me, it's just annoying to modify all this after rebuild ..
add new attribute to field : where="parent_id=0"
administrator\models\fields\foreignkey.php
private $where_extra;
protected function getInput()
{
.......
$this->where_extra = (string) $this->getAttribute('where');
........
if($this->where_extra != '')
{
$query->where($this->where_extra);
}
....
}
works fine for me, it's just annoying to modify all this after rebuild ..
Vui lòng Đăng nhập hoặc Tạo tài khoản để tham gia cuộc hội thoại.
Jeremy Morris
New Member
Posts: 4
8 năm 3 tháng trước #1399
bởi Jeremy Morris
Replied by Jeremy Morris on topic Foreign key field additional SQL parameters
I have also added a "where" attribute to limit foreignkey results based on a condition.
// If the return is to be limited by condition
$this->where = ( trim ( $this->getAttribute('where') ) <> '' ) ? (string) trim( $this->getAttribute('where') ) : NULL;
.......
// add where filtering, if set
if ( $this->where ) {
$query->where($this->where);
} // end if
I have also found that displaying a completely empty select box is pretty useless so I set empty foreignkey fields to hide.
if ( count( $options ) ) {
$html = JHtml::_('select.genericlist', $options, $this->name, $input_options, 'value', 'text', $value, $this->id);
} else {
$html = '';
$this->hidden = true;
}
An additional attribute, such as "hideempty", could be helpful.
// If the return is to be limited by condition
$this->where = ( trim ( $this->getAttribute('where') ) <> '' ) ? (string) trim( $this->getAttribute('where') ) : NULL;
.......
// add where filtering, if set
if ( $this->where ) {
$query->where($this->where);
} // end if
I have also found that displaying a completely empty select box is pretty useless so I set empty foreignkey fields to hide.
if ( count( $options ) ) {
$html = JHtml::_('select.genericlist', $options, $this->name, $input_options, 'value', 'text', $value, $this->id);
} else {
$html = '';
$this->hidden = true;
}
An additional attribute, such as "hideempty", could be helpful.
Vui lòng Đăng nhập hoặc Tạo tài khoản để tham gia cuộc hội thoại.
Thời gian tải trang: 0.050 giây