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Separation of business logic and data access in django

I am writing a project in Django and I see that 80% of the code is in the file models.py . This code is confusing and, after a certain time, I cease to understand what is really happening. ...
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R cannot be resolved - Android error

I just downloaded and installed the new Android SDK. I wanted to create a simple application to test drive it. 108 Answers ...
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Can you Run Xcode in Linux?

...Xcode (the gcc compiler family, the gdb debugger, etc.) is all open source and common to Unix and Linux platforms. But the IDE--the editor, project management, indexing, navigation, build system, graphical debugger, visual data modeling, SCM system, refactoring, project snapshots, etc.--is a Mac OS...
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getExtractedText on inactive InputConnection warning on android

...rone to problems when the user rapidly alternates between typing something and pressing the button or presses the button when the app is under sufficient load, etc. Fortunately, I found another way to clear text: Editable.clear(). With this I don't get warnings at all: if (editText.length() > 0...
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Merge and interleave two arrays in Ruby

...ept that the two rows don't conform, leaving #zip as the obvious solution. And I don't believe he meant that he really cared whether a was mutated ... I don't think he was commenting on a mutated vs functional solution at all, he was just trying to describe the pattern. – Digit...
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Semantic-ui vs Bootstrap [closed]

Which is the best one to use and if possible, please provide the difference(s) and advantages of these two. 3 Answers ...
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Difference between abstract class and interface in Python

What is the difference between abstract class and interface in Python? 8 Answers 8 ...
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What's the difference between a POST and a PUT HTTP REQUEST?

... HTTP PUT: PUT puts a file or resource at a specific URI, and exactly at that URI. If there's already a file or resource at that URI, PUT replaces that file or resource. If there is no file or resource there, PUT creates one. PUT is idempotent, but paradoxically PUT responses are n...
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Becoming better at Vim [closed]

... a long time, but I'm at a level where I use insert mode most of the time, and I still use the arrow keys to move around(!). ...
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Why use Object.prototype.hasOwnProperty.call(myObj, prop) instead of myObj.hasOwnProperty(prop)?

If I understand correctly, each and every object in Javascript inherits from the Object prototype, which means that each and every object in Javascript has access to the hasOwnProperty function through its prototype chain. ...