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Why can't I use a list as a dict key in python?
I'm a bit confused about what can/can't be used as a key for a python dict.
11 Answers
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Android: Vertical ViewPager [closed]
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You can use a ViewPager.PageTransformer to give the illusion of a vertical ViewPager. To achieve scrolling with a vertical instead of a horizontal drag you will have to override ViewPager's default touch events and swap the coordinates of MotionEvents prior ...
INSERT … ON DUPLICATE KEY (do nothing)
I have a table with a unique key for two columns:
3 Answers
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Error on renaming database in SQL Server 2008 R2
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@SamieyMehdi Should I use WITH ROLLBACk IMMEDIATE for multiuser?
– BendEg
Oct 20 '16 at 8:48
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Alter column, add default constraint
... table TableName
add constraint df_ConstraintNAme
default getutcdate() for [Date]
example
create table bla (id int)
alter table bla add constraint dt_bla default 1 for id
insert bla default values
select * from bla
also make sure you name the default constraint..it will be a pain in th...
How to get current user, and how to use User class in MVC5?
...logs.microsoft.com/aspnet/introducing-asp-net-identity-a-membership-system-for-asp-net-applications/
Example solution regarding how to extend the user profile by adding an extra property: https://github.com/rustd/AspnetIdentitySample
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Create Django model or update if exists
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If you're looking for "update if exists else create" use case, please refer to @Zags excellent answer
Django already has a get_or_create, https://docs.djangoproject.com/en/dev/ref/models/querysets/#get-or-create
For you it could be :
id =...
How to send FormData objects with Ajax-requests in jQuery? [duplicate]
The XMLHttpRequest Level 2 standard (still a working draft) defines the FormData interface. This interface enables appending File objects to XHR-requests (Ajax-requests).
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How to check if a column exists in a SQL Server table?
... arguments to COL_LENGTH need to be unquoted. It is theoretically possible for someone to create a column that does actually have a name of [COLUMN_NAME] - e.g. CREATE TABLE #T([[COLUMN_NAME]]] INT); SELECT * FROM #T and then it would be ambiguous if this was not the rule.
– Ma...
How do short URLs services work?
...l.com or bit.ly each time again, which makes it possible to count the hits for you (some tiny url services offer this).
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