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What's the difference between identifying and non-identifying relationships?
...t make the foreign key to the parent part of the child's primary key. Formally, the "right" way to do this is to make the foreign key part of the child's primary key. But the logical relationship is that the child cannot exist without the parent.
Example: A Person has one or more phone numbers. ...
Django - what is the difference between render(), render_to_response() and direct_to_template()?
...and spanking new shortcut for render_to_response in 1.3 that will automatically use RequestContext that I will most definitely be using from now on.
2020 EDIT: It should be noted that render_to_response() was removed in Django 3.0
https://docs.djangoproject.com/en/1.8/topics/http/shortcuts/#rend...
Using IPython notebooks under version control
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Here is my solution with git. It allows you to just add and commit (and diff) as usual: those operations will not alter your working tree, and at the same time (re)running a notebook will not alter your git history.
Although this can probably be adapted to ...
Differences between .NET 4.0 and .NET 4.5 in High level in .NET
... Redirecting a Page
Shrinking Session State
Expanding the Range of Allowable URLs
Extensible Request Validation
Object Caching and Object Caching Extensibility
Extensible HTML, URL, and HTTP Header Encoding
Performance Monitoring for Individual Applications in a Single Wor...
How to format numbers as currency string?
... 2489.82
profits.toFixed(7) //returns 2489.8237000 (pads the decimals)
All you need is to add the currency symbol (e.g. "$" + profits.toFixed(2)) and you will have your amount in dollars.
Custom function
If you require the use of , between each digit, you can use this function:
function f...
Creating threads - Task.Factory.StartNew vs new Thread()
I am just learning about the new Threading and Parallel libraries in .Net 4
4 Answers
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Android How to adjust layout in Full Screen Mode when softkeyboard is visible
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Based on yghm's workaround, I coded up a convenience class that allows me to solve the problem with a one-liner (after adding the new class to my source code of course). The one-liner is:
AndroidBug5497Workaround.assistActivity(this);
And the implementation class is:
public cla...
Spring MVC type conversion : PropertyEditor or Converter?
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With all these drawbacks, why using Converters ? Am I missing
something ? Are there other tricks that I am not aware of ?
No, I think you have very comprehensively described both PropertyEditor and Converter, how each one is d...
Git submodule add: “a git directory is found locally” issue
I'm actually trying to learn how to use git, including the git submodule subcommands.
I already set up a server on which I can host, push and pull git repositories by using SSH.
I created a main git repository "Travail" on this server in which I would like to put all my projects as submodules.
...
Can I do a partial revert in GIT
...without creating a new one by adding the '--no-commit' option. This leaves all the reverted files in the staging area. From there, I'd perform a soft reset and add in the changes I really wanted. For an example workflow:
git revert <sha-of-bad-commit> --no-commit
git reset // This gets them...