Silverstripe populate form based on url - forms

Question

I have TeamsPage class and Team class. I am trying to figure out how to pre-populate the form with the data from the database based on the ID that was passed in the URL. Below is the code of my attempt, I tried to pass in the ID via template but that did not work. How else can I accomplish this? I would prefer if there was a way to pass the team as an object that I already have in the edit function so that I don't have to hit the database twice. Is there a way to do this?
TeamsPage:
<?php
class TeamsPage extends Page {
private static $has_many = array (
'Teams' => 'Team',
);
public function getCMSFields() {
$fields = parent::getCMSFields();
$fields->addFieldToTab('Root.Teams', GridField::create(
'Teams',
'Teams on this page',
$this->Teams(),
GridFieldConfig_RecordEditor::create()
));
return $fields;
}
}
class TeamsPage_Controller extends Page_Controller {
private static $allowed_actions = array (
'show', 'edit', 'EditTeamForm'
);
public function EditTeamForm($teamId){
$fields = new FieldList(
new TextField('TeamName'),
new TextareaField('TeamDescription')
);
$actions = new FieldList(
new FormAction('EditTeam', 'Save Changes')
);
$requiredFields = new RequiredFields(array('TeamName','TeamDescription'));
$form = new Form($this, 'EditTeamForm', $fields, $actions, $requiredFields);
$form->setFormMethod('POST', true);
$data = Session::get("FormData.{$form->getName()}.data");
$team = Team::get()->byID($teamId);
return $data ? $form->loadDataFrom($data) : $form->loadDataFrom($team);
}
public function show(SS_HTTPRequest $request) {
$team = Team::get()->byID($request->param('ID'));
if(!$team) {
return $this->httpError(404,'That team could not be found');
}
return array (
'Team' => $team
);
}
public function edit(SS_HTTPRequest $request){
$team = Team::get()->byID($request->param('ID'));
if(!$team) {
return $this->httpError(404,'That team could not be found');
}
return array (
'Team' => $team
);
}
}
Team:
<?php
class Team extends DataObject {
private static $db = array(
'TeamCaptain' => 'Int',
'TeamName' => 'Varchar',
'TeamDescription' => 'Text'
);
private static $has_one = array (
'Photo' => 'Image',
'TeamsPage' => 'TeamsPage'
);
private static $summary_fields = array (
'GridThumbnail' => '',
'TeamCaptain' => 'Team Captain',
'TeamName' => 'TeamName',
'TeamDescription' => 'Team Description',
);
public function getGridThumbnail() {
if($this->Photo()->exists()) {
return $this->Photo()->SetWidth(100);
}
return '(no image)';
}
public function getCMSFields() {
$fields = FieldList::create(
TextField::create('TeamCaptain'),
TextField::create('TeamName'),
TextareaField::create('TeamDescription'),
$uploader = UploadField::create('Photo')
);
$uploader->setFolderName('teams-photos');
$uploader->getValidator()->setAllowedExtensions(array(
'png','gif','jpeg','jpg'
));
return $fields;
}
public function Link() {
return $this->TeamsPage()->Link('show/'.$this->ID);
}
}
TeamsPage_edit.ss
<% if GetMember() %>
Welcome $getMember.FirstName<br />
$EditTeamForm($ID)
Back to Home
<% else %>
$GoToLogin()
<% end_if %>

Answer 1

It looks to me like you're passing the wrong ID to EditTeamForm from the template. Unless there is a <% with %> statement that I'm not seeing I think you want to call:
$EditTeamForm($Team.ID)
Everything else looks fine to me.