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Adding :default => true to boolean in existing Rails column
...st go in the rails console and update all the records (which I would not recommend in production).
When you added t.boolean :show_attribute, :default => true to the create_profiles migration, it's expected that it didn't do anything. Only migrations that have not already been ran are executed. If...
How to set time delay in javascript
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@ishandutta2007 see my answer below -> stackoverflow.com/a/49813472/3919057
– Rohith K P
Sep 23 '19 at 6:43
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Why does DEBUG=False setting make my django Static Files Access fail?
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How to check if a string contains only digits in Java [duplicate]
...n java, the matches method (which was specified in the question) matches a complete string, not fragments. In other words, it is not necessary to use ^\\d+$ (even though it is also correct). Please see the last negative test case.
Please note that if you use an online "regex checker" then this may ...
What is Lazy Loading?
...m disk, and doing calculations and whatnot long before it is ever needed.
Compare this to lazy loading, the application would start much faster, but then the first time you need to do something that requires some long running load, there may be a slight pause while it is loaded for the first time. ...
BAT file: Open new cmd window and execute a command in there
I'm trying to open a new command window in a BAT file:
8 Answers
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How do you unit test a Celery task?
...hen working with celery tasks. The first one (as I'm suggesting bellow) is completely synchronous and should be the one that makes sure the algorithm does what it should do. The second session uses the whole system (including the broker) and makes sure I'm not having serialization issues or any othe...
Rails: How to change the title of a page?
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Regular Expression for alphanumeric and underscores
...r}\p{gc=Number}_] is all you need to do this right, presuming there are no combining characters.
– tchrist
Jun 10 '12 at 5:09
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