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How does Rails keep track of which migrations have run for a database?
...pecially useful when you are using a mix of a mountable engine and a dummy app
– Donato
May 7 '15 at 20:38
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How can I give eclipse more memory than 512M?
...your platform. For Windows, it's located in the same folder as the Eclipse app. For OS X, you'll need to "Show Package Contents" on the Eclipse app, then edit Contents/MacOS/eclipse.ini in a text editor. Not sure about Linux... exercise left to the reader? :-)
– sherb
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Get screen width and height in Android
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Are the width and height swapped if the device is rotated?
– Madeyedexter
Nov 28 '16 at 6:51
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How do I define a method in Razor?
...t;/code> Razor options you can use a file such as Shared.cshtml in your App_Code folder. In there you can define <code>@functions {}</code> or <code>@helper MyFunction() {}</code> and use them in your other Razor templates like <code>@Shared.MyFunction()</code>...
Permission denied for relation
...t;schema> TO <role>
To specify default permissions that will be applied to future tables use:
ALTER DEFAULT PRIVILEGES IN SCHEMA <schema>
GRANT <privileges> ON TABLES TO <role>;
e.g.
ALTER DEFAULT PRIVILEGES IN SCHEMA public
GRANT SELECT, INSERT, UPDATE, DELETE...
AttributeError: 'module' object has no attribute
...an safely do import b without causing problems.
(At first glance it might appear that cause_a_to_do_something() would be hugely inefficient because it does an import every time you call it, but in fact the import work only gets done the first time. The second and subsequent times you import a modu...
What's the difference between the atomic and nonatomic attributes?
... astronomicalEvents; that lists data I want to display in the UI. When the application launches the pointer points to an empty array, then the app pulls data from the web. When the web request completes (in a different thread) the app builds a new array then atomically sets the property to a new poi...
How to increase the maximum number of opened editors in IntelliJ?
I am building a grails-app with IntelliJ 9.0 and I am a huge fan of the CTR+TAB shortcut that switches between active editors.
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How to set environment variables in Jenkins?
...valuates to key=value. In my use case I generate the line completely: cat app/build.gradle | grep "def majorVersion" | python -c 'import sys,re,os; print("VERSION_NUMBER="+re.findall(r"[\d+\.]+", sys.stdin.read())[0]+os.environ["BUILD_NUMBER"])'
– kenny_k
Jun ...
How do I preview emails in Rails?
...eview/modify mails they are about to send ? (Ex : a manager refuses a user application, and an email is sent to warn the applicant)
– Cyril Duchon-Doris
Feb 20 '15 at 20:51
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