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Why can't I use Docker CMD multiple times to run multiple services?
...though CMD is written down in the Dockerfile, it really is runtime information. Just like EXPOSE, but contrary to e.g. RUN and ADD. By this, I mean that you can override it later, in an extending Dockerfile, or simple in your run command, which is what you are experiencing. At all times, there can b...
What is the difference between Raising Exceptions vs Throwing Exceptions in Ruby?
Ruby has two different exceptions mechanisms: Throw/Catch and Raise/Rescue.
3 Answers
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Easiest way to rename a model using Django/South?
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To answer your first question, the simple model/table rename is pretty straightforward. Run the command:
./manage.py schemamigration yourapp rename_foo_to_bar --empty
(Update 2: try --auto instead of --empty to avoid the warning below. Thanks to @...
Where to put view-specific javascript files in an ASP.NET MVC application?
...lder, etc) to put view-specific javascript files in an ASP.NET MVC application?
6 Answers
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Adding Core Data to existing iPhone project
...der file is no longer included by default. This is because of the introduction of Modules, which take away the need to use precompiled headers. While it is still possible to manually add a PCH file to globally include the CoreData headers, consider specifying the CoreData dependency using @import Co...
What are “Groovy” and “Grails” and what kinds of applications are built using them?
...both static and dynamic typing are supported.
What is Grails?
Grails (previously known as "Groovy on Grails") is a programming framework based on Groovy and inspired by Ruby on Rails (there are differences, but there are lots of similarities too). Like RoR, Grails promotes "coding by convention", d...
CSS :after not adding content to certain elements
I'm having trouble understanding the behavior of the CSS :after property. According to the spec ( here and here ):
3 An...
Clojure differences between Ref, Var, Agent, Atom, with examples
I'm very new to Clojure, Can you guys give me explanation with real world scenarios. I mean, where to use Ref, Var, Agent, Atom. I read book, but, still couldn't understand the real world examples.
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Why does jQuery or a DOM method such as getElementById not find the element?
...ou were trying to find wasn’t in the DOM when your script ran.
The position of your DOM-reliant script can have a profound effect upon its behavior. Browsers parse HTML documents from top to bottom. Elements are added to the DOM and scripts are (generally) executed as they're encountered. This me...
How can I set the aspect ratio in matplotlib?
I'm trying to make a square plot (using imshow), i.e. aspect ratio of 1:1, but I can't. None of these work:
5 Answers
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