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How do you write a migration to rename an ActiveRecord model and its table in Rails?
...tion file manually.
Edit:
In Rails 3.1 & 4, ActiveRecord::Migration::CommandRecorder knows how to reverse rename_table migrations, so you can do this:
class RenameOldTableToNewTable < ActiveRecord::Migration
def change
rename_table :old_table_name, :new_table_name
end
end
(You s...
Visual Studio debugger - Displaying integer values in Hex
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How can I recursively find all files in current and subfolders based on wildcard matching?
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How to do a GitHub pull request
...date that branch: if your pull request is rejected, you simply can add new commits, and/or redo your history completely: it will activate your existing pull request again.
"focus" that branch: i.e., make its topic "tight", don't modify thousands of class and the all app, only add or fix a well-defin...
Is there a standard naming convention for XML elements? [closed]
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I suspect the most common values would be camelCased - i.e.
<myTag someAttribute="someValue"/>
In particular, the spaces cause a few glitches if mixed with code-generators (i.e. to [de]serialize xml to objects), since not many language...
How do I redirect output to a variable in shell? [duplicate]
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This captures the output of a command, but it does not use a redirect. If you actually need to use a redirect because of a more complex need, See my answer. Google brought you here, right? Why go somewhere else to find the answer you searched for?
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Build .so file from .c file using gcc command line
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To generate a shared library you need first to compile your C code with the -fPIC (position independent code) flag.
gcc -c -fPIC hello.c -o hello.o
This will generate an object file (.o), now you take it and create the .so file:
gcc hello.o -shared -o libhello.so
E...
What to do on TransactionTooLargeException
...e of installation... I am getting same exception while checking my package com.test.installedornot.My .apk size is more than 9MB then in that case how i will manage this exception?
– DJhon
May 14 '14 at 6:32
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Android: Vertical ViewPager [closed]
...e coordinates of MotionEvents prior to handling them, e.g.:
/**
* Uses a combination of a PageTransformer and swapping X & Y coordinates
* of touch events to create the illusion of a vertically scrolling ViewPager.
*
* Requires API 11+
*
*/
public class VerticalViewPager extends ViewPa...