Is there any way to remove some particular associated data in Cake 3?
For example in a blog example I want to remove the tag "important" from post 3?
You can use the the methods in the association class to remove the link between one entity and the other:
$post = ... // Fetch the post that contains the tag
$tag = $this->Posts->Tags->get($this->request->data('tag_to_delete'));
$this->Posts->Tags->unlink($post, [$tag]);
Related
I do not really understand the difference between these three ways to declare an ID in html:
[id] = "'example'"
id = "example"
#example
The first two seem to be identical, is this correct?
These I can style in my example.component.css file.
The third one is special. I understand I can use it everywhere in the current html view, but I cannot apply CSS styles with example.component.css, is this correct?
Which one shall I use in angular? A combination of 1/2 and 3?
I also noticed if I use the same ID in different components, I will have duplicate ID's, which is really bad, so eventhough I use angular and different components I must be very careful how I name ID's, is this correct?
Version 2 is the default html syntax for an id
Version 1 is the angular way, if the id is a variable, e.g. [id]="myId"
Version 3 is the angular way to export/reference a html element to angular. This is not an id.
The id is a HTML Element (not angular), so you have to look that the id in html after building is unique.
Yes the first two have an identical end result. The second one is a string while the first one is a javascript expression and is evaluated by angular. This means you can use things like component properties such as [id]="'example-' . foo" which outputs id="example-2" if you had a property foo = 2; in your component.
The third one actually doesn't have anything to do with the ID attribute in HTML, but I understand why it may seem like it. It's actually a template reference variable and it allows you to access this element from anywhere else in your template, or even from your component code.
You're right, the html specification requires an ID to be unique, browsers are forgiving so they may permit you to use duplicate IDs but it should be avoided at all costs.
You can use id="unique_id" if you don't want to change it dynamically. If you want to change your HTML element id dynamically through Component.ts then you should use [id]="your_variable" & #example serves for different purpose described below.
id with [] brackets is angular directive to set HTML id attribute value through a variable or expression
id is a HTML attribute which sets a unique id on an element
#example if you are writing like this in Component.html you are basically creating a template reference variable which is a reference to a DOM element within a template. You can then access this using Angular #ViewChild decorator. It can also refer to a directive (which contains a component), an element, TemplateRef, or a web component.
Angular Template Reference Variable
[id] = "'example'" => This one set assign example as id and it is same as id = "example".
Suppose if we want to assign a variable value then use [id] = "example".For this in ts file you have to declare the example variable
Public example ="your-class-name";
So id value will be your-class-name
#example => These are templare refference variable.
A template reference variable is often a reference to a DOM element within a template.
For example,
<input #phone placeholder="phone number" />
<!-- lots of other elements -->
<!-- phone refers to the input element; pass its `value` to an event handler -->
<button (click)="callPhone(phone.value)">Call</button>
Good morning,
I have a DataObject that has an 'HTMLText' field in it as a description.
However, when it's displayed in the backend in the Summary View, I'm seeing all the HTML code associated with it. How can I strip the HTML Code and display the text alone or a summary of the text without the HTML tags?
Thanks.
Summary fields can be used to show a quick overview of the data for a specific DataObject record.
To include field manipulations in your summaries, you can use a dot-notation.
private static $summary_fields = array(
'Title' => 'Title',
'Description.BigSummary' => 'Description'
);
Make sure to call ?flush=1 to have this property loaded or updated.
You can set the casting in the GF config per Field:
$GridField->getConfig()->getComponentByType("GridFieldDataColumns")->setFieldCasting(array("FieldWithHTML"=>"HTMLText->BigSummary"));
This may be a little confusing to describe.
Basically, I am parsing multiple external JSON feeds that display in different views depending on the 'active tab' displayed. They both share the same partial template, so they both look exactly the same, just different content.
The problem that I am facing now is, that in some feeds, some keys are placed in an array and others are not.
For example, the feeds parses this kind of data:
JSON Feed 1 - One 'attributes' inside of 'link'
"link":{
"attributes":{
"href":"www.link1.com"
}
}
JSON Feed 2 - Two 'attributes' inside of 'link'
"link":[
{
"attributes":{
"href":"www.link1.com"
}
},
{
"attributes":{
"href":"www.link2.com"
}
}
]
The only way I am able to get the value "www.link1.com" is via:
For Feed 1:
link1
And for Feed 2:
link1
I am trying to figure out what would be the best way to do:
1) If link[0] exists - display it, else if [link] exists, display that instead.
2) Or if targeting the activeTab would be safer? For instance, if activeTab = view2 or view4, use [link][0], else if activeTab = view1 or view3 use [link], else if I do not want it to be displayed, do not display anything.
Also a relatable question, if I am on view2 can I only display [link][0] on that view?
Any feedback would be appreciated. Thanks!
In your model controller, you can reconstruct the JSON objects to make them similar. The value of link in both feeds should be an array.
Then in your template you can simply use ngRepeat to get the items from inside the array.
Okay - so I found a solution to one of the questions above: "How to only display [link][0] in a specific view"
Pro: It's a simple code that depends on the activeTab / view that is being displayed.
Con(?): Since I am really a newbie to AngularJS - not sure if this is the best solution.
Basically:
Depending on the ng-view that is currently displayed, than a specific JSON object will be displayed, such as:
<a ng-show="activeTab == 'view1' || activeTab == 'view3'" ng-href="{{item['link'][0]['attributes']['href']}}">
<h6>Link1 from Feed2</h6>
</a>
Although the primary question is still unresolved: How to swap/switch JSON objects (key,values) if one exists, and not the other. I am still definitely trying to find a solution, although any help is still appreciated.
Please let me know what you think, or how I can improve the solution to the problem!
Thanks!
Roc.
I'm using django-taggit. I am tagging action items and info items. I want to list all tags for which there is an info item. I originally wrote:
Tag.objects.filter(info_item__name__isnull=False).annotate(info_item_count=Count('info_item'))
But this is returning some action items. How might I rewrite the query so that the Tags are filtered such that there is an info item attached?
Assuming your info_item model is InfoItem, then try
from django.contrib.contenttypes.models import ContentType
Tag.objects.filter(
taggit_taggeditem_items__content_type=ContentType.objects.get_for_model(InfoItem),
info_item__name__isnull=False).annotate(info_item_count=Count('info_item'))
In my application i want to keep my Form id in the Dom element So that on click of my Dom element, i get to know the Form id and make use of that for further purpose.
For eg:
my app has a list of form names generated like
Contact Form
Personal Form
I want to save my form id that is 1 somewhere in the Dom element a.
And onclick of that link i want to make use of it for further things . How can i do .. Where can i save my Form id in the Dom element.Please suggest me..
Edit:
In my application by using JQuery, i am generating list of Form names by fetching it from by MYSQL database using CakePHP framework.
eg:
$('#entryManager').click(function(){
$("<p class='title2'>Forms</p>").appendTo("#fb_contentarea_col1top");
$("<ul class='formfield'>").appendTo("#fb_contentarea_col1down");
<?php foreach ($Forms as $r): ?>
$("<li><a id=Form'<?=$r['Form']['id'];?>' href='/FormBuilder/index.php/main/entryManager'><?=$r['Form']['name']?></a></li>").appendTo("#fb_contentarea_col1down .formfield");
<?php endforeach; ?>
return false;
});//entry Manager Click
On click of Entry manager the Form names are listed .
And now i want to use some function like onclick of each Form name i want to retrieve the Entries filled by invitees from the database.For this i want the FOrm id each Form name to store it somewhere in the DOm element so that i can get that value (form id) and send it to my ajax request to fetch the entries filled..How can i do so???
Don't use purely numeric id's, it's best if they start with a letter, but essentially you can can have...
<form id="form1"...>
And then store the information in your anchor like this...
<a rel="form1">Click...
Then you can pull the "rel" tag out and use it to reference form1.
This is technically stretching the purpose of the rel tag, but does work.
document.forms is an array that contains all of your forms and you can do something like this:
document.forms['myFormId'] and you would get the form of that ID. But yet I am not getting what you are trying to achieve. May be if you elaborate on it further then I can guide you better on this.