PHP Weird Trying to get property of non-object error - php-7

When defining an Array of Objects, I obtain a
Trying to get property of non-object
on some nested attributes of my initial object.
Here is the code used:
$res = [];
foreach($data as $el) {
//dd($el->rel->anotherProp); // string(2) "ok"
$res[] = [
'foo' => $el->foo,
'bar' => $el->bar,
'anotherProp' => $el->rel->anotherProp, // Trying to get property of non-object BUT $el->rel['anotherProp'] works
];
}
Ran with PHP 7.0.16.
Is a matter of some sort of scope in PHP?

Related

PDO's fetch method passes wrong parameter to constructor class (in Yii)

Model class MyModel has following behavior
public function behaviors() {
return [
'CTimestampBehavior' => [
'class' => 'zii.behaviors.CTimestampBehavior',
'createAttribute' => null,
'updateAttribute' => 'update_time',
'setUpdateOnCreate' => true
]
];
}
In code, in controller I write something like
$model = new MyModel();
$dataReader = Yii::app()->db->createCommand()
->selectDistinct('some fields')
->from('MyModel')
->leftJoin('some table')
->where('some criteria')
->query();
while ($item = $dataReader->readObject('MyMode', $model->getAttributes())) {
**//!!! HERE item array is with model attributes, which are empty**
$items[] = $item;
}
disaster, it's not working, items is array, each of element holding empty list of attributes, like no data fetched from db
If I write
$dataReader = Yii::app()->db->createCommand()
->selectDistinct('some fields')
->from('MyModel')
->leftJoin('some table')
->where('some criteria')
->query();
while ($item = $dataReader->readObject('MyModel', MyModel::model()->getAttributes())) {
//!!! HERE item array is with model attributes, which hold correct data, taken from db
$items[] = $item;
}
it's working
If I get rid off CTimestamp behavior, both cases work.
If I debug first case, I realize that, after pdo fetchobject is done, it calls constructor with scenario="current_timestamp()". Question is why? And where I missstepped?
If you read readObject() documentation you will find that second argument is not list of fields, but list of constructor arguments. CActiveRecord has only one constructor argument - $scenario. $dataReader->readObject('MyMode', $model->getAttributes()) essentially assigns random value as scenario, since it will get first value from $model->getAttributes(). In your case you probably need:
$item = $dataReader->readObject('MyModel', []);

Phalcon: save reference to new record in one transaction

Im trying to save a reference to a new object in a single transaction as shown here in the documentation under 'implicit transactions':
I am creating two new objects of the same class, one is then referencing the other. From the documentation, the save should be performed on TreeNodeA when TreeNodeB is saved and the ID will be passed to TreeNodeB->parent_tree_node_id
This doesnt seem to be working, and it still being passed as an object as Im getting the error on the save function:
Object of class TreeNodes could not be converted to string
I've tried writing a saveTreeParentNodeId function in the model and also setting it using the alias, but neither seem to work.
$treeNode = new TreeNodes();
$treeNode->setConnectionService(Registry::setConnection(MyModel::MAIN_DB));
$parentNode = $treeNode->findFirst();
$treeNodeA = new TreeNodes();
$treeNodeA->tree_id = $parentNode->tree_id;
$treeNodeA->tree_parent_node_id = $parentNode;
$treeNodeA->tree_level_id = 2;
$treeNodeA->node_desc = "Test Node A";
$treeNodeB = new TreeNodes();
$treeNodeB->tree_id = $parentNode->tree_id;
$treeNodeB->tree_parent_node_id = $treeNodeA;
$treeNodeB->tree_level_id = 3;
$treeNodeB->tree_desc = "Test Node B";
$treeNodeB->save();
The model:
class TreeNodes extends MyModel
{
public $node_id;
public $tree_id;
public $tree_parent_node_id;
public $tree_level_id;
public $node_desc;
public function getSource()
{
return "TreeNodes";
}
public function setTreeParentNodeId(TreeNodes $parentNode){
$this->tree_parent_node_id = $parentNode->node_id;
}
public function initialize()
{
parent::initialize();
$this->belongsTo(
'tree_id',
'Organisations',
'TreeID',
array(
'alias' => 'organisation',
'reusable' => true
)
);
$this->hasOne(
'tree_id',
'TreeType',
'tree_id',
array(
'alias' => 'type',
'reusable' => true
)
);
$this->hasOne(
'tree_parent_node_id',
'TreeNodes',
'node_id',
array(
'alias' => 'parentNode'
)
);
}
}
Update
By updating the model to use belongsTo, Phalcon recognises the parentNode.
$this->belongsTo(
'tree_parent_node_id',
'TreeNodes',
'node_id',
array(
'alias' => 'parentNode'
)
);
This enables $treeNodeA to save implicitly when $treeNodeB is saved.
$treeNodeA->parentNode = $parentNode;
Unfortunately, $treeNodeB with a reference to $treeNodeA as the parentNode is NOT saved. No error message is returned either, just 'true'.
In the documentation example you linked, they assign the $robotPart object to $robot->robotPart. robotPart refers to the linked RobotPart object and not to the ID ( to which you are trying to assign your object )
$treeNodeB = new TreeNodes();
$treeNodeB->tree_id = $parentNode->tree_id;
// $treeNodeB->tree_parent_node_id = $treeNodeA;
$treeNodeB->parentNode = $treeNodeA;
$treeNodeB->save();
You should use parentNode here because this is the name you gave to your relationship via hasOne.
I haven't tested this myself, but by following the documentation's logic, this should push you in the right direction.
Alter you model relationships so you have both sides of the relation
// let Phalcon know that "tree_parent_node_id" is a reference to "node_id"
$this->hasOne(
'tree_parent_node_id', // your column
'TreeNodes', // referenced table
'node_id', // referenced table column
array(
'alias' => 'parentNode',
'foreignKey' => true
)
);
// let Phalcon know that "node_id" is being referenced as a FK in "TreeNodes"
$this->belongsTo(
'node_id', // PK
'TreeNodes', // referenced table
'tree_parent_node_id', // referenced table column
array('foreignKey' => ['message' => 'FK constraint error between node_id and tree_parent_node_id'])
);

How can I get all the modified fields before saving the editing in cake php?

Using the
$entity->errors(); //is returning all errors.
to find changes before upgrading
There is something like
$entity = $this->Controller->patchEntity($entity , $this->request->data);
echo $entity->diff (); // how?
I guess you are looking for:
$entity->dirty()
If you want an array containing alla the dirty properties you can do
$entity->name = 'Foo';
$entity->description = 'Bar';
debug($entity->extract($entity->visibleProperties(), true));
you'll get
[
'name' => 'Foo',
'abbreviation' => 'Bar'
]
see the manual

How do you get the value of a "embed"?

I have a link field called lien. When I get it from the API through the Item it belongs to, I receive the following array:
[lien] => Array(
[0] => Array(
[embed] => 49935230
[file] => 129256002
)
)
I have no problem with the file.
How do you get the URL value?
The Embeds documentation: https://developers.podio.com/doc/embeds
A similar issue exists when getting the value of a category field through the Item object. It's an array of the selected option_id, it doesn't hold the option_text. The workaround is to get the corresponding App object and search for the option_text using the provided option_id.
The field's values are returned as a collection of embed objects. You can see documentation at: http://podio.github.io/podio-php/fields/#linkembed-field
E.g.:
$item = PodioItem::get_basic(123);
$field_id = 'embed';
$collection = $item->fields[$field_id]->values;
foreach ($collection as $embed) {
print "Embed id: ".$embed->embed_id;
print "Embed URL: ".$embed->original_url;
}

Yii : Multiple activeCheckboxlist with same model

has just started out Yii web app and encountered this problem, any suggestions are welcome:)
What i am trying to achieve:
-To display a form with tabs, each tab content contains a list of checkboxes from the same model.
-so user can select some items from tab 1, some from tab 2, etc and then click submit button to process.
Problem:
But i couldn't think of anyway such that the last tab activecheckboxlist will not clobbered the previous one up.
I am trying to to something similar to this : [www.yiiframework.com/forum/index.php/topic/20388-2-checkboxlist-and-1-model]
but instead of fixing it at 2, mine is dynamic.
What i have done so far:
<?php
$tabArray = array();
foreach ((Product::model()->listParentChild(0)) as $productparent) {
array_push($tabArray, array(
'label' => $productparent['name'],
'content' => CHtml::activeCheckBoxList(
$model, 'products', CHtml::listData(Product::model()->listParentChild($productparent['id']), 'id', 'name'), array(
'labelOptions' => array('style' => 'display:inline'),
'template' => '<div class="check-option">{input} {label}</div>',
'separator' => '',
)
), 'active' => ($productparent['id'] == 1 ? true : false),
));
}
?>
<?php
$this->widget('bootstrap.widgets.TbTabs', array(
'type' => 'tabs', // 'tabs' or 'pills'
'placement' => 'left',
'tabs' => $tabArray,
));
?>
and in my product model:
public function listParentChild($parentid) {
$sql = "SELECT * FROM piki_product WHERE parentid=:parentid";
$productlist = Yii::app()->db->createCommand($sql);
$productlist->bindValue(":parentid", $parentid, PDO::PARAM_INT);
return $productlist->queryAll();
}
any suggestions will be appreciated.. :/
I could be wrong, but I don't think cliffbarnes is on the right track with his comments about dynamic nesting. As far as I can tell, you're only dealing with one level of child products; it's just that there could be multiple sets of these child products.
In that case, the link you sited actually offers the correct solution:
<?php echo CHtml::checkBoxList('array1', CHtml::listData(Atributos::model()-> findAllByAttributes(array('tipo'=>'talla')), 'id_atributo','valor'))?>
<?php echo CHtml::checkBoxList('array2', CHtml::listData(Atributos::model()-> findAllByAttributes(array('tipo'=>'talla')), 'id_atributo','valor'))?>
Each set of checkboxes is given a different name (array1, and array2), so that each field's selected values doesn't override the other. In your case, the solution is the same; you just need to make the field names dynamic. I.E.
foreach ((Product::model()->listParentChild(0)) as $productparent) {
$fieldname = 'product' . $productparent['id'];
echo CHtml::checkBoxList($fieldname, ... (etc)
Within your controller you would check to see whether there are results for each dynamic field name.
foreach ((Product::model()->listParentChild(0)) as $productparent) {
if (isset($_POST['product' . $productparent['id']]) {
// Add values to $model->product
}
}
An even better solution would be to output each checkbox individually, so you can create one array of results, indexed by child ID.
foreach ((Product::model()->listParentChild(0)) as $productparent) {
foreach (Product::model()->listParentChild($productparent['id']) as $child) {
CHtml::checkBox("product[{$child['id']}]", ... (etc)
Then in your controller, all you'd have to do is this:
if (isset($_POST['product']) && count($_POST['product']) > 0) {
$model->product = array_keys($_POST['product']);
}
This solution does not work with activeCheckBoxList(). It would work if you wanted to override the __get() and __set() magic methods to make these dynamic property names available to your model, but that's probably over kill.
Edit (as per request)
If you need to have default selections for your checkboxes, you can just pass them as the second argument of CHtml::checkBoxList(). http://www.yiiframework.com/doc/api/1.1/CHtml#checkBoxList-detail
But if you still want to use __get() and __set(), here's an example:
class YourModel extends CActiveRecord {
// I usually create a placeholder to contain the values of my virtual attribute
protected $_childValues = array();
public function __get($name) {
// The following regular expression finds attributes
// with the name product_{parent ID}
if (preg_match("/^product_\d+$/", $name)) {
// I put the underscore in the name so I could get
// parent ID easier.
list($junk, $id) = explode("_", $name);
if (!isset($this->_childValues[$id])) {
$this->_childValues[$id] = array();
}
return $this->_childValues[$id];
}
else {
// Make sure to still call the parent's __get() method
return parent::__get($name);
}
}
public function __set($name, $value) {
// Same regex as above
if (preg_match("/^product_\d+$/", $name)) {
list($junk, $id) = explode("_", $name);
$this->_childValues[$id] = $value;
}
else {
// Make sure to still call the parent's __set() method
parent::__set($name, $value);
}
}
}
$model = new YourModel;
// Any property in the format of product_{parent ID} is available
// through your model.
echo $model->product_1;
$model->product_300 = array();
You might also consider checking to see if the parent ID in a property name corresponds with a parent ID in the database, instead of just allowing any property in that format to pass through.