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Combine two ActiveRecord::Relation objects
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If you want to combine using AND (intersection), use merge:
first_name_relation.merge(last_name_relation)
If you want to combine using OR (union), use or†:
first_name_relation.or(last_name_relation)
† Only in ActiveRecord 5+; for 4.2 install ...
How to use Servlets and Ajax?
I'm very new to web apps and Servlets and I have the following question:
7 Answers
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Android ListView with different layouts for each row
...ou should use based on position
Then you inflate layout only if it's null and determine type using getItemViewType.
Look at this tutorial for further information.
To achieve some optimizations in structure that you've described in comment I would suggest:
Storing views in object called ViewHold...
How to Reload ReCaptcha using JavaScript?
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i'm using this grecaptcha.reset(); for my react apps, and it works perfectly
– yussan
Apr 16 '16 at 16:41
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Android list view inside a scroll view
I have an android layout which has a scrollView with a number of elements with in it. At the bottom of the scrollView I have a listView which is then populated by an adapter.
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android get real path by Uri.getPath()
...ssary for you to get a physical path?
For example, ImageView.setImageURI() and ContentResolver.openInputStream() allow you to access the contents of a file without knowing its real path.
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How to change max_allowed_packet size
...on in your file:
max_allowed_packet=500M
then restart the MySQL service and you are done.
See the documentation for further information.
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MVC 5 Seed Users and Roles
...ave been playing about with the new MVC 5, I have a few models, controller and views setup using code first migrations.
7 ...
Specify an SSH key for git push for a given domain
...ey. AFAIK, I can't solve this using ~/.ssh/config , because the user name and server name are identical in both cases. As I mostly use my own private key, I have that defined in ~/.ssh/config for git@git.company.com . Does anyone know of a way to override the key that is used for a single git ...
RESTful URL design for search
...edan&doors=4
An advantage to regular querystrings is that they are standard and widely understood and that they can be generated from form-get.
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