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What are best practices for multi-language database design? [closed]
...ble for a specified language.
Example:
Table "Product":
----------------
ID : int
<any other language-neutral fields>
Table "ProductTranslations"
---------------------------
ID : int (foreign key referencing the Product)
Language : varchar (e...
How to convert a Django QuerySet to a list
...
You could do this:
import itertools
ids = set(existing_answer.answer.id for existing_answer in existing_question_answers)
answers = itertools.ifilter(lambda x: x.id not in ids, answers)
Read when QuerySets are evaluated and note that it is not good to load th...
The object cannot be deleted because it was not found in the ObjectStateManager
... instance). Try this:
protected MyEntities sqlEntities;
public virtual void Delete(TEntity entity)
{
sqlEntities.Attach(entity);
sqlEntities.DeleteObject(entity);
sqlEntities.SaveChanges();
}
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Pretty-print C++ STL containers
... same data type in different formattings, you'll probably have to write at least one small wrapper anyway. This isn't a highly-configurable formatting library, but rather a zero-effort sensible-default library that magically lets you print containers without thinking... (But if you want more global ...
Android: combining text & image on a Button or ImageButton
...ackground.
If you are looking for something similar in xml there is:
android:background attribute which works the same way.
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Differences between cookies and sessions?
...
Sessions are server-side files that contain user information, while Cookies are client-side files that contain user information. Sessions have a unique identifier that maps them to specific users. This identifier can be passed in the URL or saved...
What does inverse_of do? What SQL does it generate?
...the documentation, it seems like the :inverse_of option is a method for avoiding SQL queries, not generating them. It's a hint to ActiveRecord to use already loaded data instead of fetching it again through a relationship.
Their example:
class Dungeon < ActiveRecord::Base
has_many :traps, :in...
How to add display:inline-block in a jQuery show() function?
...
Instead of show, try to use CSS to hide and show the content.
function switch_tabs(obj) {
$('.tab-content').css('display', 'none'); // you could still use `.hide()` here
$('.tabs a').removeClass("selected");
var id = obj.attr("rel");
$('#' + i...
How to set OnClickListener on a RadioButton in Android?
I have two RadioButton s inside a RadioGroup . I want to set OnClickListener on those RadioButton s. Depending on which RadioButton is clicked, I want to change the text of an EditText . How can I achieve this?
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Postgres NOT in array
...sing Postgres' native array type, and trying to find the records where the ID is not in the array recipient IDs.
7 Answers...