Yii validation tabular form can't upload files - php

Question

I'm having some problems when I try upload multiples files in multiples instances of my model (tabular way).
I have a model called Files and a view that generate a form for multiple instances of that model. When I save the form without "multpart/form-data", everything works, but if I put this parameter on form and submit it, the validation shows the message that "File cannot be blank."
See my controller code bellow:
public function actionRegistration() {
$company = new Company;
$contacts = $this->getModelItens('Contact', 3);
$banks = $this->getModelItens('Bank' , 2);
$files = $this->getModelItens('File' , 2);
$company->scenario = 'create';
if($_POST['Company']) {
$company->attributes = $_POST['Company'];
$valid = $company->validate();
$valid = $this->validateModels($_POST['Contact'], $contacts) && $valid;
$valid = $this->validateModels($_POST['Bank'], $banks) && $valid;
$valid = $this->validateModels($_POST['File'], $files) && $valid;
if($valid) {
if($company->save()) {
$this->saveModels($contacts, $company->id);
$this->saveModels($banks, $company->id);
$this->saveModels($files, $company->id);
$this->redirect('/obrigado');
}
}
}
$this->render('registration', array('company' => $company, 'contacts' => $contacts, 'banks' => $banks, 'files' => $files));
}
private function getModelItens($model_name, $times, $scenario = 'create') {
$models = array();
for($i = 0; $i < $times; $i++) {
$models[$i] = new $model_name;
$models[$i]->scenario = $scenario;
}
return $models;
}
private function validateModels($forms, $models) {
$valid = true;
foreach($forms as $k => $form) {
$models[$k]->attributes = $form;
$models[$k]->position = $k;
$valid = $models[$k]->validate() && $valid;
}
return $valid;
}
private function saveModels($models, $company_id) {
foreach($models as $k => $model) {
$model->company_id = $company_id;
if($model instanceOf File) {
if($model->save()) $this->upload_file($model, "file");
} else $model->save();
}
}
private function upload_file($model, $field, $k) {
$path = Yii::app()->basePath . "/../assets/files/companies/{$model->company_id}/";
$file = CUploadedFile::getInstance($model, $field);
if($file instanceof CUploadedFile) $model->$field = $file;
if($model->$field instanceof CUploadedFile) {
if(!file_exists($path)) exec("mkdir -p {$path}");
$model->$field->saveAs($path . $model->$field);
}
}
I've tried everything but I can't fix it, any suggestion?
Thanks.

Answer 1

I am not sure if this assignment $models[$k]->attributes = $form; will do the $_FILES as well as the $_POST for your model. Looking at this example, I think you need to do that CUploadedFile stuff before you validate() or save() (which also validates), otherwise your file field will be blank.
I think you need this order of events:
$model->$field = CUploadedFile::getInstance($model, $field); // set file field
$model->save() OR $model->validate() // THEN validate
$model->$field->saveAs($path . $model->$field); // then save the file
Instead, you have this order of events currently:
$model->save() AND $model->validate()
$model->$field = CUploadedFile::getInstance($model, $field);
$model->$field->saveAs($path . $model->$field);
I could be way off though, I'm just looking at your code and not actually testing this. Also, I have no idea why it only throws an error when you set the multpart/form-data attribute on the form; it should not work at all without that! Maybe it was skipping validation on the file fields without that? Or attributes() was assigning something from $_POST besides the file? /shrug
UPDATE:
Another thing that might be happening, is that with "tabular" input you need to reference the input field with the '$key' as well (i.e. Model[0][imageFile]). So here, where you are calling:
$this->upload_file($model, "file");`
You probably need to call something like this, so that getInstanceByName() is getting the right field name:
$this->upload_file($model, "[".$k."]file");`
I think you will still need to re-arrange your code as I mention above too.
Good luck!
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