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Difference between rake db:migrate db:reset and db:schema:load
... database
rake db:schema:load If you wanna reset database to schema as provided in schema.rb (This will delete all data)
Explanations
rake db:schema:load will set up the schema as provided in schema.rb file. This is useful for a fresh install of app as it doesn't take as much time as db:migrate
Im...
Why should I use core.autocrlf=true in Git?
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The only specific reasons to set autocrlf to true are:
avoid git status showing all your files as modified because of the automatic EOL conversion done when cloning a Unix-based EOL Git repo to a Windows one (see issue 83 for instance)
and your coding tools somehow depends on a nati...
One DbContext per web request… why?
... echoing Ian: Having a single DbContext for the whole application is a Bad Idea. The only situation where this makes sense is when you have a single-threaded application and a database that is solely used by that single application instance. The DbContext is not thread-safe and and since the DbConte...
What is the significance of ProjectTypeGuids tag in the visual studio project file
What is the significance of the ProjectTypeGuids tag in a visual studio project?? When I created a WPF application, i am seeing two GUIDs in here.
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What does the git index contain EXACTLY?
...ndex entries.
A number of sorted index entries.
Extensions:
Extensions are identified by signature.
Optional extensions can be ignored if Git does not understand them.
Git currently supports cached tree and resolve undo extensions.
4-byte extension signature. If the first byte is 'A'..'Z' the extens...
Why is it bad practice to call System.gc()?
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The reason everyone always says to avoid System.gc() is that it is a pretty good indicator of fundamentally broken code. Any code that depends on it for correctness is certainly broken; any that rely on it for performance are most likely broken.
You don't know ...
Rails 3.1: Engine vs. Mountable App
...ccur.
A mountable engine could be used in situations where you want to avoid name conflicts and bundle the engine under one specific route in the parent application. For example, I am working on building my first engine designed for customer service. The parent application could bundle it's funct...
CoffeeScript, When to use fat arrow (=>) over arrow (->) and vice versa
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As I said "The last line there is a workaround for cases where the thin-arrow has been used."
– nicolaskruchten
Sep 23 '12 at 4:36
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Caveats of select/poll vs. epoll reactors in Twisted
... and Poll based networking, especially with Twisted. Which makes me paranoid, its pretty rare for a better technique or methodology not to come with a price.
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What is Mocking?
...ck to answer my own question above. The answer, is that the only way to validate that the code went through the desired function and not another function is using a bool check. Using that bool check is the distinction between stubs and mocks. Having that said a lot of times you literally just test t...