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SQLAlchemy: cascade delete
...ET parent_id = NULL WHERE parent_id = 5
Why you would want this I have no idea. I'd be surprised if many database engines even allowed you to set a valid foreign key to NULL, creating an orphan. Seems like a bad idea, but maybe there's a use case. Anyway, if you let SqlAlchemy do this, you will pre...
Trigger change() event when setting 's value with val() function
...s question, and your answer was the last completion I was looking for. The idea of tracking only works as a mental experiment, obviously it would utterly impractical, but it's illustrative; and the idea of the wrapper is awesome, and thank you for pointing out the "return this" part. Regards.
...
Surrogate vs. natural/business keys [closed]
...k_code = 'BUILD';
Unless anyone seriously thinks the following is a good idea?:
select sum(t.hours)
from timesheets t
where t.dept_id = 34394
and t.status_id = 89
and t.project_id = 1253
and t.task_id = 77;
"But" someone will say, "what happens when the code for MYPROJECT or VALID or HR cha...
Generate class from database table
...et; set; }
#endregion Instance Properties
}
}
It may be an idea to use EF, Linq to Sql, or even Scaffolding; however, there are times when a piece of coding like this comes in handy. Frankly, I do not like using EF navigation properties where the code it generates made 19,200 separat...
Automatic post-registration user authentication
...User successfully logged, but $this->getUser() object returns NULL. Any Idea?
– sathish
Feb 25 '14 at 11:15
2
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using facebook sdk in Android studio
...says 'Select modules to import' :$. I use Android Studio (beta) 0.8.2. Any idea?
– Diego Palomar
Jul 19 '14 at 22:26
2
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Combining Multiple Commits Into One Prior To Push
...limit yourself to one commit per push.
I generally find that it's a good idea to keep each commit a single, logical, coherent change, that includes everything it needs to work (so, it does not leave your code in a broken state). If you have a two commits, but they would cause the code to be broken...
Interface vs Base class
...utting their implementations in an abstract class to inherit will be a bad idea.
Your Dog and Cat definitions should now look like:
public class Dog : Mammal, IPettable
public class Cat : Mammal, IPettable
Theoretically you can override them from a higher base class, but essentially an interfac...
What is SOA “in plain english”? [closed]
...
SOA is a new badge for some very old ideas:
Divide your code into reusable modules.
Encapsulate in a module any design decision that is likely to change.
Design your modules in such a way that they can be combined in different useful ways (sometimes called a "...
How do I vertically align text in a div?
...ird hacks like this (somewhat defeats the "separating content from layout" idea), or take the multi-pass rendering hit and use non-static tables. I've never once had complaints from end users for table despite that I routinely break CSS fanboys' hearts. Most of em design only simple blogs & stat...