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Difference between Django's annotate and aggregate methods?
Django's QuerySet has two methods, annotate and aggregate . The documentation says that:
3 Answers
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Sharing src/test classes between modules in a multi-module maven project
I have a multi-module Maven project. For the sake of this example, consider two modules:
2 Answers
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How to create a new java.io.File in memory?
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To write to a stream, in memory, use:
new ByteArrayOutputStream();
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Idiomatic way to convert an InputStream to a String in Scala
I have a handy function that I've used in Java for converting an InputStream to a String. Here is a direct translation to Scala:
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Django - limiting query results
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Django querysets are lazy. That means a query will hit the database only when you specifically ask for the result.
So until you print or actually use the result of a query you can filter further with no database access.
As you can...
VIM ctrlp.vim plugin: how to rescan files?
I have come across the awesome ctrlp.vim plugin . It is a good alternative to the Command-T plugin which I have used before. What I did not like about Command-T is that it would take about 20-30 seconds to rescan files when it is invoked for the first time after starting vim.
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How to push new branch without history
I have git repo with two unrelated branches, master and configs.
I've created configs, purged all the files and then placed in configuration files only.
Now I want to push this on remote repo, but as it were new, empty branch (without logs of all my changes and old revisions of original branch).
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How to PUT a json object with an array using curl
I have a series of data to enter into database. The user interface to enter the data isn't good for bulk entry, so I'm trying to formulate a command line equivalent. When I examine the network request of the UI in chrome, I see a PUT request of a json object. When I try to replicate the request
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Determining type of an object in ruby
I'll use python as an example of what I'm looking for (you can think of it as pseudocode if you don't know Python):
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Accidentally committed .idea directory files into git
I have accidentally committed the .idea/ directory into git. This is causing conflicts everywhere else I need to checkout my repo. I was wondering how do I remove these files from the remote?
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