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How to reverse a 'rails generate'
I want to delete all the files it created and roll back any changes made, but not necessarily to the database, but more to the config files.
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Uniq by object attribute in Ruby
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Do it on the database level:
YourModel.find(:all, :group => "status")
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Put buttons at bottom of screen with LinearLayout?
...d:gravity="center|bottom"
Notice that fill_parent does not mean "take up all available space". However, if you use layout_height="0dp" with layout_weight="1", then a view will take up all available space (Can't get proper layout with "fill_parent").
Here is some code I quickly wrote up that uses ...
How do you design object oriented projects? [closed]
.... If you're a Java developer, NetBeans 6.7 from Sun has a UML module that allows for diagramming as well as round-trip engineering and it's FREE. Eclipse (an open source Java IDE), also has a modeling framework, but I have no experience with it. You may also want to try out ArgoUML, an open sour...
Spring DAO vs Spring ORM vs Spring JDBC
...er that this has limited usage for the following reasons:
Your should usually not catch persistence exceptions, as the provider may have rolled back the transaction (depending on the exact exception subtype), and thus you should not continue the execution with an alternative path.
The hierarchy of...
Show loading image while $.ajax is performed
...te: function(){
$('#loading-image').hide();
}
});
I usually prefer the more general solution of binding it to the global ajaxStart and ajaxStop events, that way it shows up for all ajax events:
$('#loading-image').bind('ajaxStart', function(){
$(this).show();
}).bind('ajaxSt...
How to implement one-to-one, one-to-many and many-to-many relationships while designing tables?
...ss_id, student_id # the junction table
Example queries:
-- Getting all students for a class:
SELECT s.student_id, last_name
FROM student_classes sc
INNER JOIN students s ON s.student_id = sc.student_id
WHERE sc.class_id = X
-- Getting all classes for a student:
SELEC...
Is it possible to get element from HashMap by its position?
How to retrieve an element from HashMap by its position, is it possible at all?
14 Answers
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fatal: 'origin' does not appear to be a git repository
... set-url origin ssh://git@github.com/username/newRepoName.git
After this all commands started working fine. You can check the change by using
git remote -v
In my case after successfull change it showed correct renamed repo in URL
[aniket@alok Android]$ git remote -v
origin ssh://git@github.c...
Count immediate child div elements using jQuery
... how the question specifies he wants to count only the "div" elements, not all elements.
– Angel Blanco
Mar 5 '14 at 11:55
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