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Implementing Comments and Likes in database

...ity tables Photo, Article, Place have their own PK e.g. PhotoID, ArticleID etc but also have another column for the Entity_ID as a FK? Is this unnecessary? – volume one Sep 17 '14 at 21:03 ...
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Automatically update version number

...eflection.Assembly.GetExecutingAssembly(); object[] attributes = assembly.GetCustomAttributes(typeof(System.Reflection.AssemblyFileVersionAttribute), false); object attribute = null; if (attributes.Length > 0) { attribute = attributes[0] as System.Reflection.AssemblyFileVersionAttribute; } ...
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Get the closest number out of an array

... could use a higher order function to do that too. – dmp Apr 25 '15 at 19:45 4 ...
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Android View.getDrawingCache returns null, only null

...d. All attempts then, using view.getWidth(), view.getLayoutParams().width, etc., including view.getDrawingCache() and view.buildDrawingCache(), are useless. So, you need first to set dimensions to the view, e.g.: view.layout(0, 0, width, height); (You have already set 'width' and 'height' as you ...
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Is the primary key automatically indexed in MySQL?

...are frequently used in where clauses, and in any kind of sorting, such as "order by". You might be working on a more complex database, so it's good to remember a few simple rules. Indexes slow down inserts and updates, so you want to use them carefully on columns that are FREQUENTLY updated. Index...
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Use Fieldset Legend with bootstrap

...egend element to 100%. You can fix this by changing your legend.scheduler-border to also use: legend.scheduler-border { width:inherit; /* Or auto */ padding:0 10px; /* To give a bit of padding on the left and right */ border-bottom:none; } JSFiddle example. You'll also need to ensure...
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What kinds of patterns could I enforce on the code to make it easier to translate to another program

... My answer will address the specific task of parsing Python in order to translate it to another language, and not the higher-level aspects which Ira addressed well in his answer. In short: do not use the parser module, there's an easier way. The ast module, available since Python 2.6 i...
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Is “IF” expensive?

... At the very lowest level (in the hardware), yes, ifs are expensive. In order to understand why, you have to understand how pipelines work. The current instruction to be executed is stored in something typically called the instruction pointer (IP) or program counter (PC); these terms are synonym...
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What is the difference between application server and web server?

...rvers have plugins to support scripting languages like Perl, PHP, ASP, JSP etc. through which these servers can generate dynamic HTTP content. Most of the application servers have Web Server as integral part of them, that means App Server can do whatever Web Server is capable of. Additionally App S...
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how to prevent “directory already exists error” in a makefile when using mkdir

...BJDIR) You should see here the usage of the | pipe operator, defining an order only prerequisite. Meaning that the $(OBJDIR) target should be existent (instead of more recent) in order to build the current target. Note that I used mkdir -p. The -p flag was added compared to the example of the doc...