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Django database query: How to get object by id?
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If you want to get an object, using get() is more straightforward:
obj = Class.objects.get(pk=this_object_id)
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Difference between one-to-many and many-to-one relationship
...ce between one-to-many and many-to-one relationship? It is only reversed, kind of?
10 Answers
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MySQL: How to copy rows, but change a few fields?
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INSERT INTO Table
( Event_ID
, col2
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)
SELECT "155"
, col2
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FROM Table WHERE Event_ID = "120"
Here, the col2, ... represent the remaining column...
LINQ: Distinct values
I have the following item set from an XML:
7 Answers
7
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How to break a line of chained methods in Python?
I have a line of the following code (don't blame for naming conventions, they are not mine):
8 Answers
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Understanding PrimeFaces process/update and JSF f:ajax execute/render attributes
What exactly are process and update in PrimeFaces p:commandXxx components and execute and render in f:ajax tag?
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Immutable vs Mutable types
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What? Floats are immutable? But can't I do
x = 5.0
x += 7.0
print x # 12.0
Doesn't that "mut" x?
Well you agree strings are immutable right? But you can do the same thing.
s = 'foo'
s += 'bar'
print s # foobar
The value of the variable changes, but it changes by changing what the ...
How to get text box value in JavaScript
I am trying to use JavaScript to get the value from an HTML text box but value is not coming after white space
15 Answers
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How to implement a unique index on two columns in rails
I have a table and I'm trying to add a unique index on two columns. Those columns are also indexed. So my question is if I just can remove the indexes who were just for one column or if I have to use all three indexes:
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CSS selector with period in ID
The HTML spec allows for periods (.) in an id:
2 Answers
2
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