I have place model & entry model that entry is parent
everything is fine but how can I delete the result row $categoryPlacements
in place model:
$entryModel = new Model_EntryModel();
$entryRow = $entryModel->find ( $entryId )->current ();
$categoryPlacements = $entryRow->findDependentRowset($this);
in this case i want to delete the $categoryPlacements result in place model
I can use categoryPlacements->toarray() and then delete but is another easy way?
Foering Keys at the database could solve this issue.
$categoryPlacements = $entryRow->findDependentRowset($this);
foreach ($categoryPlacements as $placement){
$where = $db->getAdapter()->quoteInto('id = ?',$placement->id);
$db->delete($where);
}
Sorry if this is not what you need, regard´s.
Related
I'm trying to create new vector layer with the same fields as contained in original layer.
original_layer_fields_list = original_layer.fields().toList()
new_layer = QgsVectorLayer("Point", "new_layer", "memory")
pr = new_layer.dataProvider()
However, when I try:
for fld in original_layer_fields_list:
type_name = fld.typeName()
pr.addAttributes([QgsField(name = fld.name(), typeName = type_name)])
new_layer.updateFields()
QgsProject.instance().addMapLayer(new_layer)
I get a layer with no fields in attribute table.
If I try something like:
for fld in original_layer_fields_list:
if fld.type() == 2:
pr.addAttributes([QgsField(name = fld.name(), type = QVariant.Int)])
new_layer.updateFields()
QgsProject.instance().addMapLayer(new_layer)
... it works like charm.
Anyway ... I'd rather like the first solution to work in case if one wants to automate the process and not check for every field type and then find an appropriate code. Besides - I really am not able to find any documentation about codes for data types. I managed to find this post https://gis.stackexchange.com/questions/353975/get-only-fields-with-datatype-int-in-pyqgis where in comments Kadir pointed on this sourcecode (https://codebrowser.dev/qt5/qtbase/src/corelib/kernel/qvariant.h.html#QVariant::Type).
I'd really be thankful for any kind of direction.
I'm in Zend Framework 2, trying to get the last inserted id after inserting using postgresql PDO. The insert works fine unless I add a SequenceFeature, like this:
class LogTable extends AbstractTableGateway
{
protected $table = 'log';
public function __construct(Adapter $adapter)
{
$this->adapter = $adapter;
$this->featureSet = new Feature\FeatureSet();
$this->featureSet->addFeature(new Feature\SequenceFeature('id','log_id_seq'));
$this->resultSetPrototype = new ResultSet();
$this->resultSetPrototype->setArrayObjectPrototype(new Log());
print_r($this->getFeatureSet());
$this->initialize();
}
When I later do an insert like this:
$this->insert($data);
It fails, because INSERT INTO "log" () VALUES (), so for some reason zf2 is nulling out the columns and values to insert, but only if I add that SequenceFeature.
If I don't add that feature, the insert works fine, but I can't get the last sequence value. Debugging the Zend/Db/Sql/Insert.php, I found that the values function is accessed twice with the SequenceFeature in there, but only once when it's not in there. For some reason when the SequenceFeature is there, all the insert columns and values are nulled out, possibly because of this double call? I haven't investigated further yet, but maybe it's updating the sequence and then losing the data when making the insert?
Is this a bug, or is there just something I'm missing?
Screw it! We'll do it live!
Definitely not the best solution, but this works. I just cut and pasted the appropriate code from Zend/Db/TableGateway/Feature/SequenceFeature.php and added it as a function to my LogTable class:
public function nextSequenceId()
{
$sql = "SELECT NEXTVAL('log_id_seq')";
$statement = $this->adapter->createStatement();
$statement->prepare($sql);
$result = $statement->execute();
$sequence = $result->getResource()->fetch(\PDO::FETCH_ASSOC);
return $sequence['nextval'];
}
Then I called it before my insert in my LogController class:
$data['id'] = $this->nextSequenceId();
$id = $this->insert($data);
Et voila! Hopefully someone else will explain to me how I'm really supposed to do it, but this will work just fine in the interim.
I'm using insertRow to populate an empty spreadsheet, it starts off taking about 1 second to insert a row and then slows down to around 5 seconds after 150 rows or so.
Has anyone experienced this kind of behaviour?
There aren't any calculations on the data in the spreadsheet that could be getting longer with more data.
Thanks!
I'll try to be strict.
If you take a look at class "Zend_Gdata_Spreadsheets" you figure that the method insertRow() is written in a very not optimal way. See:
public function insertRow($rowData, $key, $wkshtId = 'default')
{
$newEntry = new Zend_Gdata_Spreadsheets_ListEntry();
$newCustomArr = array();
foreach ($rowData as $k => $v) {
$newCustom = new Zend_Gdata_Spreadsheets_Extension_Custom();
$newCustom->setText($v)->setColumnName($k);
$newEntry->addCustom($newCustom);
}
$query = new Zend_Gdata_Spreadsheets_ListQuery();
$query->setSpreadsheetKey($key);
$query->setWorksheetId($wkshtId);
$feed = $this->getListFeed($query);
$editLink = $feed->getLink('http://schemas.google.com/g/2005#post');
return $this->insertEntry($newEntry->saveXML(), $editLink->href, 'Zend_Gdata_Spreadsheets_ListEntry');
}
In short, it loads your whole spreadsheet just in order to learn this value $editLink->href in order to post new row into your spreadsheet.
The cure is to avoid using this method insertRow.
Instead, get your $editLink->href once in your code and then insert new rows each time by reproducing the rest of behaviour of this method. I.e, in your code instead of $service->insertRow() use following:
//get your $editLink once:
$query = new Zend_Gdata_Spreadsheets_ListQuery();
$query->setSpreadsheetKey($key);
$query->setWorksheetId($wkshtId);
$query->setMaxResults(1);
$feed = $service->getListFeed($query);
$editLink = $feed->getLink('http://schemas.google.com/g/2005#post');
....
//instead of $service->insertRow:
$newEntry = new Zend_Gdata_Spreadsheets_ListEntry();
$newCustomArr = array();
foreach ($rowData as $k => $v) {
$newCustom = new Zend_Gdata_Spreadsheets_Extension_Custom();
$newCustom->setText($v)->setColumnName($k);
$newEntry->addCustom($newCustom);
}
$service->insertEntry($newEntry->saveXML(), $editLink->href, 'Zend_Gdata_Spreadsheets_ListEntry');
Don't forget to encourage this great answer, it costed me few days to figure out. I think ZF is great however sometimes you dont want to rely on their coode too much when it comes to resources optimization.
I use Zend framework to build the forms, I want to make the edit action, since the user click on edit, the form appears with users data, how can I set the data to the form which is built dynamically??
$form->populate($data);
where $data is an array of key value pairs containing your data.
$form = new Zend_Form;
if ($this->_request->isPost()) {
//to just populate
$form->populate($this->_getAllParams());
//or auto populate during validation
if ($form->isValid($this->_getAllParams()) {
//do stuff if valid
}
}
I know that ZF maunal is pretty messy and not everything is clear, but I think forms are explained pretty nice (with examples). You should research more by yourself.
http://framework.zend.com/manual/en/zend.form.html
$Menu = new Admin_Model_DbTable_Menu();
$row = $Menu->fetchRow($Menu->select()->where('id = ?', $id));
$Addmenu = new Admin_Form_Addmenu();
$Addmenu->populate($row->toArray());
Can anyone tell me how to format the query below correctly in my controller.
Currently it gives me nothing in my FilteringSelect. However if I change it to >= I get back all the kennelIDs which is incorrect also but at least I'm getting something.
I've tested that the session variable is set and can confirm that there are kennels with the matching capacity.
// Create autocomplete selection for the service of this booking
public function servkennelAction()
{
$sessionKennelBooking = new Zend_Session_Namespace('sessionKennelBooking');
// disable layout and view rendering
$this->_helper->layout->disableLayout();
$this->getHelper('viewRenderer')->setNoRender(true);
// get list of grooming services for dogs from the table
$qry= Doctrine_Query::create()
->from('PetManager_Model_Kennels k');
//This should be set by default and narrows down the search criteria
if(isset($sessionKennelBooking->numPets)){
$b=(int)$sessionKennelBooking->numPets;
$qry->addWhere('k.capacity = ?','$b');
}
$result=$qry->fetchArray();
//generate and return JSON string using the primary key of the table
$data = new Zend_Dojo_Data('kennelID',$result);
echo $data->toJson();
}
Many thanks in Advance.
Graham
I think that addWhere condition is wrong. It has to be:
$qry->addWhere('k.capacity = ?', $b);
i.e. $b without quotes.