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Rails 4 multiple image or file upload using carrierwave
...iveRecord::Base
has_many :post_attachments
accepts_nested_attributes_for :post_attachments
end
In post_attachment.rb
class PostAttachment < ActiveRecord::Base
mount_uploader :avatar, AvatarUploader
belongs_to :post
end
In post_controller.rb
def show
@post_attachments = @post....
Custom ImageView with drop shadow
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Okay, I don't foresee any more answers on this one, so what I ended up going with for now is just a solution for rectangular images. I've used the following NinePatch:
along with the appropriate padding in XML:
<ImageView
andro...
How to differ sessions in browser-tabs?
...a web-application implemented in java using JSP and Servlets; if I store information in the user session, this information is shared from all the tabs from the same browser. How to differ sessions in the browser-tabs?
In this example:
...
When should I use the assets as opposed to raw resources in Android?
... covered the Assets and Raw resources. I'm trying to understand the reason for using Raw resources vs. Assets.
3 Answers
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XPath to select Element by attribute value
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You need to remove the / before the [. Predicates (the parts in [ ]) shouldn't have slashes immediately before them. Also, to select the Employee element itself, you should leave off the /text() at the end or otherwise you'd just be selecting the whit...
How do I display an alert dialog on Android?
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You could use an AlertDialog for this and construct one using its Builder class. The example below uses the default constructor that only takes in a Context since the dialog will inherit the proper theme from the Context you pass in, but there's also a c...
WAMP shows error 'MSVCR100.dll' is missing when install
...stall the above check if your wamp installation is correctly setup. Search for "my wamp icon stays orange" posts.
UPDATE 2019
Wampserver 3 requires Visual C++ Redistributable for Visual Studio 2012 Update 4
You can download it at:
https://www.microsoft.com/en-us/download/details.aspx?id=306...
Android, How to limit width of TextView (and add three dots at the end of text)?
...t characters of it. Actually, I can do this but the thing that I'm looking for is how to add three dots (...) at the end of string. This one shows the text has continue. This is my XML but there is no dots although it limit my text.
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jQuery Get Selected Option From Dropdown
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For dropdown options you probably want something like this:
var conceptName = $('#aioConceptName').find(":selected").text();
The reason val() doesn't do the trick is because clicking an option doesn't change the value of t...
SQL Group By with an Order By
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Although OP is using MySQL, this answer also worked for me in HSQL (Libreoffice built-in)
– Arno Teigseth
Nov 17 '15 at 2:39
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