passing two tableadaptercolletions to view - zend-framework

Question

I'm still trying to get as "hierarchical" view the recordssets of a second tableadapter collection.
In my controlleraction I passed a second argument to the view:
return new ViewModel([
'projects' => $this->projectTable->fetchAll(),
'dcls' => $this->table->fetchAll()
]);
In my view I thought I could grab the second collection as I did with the first:
foreach ($projects as $project) :
?>
<tr>
<td><?= $project['Projectname']?></td>
<td><?= $project['ProjectShortcut']?></td>
<td><?= $project['ProjectCiNumber']?></td>
<td><?= $project['Unitname']?></td>
<td><?= $project['UnitShortcut']?></td>
<td><?= $project['UnitCiNumber']?></td>
<td>
Edit
Delete
</td>
<?php foreach ($dcls->getImportunit($project['UnitID']) as $dcl) : ?>
<td><?= $dcl['Importdate']?></td>
<?php endforeach; ?>
<?php endforeach; ?>
But that doesn't work, I have some understanding issues.
if I try $dcls->getImportunit($project['UnitID']) as $dcl
then I get an error
Call to undefined method Zend\Db\ResultSet\ResultSet::getImportunit()
The method is placed in my model and it is public.
If I call just to try: <?php foreach ($dcls as $dcl) :
<td><?= $dcl['Importdate']?></td>
<?php endforeach; ?>
I get an error
Cannot use object of type Import\Model\Import as array
Interesting I used the same syntax like for projects?
If I use as an object attribut :
<?php foreach ($dcls as $dcl) :
<td><?= $dcl->Importdate?></td>
<?php endforeach; ?>
I get an error
This result is a forward only result set, calling rewind() after moving forward is not supported
This one makes sense for, I just tried different possibilies to get a clue if my dcl Records are usable in my view.
So I have two questions. why can't I grad the columns as an error like I have done with projects.
And why can't I use my method? It seems like the collection dcls is not properly passed.
So besides the little understanding issues my target shall be to scroll through the second collection (dcl) while using a parameter of the first collection (project)
EDIT1: following the suggestions from jobaer
Here first my new code:
Controller/indexAction
$dcls = $this->table->fetchAll();
// make an array for dcl
$secondCollection = array($dcls);
foreach ($dcls as $dcl) {
// if this is a resultset pass into view as you need
$importUnits = $dcl->getImportunit($project['UnitID']);
$secondCollection['importdate'] = $dcl->importdate;
$secondCollection['DCL_Path'] = $dcl->DCL_Path;
}
// pass $secondCollection via model
return new ViewModel([
'projects' => $this->projectTable->fetchAll(),
'dcls' => $secondCollection,
]);
Question: How could this work as how I understand the view gets every recordset of projects and if I here try to get the secondCollection related to UnitID, how can it work in the view? For my understanding the passing to the view is executed only once if I call the route, isn't it? or am I wrong in this case?
This one $importUnits = $dcl->getImportunit($project['UnitID']); in this snipped might have no effect?

Answer 1

Call to undefined method Zend\Db\ResultSet\ResultSet::getImportunit()
This is you are getting because you are not calling that method in a way that should not be.
Cannot use object of type Import\Model\Import as array
You cant call an object as array unless it is implicitly defined to be called as an array inside that class you are calling on.
This result is a forward only result set, calling rewind() after moving forward is not supported
You are getting this because, generally you cant loop over over again for the result set you are returning if you do not rewind the internal pointer to the beginning, this result set uses SPL Iterator.
So to meet this issue you can use buffer() method with the result set before returning it.
public function fetchAll()
{
$resultSet = $this->tableGateway->select();
$resultSet->buffer(); // This is the point here
return $resultSet ;
}
Buffering is a feature of Zend\Db\ResultSet\ResultSet, which you can use to wrap a driver result.
Edit:
Whatever is related to model, you must do that in the model. As you are coming across loop problem with the result sets, you do the trick with the help of the model. What this means is to create an array from the result set in your controller method and then pass it to the view.
For example, you are doing so as the following in the view to fulfill your needs.
foreach ($projects as $project) :
// here you are looping for project
foreach ($dcls as $dcl) :
// Here you want to loop for dcl
endforeach;
endforeach;
But for the above described reason you cant use loop inside another loop.
'projects' => $this->projectTable->fetchAll(),
'dcls' => $this->table->fetchAll()
As you know $projects and $dcls return resultsets. That's why I told you to make arrays from those resultsets in the controller methods.
You already know what to display from $projects and $dcls. So make arrays from resultsets as below
$secondCollection = array();
foreach ($dcls as $dcl) {
$secondCollection['importdate'] = $dcl->importdate;
$secondCollection['DCL_Path'] = $dcl->DCL_Path;
}
Do the same technic for others if you need.
Now if you need any resultset by specific ID or NAME then you should process the thing in your controller method using model's method help. For example
$projects = $this->projectTable->getProjectByUnitId($unitId);
Now you know $projects is also a resultset, so you can make it an array as above.
Then pass all of the arrays made from different resultsets in the view...
return new ViewModel([
'array_name1' => $array_name1,
'array_name_2' => $array_name_2,
]);
Hope this would help you!