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What is the difference between pluck and collect in Rails?
...particular field. See this.
When you do:
User.first.gifts.collect(&:id)
You have objects with all fields loaded and you simply get the id thanks to the method based on Enumerable.
So:
if you only need the id with Rails 4, use ids: User.first.gifts.ids
if you only need some fields with Ra...
How to jQuery clone() and change id?
I need to clone the id and then add a number after it like so id1 , id2 , etc. Everytime you hit clone you put the clone after the latest number of the id.
...
Convert camelCaseText to Sentence Case Text
...rts, not what I expect, I want a USB Ports
– signonsridhar
Jun 19 '17 at 18:27
what about writing like Non-GoogleChrom...
Setting up foreign keys in phpMyAdmin?
... an index on the foreign key column in the referring table (so foo_bar.foo_id, in your case). Then, go to relation view (in the referring table) and select the referred column (so in your case foo.id) and the on update and on delete actions.
I think foreign keys are useful if you have multiple tabl...
How do I fetch a single model in Backbone?
...e;
return base + (base.charAt(base.length - 1) == '/' ? '' : '/') + this.id;
},
This approach assumes that you have implemented controllers with the hashbang in your URL like so, http://www.mydomain.com/#clocks/123 , but it should work even if you haven't yet.
...
In Angular, I need to search objects in an array
...gular, I have in scope a object which returns lots of objects. Each has an ID (this is stored in a flat file so no DB, and I seem to not be able to user ng-resource )
...
Managing CSS Explosion
...ange does ("This is to make sure the box is left aligned in IE < 7")
Avoid redundancies, e.g. defining the same thing in .classname and .classname:hover.
Use comments /** Head **/ to build a clear structure.
Use a prettifier tool that helps maintain a constant style. I use Polystyle, with which I...
How to submit a form with JavaScript by clicking a link?
...
<input type="submit" value="submit" />
The best JS way
<form id="form-id">
<button id="your-id">submit</button>
</form>
var form = document.getElementById("form-id");
document.getElementById("your-id").addEventListener("click", function () {
form.submit();
}...
Picking a random element from a set
...le element and the data is stored in a HashSet.
– David Nehme
Sep 25 '08 at 2:00
8
@David Nehme: ...
Cookie overflow in rails application?
...session'
UPDATE:
If anyone is receiving a null value in column "session_id" violates not-null constraint message in rails 4, there's a workaround in github(not tested). You must to create an initializer with ActiveRecord::SessionStore::Session.attr_accessible :data, :session_id
...