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Django optional url parameters

...iews.foo), url(r'^project_config/(?P<product>\w+)/(?P<project_id>\w+)/$', views.foo), ) Keep in mind that in your view you'll also need to set a default for the optional URL parameter, or you'll get an error: def foo(request, optional_parameter=''): # Your code goes here ...
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How do I make a LinearLayout scrollable?

... You can implement it using View.scrollTo(..) also. postDelayed(new Runnable() { public void run() { counter = (int) (counter + 10); handler.postDelayed(this, 100); llParent.scrollTo(counter , 0); } ...
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Infinite Recursion with Jackson JSON and Hibernate JPA issue

... Since Jackson 1.6 there's a better solution: you can use two new annotations to solve infinite recursion problem without ignoring the getters/setters during serialization. See my answer below for details. – Kurt Bourbaki Feb 5 '14 at 12:00 ...
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How to programmatically set the layout_align_parent_right attribute of a Button in Relative Layout?

...dRule(RelativeLayout.LEFT_OF, R.id.id_to_be_left_of);TextView tvUserName = new TextView(act); – Saint Robson Feb 5 '14 at 10:31 ...
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Using “label for” on radio buttons

...l = function(e) { var $elem = $('.new-login-left'), docViewTop = $window.scrollTop(), docViewBottom = docViewTop + $window.height(), ...
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How to reshape data from long to wide format

...hape2 package as indicated in one of the other answers. You could create a new question that's specific to your use case and post it if you can't figure it out. – Chase Feb 10 '16 at 3:16 ...
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JUnit tests pass in Eclipse but fail in Maven Surefire

...rated (which I ignored) whereas I was using SpringJUnit4ClassRunner for my new test cases. Adding SpringJUnit4ClassRunner annotation to autogenerated test solved it for me. – Avnish Oct 3 '15 at 10:40 ...
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How can I use NSError in my iPhone App?

...or reference with error data and return nil from the method. Example: - (id) endWorldHunger:(id)largeAmountsOfMonies error:(NSError**)error { // begin feeding the world's children... // it's all going well until.... if (ohNoImOutOfMonies) { // sad, we can't solve world hunger, ...
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How to declare a variable in a PostgreSQL query

... This is ideal for when I have a migration script where I want to import some relational data. Obviously I won't know the sequence id the relational data is given. – Relequestual Feb 13 '15 at 9:...
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Is there a MySQL option/feature to track history of changes to records?

... records in a MySQL database. So when a field has been changed, the old vs new is available and the date this took place. Is there a feature or common technique to do this? ...