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How to add not null constraint to existing column in MySQL
...st practice to guard against such mishaps is to copy the column definition from the output of a SHOW CREATE TABLE YourTable query, modify it to include the NOT NULL constraint, and paste it into your ALTER TABLE... MODIFY... query.
...
UNIX export command [closed]
...you execute a program the child program inherits its environment variables from the parent. For instance if $HOME is set to /root in the parent then the child's $HOME variable is also set to /root.
This only applies to environment variable that are marked for export. If you set a variable at the co...
Using Notepad++ to validate XML against an XSD
...... Point to XSD file and I am pretty sure you'll be able to handle things from here.
Hope this saves you some time.
EDIT:
Plugin manager was not included in some versions of Notepad++ because many users didn't like commercials that it used to show. If you want to keep an older version, however st...
Correct way to integrate jQuery plugins in AngularJS
...t i have (had) a directive that has dependency injection of a service, and from the directive i ask the service to make an ajax call (with $http).
in the end, in both cases the ng-Repeat did not file at all, even when i gave the array an initial value.
i even tried to make a directive with a contr...
Is there a built in function for string natural sort?
...author). For your case, you can do either of the following:
>>> from natsort import natsorted, ns
>>> x = ['Elm11', 'Elm12', 'Elm2', 'elm0', 'elm1', 'elm10', 'elm13', 'elm9']
>>> natsorted(x, key=lambda y: y.lower())
['elm0', 'elm1', 'Elm2', 'elm9', 'elm10', 'Elm11', 'El...
Convert one date format into another in PHP
...n't recognize the y-m-d-h-i-s format.
PHP 5.3 and up
Use DateTime::createFromFormat. It allows you to specify an exact mask - using the date() syntax - to parse incoming string dates with.
PHP 5.2 and lower
You will have to parse the elements (year, month, day, hour, minute, second) manually usi...
rails i18n - translating text with links inside
...zle: The problem I realized with your approach is that it still won't work from inside the controller. I did some research and combined your approach with the one from Glenn on rubypond.
Here is what I came up with:
View helper, e.g. application_helper.rb
def render_flash_messages
messages ...
How do I get the number of elements in a list?
...list in a boolean context - it treated as False if empty, True otherwise.
From the docs
len(s)
Return the length (the number of items) of an object. The argument may be a sequence (such as a string, bytes, tuple, list, or range) or
a collection (such as a dictionary, set, or frozen set).
l...
Why is there a difference in checking null against a value in VB.NET and C#?
... Why answer the question by trial and error? Should be possible to do it from the language specifications.
– David Heffernan
Mar 20 '13 at 12:59
3
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Best practice for instantiating a new Android Fragment
...
From the developer docs, instantiate() Creates a new instance of a Fragment with the given class name. This is the same as calling its empty constructor.
– Brian Bowman
Feb 9 '14 at 16:1...