I am new in Drupal 8. I have created a node with category (taxonomy). Now I don't understand how to get tid by using nid. I am using $node->body->value to get the body field value and use {{ body }}. But to get category id if I use $node->field_category->value, it will display Null in debugging mode.
function THEME_preprocess_node(&$variables) {
$node = \Drupal::routeMatch()->getParameter('node');
$variables['body'] = $node->body->value; // Working fine
$cat_id = $node->field_category->value; // Its showing null
kint($cat_id);
}
So can anyone please tell me how can I get the category id (tid) of a node?
A reference field it's value can be obtained by using the target_id instead of value. With the target_id you can load the full term if you need to.
$tid = $node->field_category->target_id;
Related
{
acknowledged: true,
insertedId: new ObjectId("612d9d08db9c20f031033478")
}
This was the JSON format I got while I added a file and some other things to MongoDB and I want to get this id separately to save the file to another folder.
Can anyone please explain this?
I believe this question was answered by Vikas in this thread How to get value from specific key in NodeJS JSON [duplicate]
Edited The Answer. Now Its working for above object in question
You can use following function to access the keys of JSON. I have
returned 'mm' key specifically.
function jsonParser(stringValue) {
var string = JSON.stringify(stringValue);
var objectValue = JSON.parse(string);
return objectValue['mm'];
}
if this is a JSON String, at first of all you have to parse it to object liertal, then you can access the specified property you mentioned, so you can do like the following:
function parseJsonString(jsonString) {
// first parse it to object
var obj = JSON.parse(jsonString);
// now access your object property/key
var id = obj.insertedId;
}
If your doing it on mongodb shell or Robo3T then, the line of code would be:
db.collection_name.find({},{insertedId:1})
This is related to projection. 1 represents you want to display it as your output.
In your case as you want only the value of your object id to get displayed, you have to use .valueOf() ; that is ObjectId().valueOf().
-> insertedId: new ObjectId("612d9d08db9c20f031033478")
-> ObjectId("612d9d08db9c20f031033478").valueOf()
->
-> 612d9d08db9c20f031033478
Your can refer this : https://docs.mongodb.com/manual/reference/method/ObjectId.valueOf/ site for your reference.
So you can use this .valueOf() in your code and get the id saved in the document
I am building a dynamic query using eloquent based on user inputs.
$query = \App\Model::query();
if($this == request('that')){
$query->where(...); // building dynamic query based on user inputs
}
and finally user can type number of records shown per page in an html input field named count or checking a checkbox input type named all and following code completes dynamic query in back-end:
if (request('all')) {
$result = $query->get();
}else {
$result = $query->paginate(request('count'));
}
Also in front-end I have following code to show pagination links:
{{$result->links()}}
The problem is when user chooses to show all records we face following error:
Method links does not exist.
links method is not callable when we retrieve objects via get() method. What is the best practice in order not to face this error?
It's because ->get() method return collection instead of paginator model Illuminate\Pagination\LengthAwarePaginator. So I can recomment you send some addition variable from your controller which indicate if you need execute $result->links().
Controller:
return view('yourView', [showPagination => is_null(request('all'))]);
View:
#if($showPagination)
{{$result->links()}}
#endif
I want to override the item listing template file core/themes/classy/templates/dataset/item-list.html.twig for listing the fields field_slider_images as well as field_blog_tags respectively of their's multiple values of the field.
I have selected "Unordered List" in the view.
Please do check the attached image.
I have created following files :
item-list--field-blog-tags.html.twig
item-list--field-slider-images.html.twig
But, this is not rendered for the listing of the fields.
When I have created item-list.html.twig then only it will access.
However, both fields have different data to style and I am not able to get the current field name which is loading it's data in item-list.html.twig.
Had a brief look at this and it doesn't seem that 'item-list' to have suggestions, which is quite unfortunate.
In this situation there are two options:
Create your own suggestion which would accomplish exactly what you need.
You'll have to do something like this:
/
/*add new variable to theme with suggestion name*/
function hook_theme_registry_alter(&$theme_registry) {
$theme_registry['item_list']['variables']['suggestion'] = '';
}
//send a value to newly added variable to use it build the suggestion
function hook_ENTITY_TYPE_view(array &$build, $entity, $display, $view_mode) {
//add condition here if field exists or whatever, do the same for other field
$build['field_slider_images']['#suggestion'] = 'field_slider_images';
}
//use newly added variable to build suggestion
function hook_theme_suggestions_THEME_HOOK(array $variables) {//THEME_HOOK=item_list
$suggestions = array();
if(isset($variables['suggestion'])){
$suggestions[] = 'item_list__' . $variables['suggestion'];
}
return $suggestions;
}
Now you should be able to use item-list--field-slider-images.html.twig
Second option is to do what others in core did: use a new theme
function hook_ENTITY_TYPE_view(array &$build, $entity, $display, $view_mode) {
//add condition here if field exists or whatever, do the same for other field
$build['field_slider_images']['#theme'] = array(
'item_list',
'item_list__field_slider_images',
);
}
I have a custom form where, in a subtab, I have a dropdown that I need to find out the selected value on the client side after the user selects to perform some validation. I created the script and tied it to the on change event of the dropdown. I cannot seem to find the code to get the selected value on the client side. I have found code to read the value on the server side from a submit event. I need this on the client side on change. I am going to use the ID to look up a record and check a value on that record and if applicable popup a warning to the user. Either SS1 or SS2 is good, whatever would be better I have both available. Any help with this would be great. thanks
In a client script, you can use nlapiGetFieldValue() to retrieve the results.
function fieldchanged(type, name, linenum) {
if(name == 'dropdownid') {
var value = nlapiGetFieldValue('dropdownid');
alert(value);
}
}
OK the nlapiGetFieldValue, did not do the trick, what did was the following
function ValidateField( type, field, linenum ) {
if ( field === 'recordid' ) {
var vendorid = nlapiGetCurrentLineItemValue(type,field,linenum);
var vendorRecord = nlapiLoadRecord('vendor',vendorid);
}
return true;
}
thanks for your help
We Have Contact Entities in contact Entitie one lookup filed company Name in that lookup having two values 1.Account and 2.Contact . When we are selecting contact show the address filed when we select account hide the address filed we needs to write the plugin to Execute that works. Kindly any one help me on the same.
Thanks!!
Rajesh Singh
First, if you need to make change on a form, you can't use plug-ins. Plug-ins are made for bussinees logics, like Update another record when the first one is created, make complex logic, etc...
What you need it is a javascript that executes on the OnLoad of the form and OnChange event in that OptionSet.
The lines you are looking for are:
function ShowField()
{
// The field is present on the form so we can access to its methods
var optionSet = Xrm.Page.getAttribute("custom_attribute");
if (optionSet == undefined)
{
return;
}
// The control is present on the form so we can access to its methods
var controlAddress = Xrm.Page.getControl("custom_address");
if (controlAddress == undefined)
{
return;
}
var valueOptionSet = optionSet.getValue(); // This is the value you set creating the OptionSet
switch (valueOptionSet)
{
case 0: // Your account value, show
controlAddress.setVisible(true);
case 1: // Your contact value, hide
controlAddress.setVisible(false);
default:
return;
}
}
You need to register a web resource and register the event, if you need more information about the code or why this stuff is here and why this not just tell me.