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Rails 4 multiple image or file upload using carrierwave
...ate post_attachment scaffold
rails generate scaffold post_attachment post_id:integer avatar:string
rake db:migrate
In post.rb
class Post < ActiveRecord::Base
has_many :post_attachments
accepts_nested_attributes_for :post_attachments
end
In post_attachment.rb
class PostAttachment <...
Difference between val() and text()
... I clicked the save button. After that action the content in the textarea didnt change anymore. With setting content with .val('content') this problem didnt appear. Couldnt figure out why, but I think it has something to do with DOM cache-ing and different behaviour of these 2 methods.
...
How can I get column names from a table in SQL Server?
... Some thing like this should help:
SELECT * FROM sys.columns WHERE object_id = OBJECT_ID('dbo.yourTableName')
Or a variation would be:
SELECT o.Name, c.Name
FROM sys.columns c
JOIN sys.objects o ON o.object_id = c.object_id
WHERE o.type = 'U'
ORDER BY o.Name, c.Name
This ...
Missing Push Notification Entitlement
...
First App ID
make sure your ID push notification enable in production side
as appear in picture
Second Certificate
from production section create two certificate with your id (push notification enabled)
App Store and Ad ...
Execute stored procedure with an Output parameter?
...
I think the answer by Jaider below completes this answer since I myself would be interested in the written command and not the mouse solution.
– Alwyn Schoeman
Dec 6 '17 at 2:30
...
What is the (best) way to manage permissions for Docker shared volumes?
...nked blog post, still has value in the sense of how to think about data inside docker but consider using named volumes to implement the pattern described below rather than data containers.
I believe the canonical way to solve this is by using data-only containers. With this approach, all access t...
Android Spinner: Get the selected item change event
...
Some of the previous answers are not correct. They work for other widgets and views, but the documentation for the Spinner widget clearly states:
A spinner does not support item click
events. Calling this method will raise
an exception.
Better use OnItemSelectedListener() instead:...
How to disable / enable dialog negative positive buttons?
...builder = new AlertDialog.Builder(MainActivity.this);
builder.setIcon(android.R.drawable.ic_dialog_info);
builder.setTitle("Alert dialog title");
builder.setMessage("This is the example code snippet to disable button if edittext attached to dialog is empty.");
builder.setPositiveButton("PositiveButt...
Android - Back button in the title bar
...ityForResult(myIntent, 0);
return true;
}
That's it!
(In the Android developers API, it recommends messing around with the manifest and adding stuff like android:parentActivityName. But that doesn't seem to work for me. The above is simpler and more reliable.)
<meta-data
android:...
How to search for a part of a word with ElasticSearch
...nGram just as a filter. Here is my setup:
{
"index": {
"index": "my_idx",
"type": "my_type",
"analysis": {
"index_analyzer": {
"my_index_analyzer": {
"type": "custom",
"tokenizer": "standard",
"filter": [
"lowercase",
...