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Python extending with - using super() Python 3 vs Python 2
...(when you subclass one class only), your new class inherits methods of the base class. This includes __init__. So if you don't define it in your class, you will get the one from the base.
Things start being complicated if you introduce multiple inheritance (subclassing more than one class at a time...
Rails raw SQL example
...ql = "Select * from ... your sql query here"
records_array = ActiveRecord::Base.connection.execute(sql)
records_array would then be the result of your sql query in an array which you can iterate through.
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How to filter git diff based on file extensions?
...anch had additional files not present in the other branch (thus the 'find' based ones are remiss).
Anyway this worked for me (in my example, looking for a diff between python files):
git diff branch1 branch2 -- `git diff --summary branch1 branch2 | egrep '\.py$' | cut -d ' ' -f 5`
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How do I get list of all tables in a database using TSQL?
...at is the best way to get the names of all of the tables in a specific database on SQL Server?
17 Answers
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Is it possible for git-merge to ignore line-ending differences?
...is not the only one that does merges; other commands like checkout -m or rebase do as well.
Unfortunately, the only area of the code that checked for the "merge.renormalize" config setting was in builtin/merge.c, meaning it could only affect merges performed by the "merge" command.
Move the handling...
Why don't structs support inheritance?
...ings happen, as can be seen in C++.
Consider this pseudo-C# code:
struct Base
{
public int A;
}
struct Derived : Base
{
public int B;
}
void Square(Base[] values)
{
for (int i = 0; i < values.Length; ++i)
values [i].A *= 2;
}
Derived[] v = new Derived[2];
Square (v);
By nor...
Struct inheritance in C++
... deriving a struct from a class/struct, the default access-specifier for a base class/struct is public. And when deriving a class, the default access specifier is private.
For example, program 1 fails with a compilation error and program 2 works fine.
// Program 1
#include <stdio.h>
class B...
Thou shalt not inherit from std::vector
...ector will not be copied. The same would be true of calling swap through a base pointer/reference. I tend to think any kind of inheritance hierarchy that risks object slicing is a bad one.
– stinky472
Sep 30 '12 at 22:14
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How can I see the SQL that will be generated by a given ActiveRecord query in Ruby on Rails
... solution.
The method is construct_finder_sql(options) (lib/active_record/base.rb:1681) you will have to use send because it is private.
Edit: construct_finder_sql was removed in Rails 5.1.0.beta1.
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How can I get the full/absolute URL (with domain) in Django?
...n your INSTALLED_APPS, it won't hit the DB at all, and provide information based on the Request object (see get_current_site)
– Darb
Jan 31 '12 at 10:04
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