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Multiple ModelAdmins/views for same model in Django admin

... I've found one way to achieve what I want, by using proxy models to get around the fact that each model may be registered only once. class PostAdmin(admin.ModelAdmin): list_display = ('title', 'pubdate','user') class MyPost(Post): class Meta: proxy =...
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Android Quick Actions UI Pattern

... Till the official Twitter app is open sourced by Google, you may want to take a look at this implementation: http://www.londatiga.net/it/how-to-create-quickaction-dialog-in-android/ Really easy to use and works great. ...
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Can't use Swift classes inside Objective-C

...ally, I found the right answer! Hope this post will help someone :-) Step by step Swift integration for Xcode Objc-based project: Create new *.swift file (in Xcode) or add it by using Finder. Create an Objective-C bridging header when Xcode asks you about that. Implement your Swift class: import...
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Android : Check whether the phone is dual SIM

...SIM = telephonyInfo.isDualSIM(); TextView tv = (TextView) findViewById(R.id.tv); tv.setText(" IME1 : " + imeiSIM1 + "\n" + " IME2 : " + imeiSIM2 + "\n" + " IS DUAL SIM : " + isDualSIM + "\n" + " IS SIM1 READY : " + isSIM1Ready + "\n" +...
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Does free(ptr) where ptr is NULL corrupt memory?

...tr); Description The free function causes the space pointed to by ptr to be deallocated, that is, made available for further allocation. If ptr is a null pointer, no action occurs. See ISO-IEC 9899. That being said, when looking at different codebases in the wild, you'll notice peo...
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Does R have an assert statement as in python?

...ALSE){ warning("error message to print") } These are both provided by base R and require no packages to run or include in writing your own functions. I prefer this approach to write code with fewer dependancies and this syntax is widely used in package development. However, similar functiona...
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What are the differences between concepts and template constraints?

...y: For x and y of type T: if x == y, a new object of the same type created by copy construction T{x} == y and still x == y (that is, it is non-destructive). Concepts Now concepts are very easy to define; they are simply the combination of constraints and axioms. They provide an abstract requireme...
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How slow are .NET exceptions?

...'ve never seen an application whose performance was significantly impaired by exceptions. Basically, exceptions shouldn't happen often unless you've got significant correctness issues, and if you've got significant correctness issues then performance isn't the biggest problem you face. ...
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Visual Studio: Make view code default

Is there any way to make Visual Studio show the code of a control / form by default instead of the designer? I tend not to be a fan of the designers as they add bloat. ...
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Using jQuery to compare two arrays of Javascript objects

... them. The best answer I could find for how to do that in a jQuery way was by none other than John Resig here on SO! What is the most efficient way to deep clone an object in JavaScript? (see comments on his answer for the array version of the object cloning recipe) In which case I think the code f...