大约有 32,294 项符合查询结果(耗时:0.0422秒) [XML]
Join/Where with LINQ and Lambda
...dirt easy. If you're using entity and don't have that navigation property, what are you waiting for?
database
.Posts
.Where(post => post.ID == id)
.Select(post => new { post, post.Meta });
If you're doing code first, you'd set up the property thusly:
class Post {
[Key]
public int...
Convert SQLITE SQL dump file to POSTGRESQL
...ions mentioned in https://stackoverflow.com/a/4581921/1303625, but it does what I needed it to do. Hopefully it will be a good starting point for others.
https://gist.github.com/2253099
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im...
How do I delete unpushed git commits?
...
In fact, if you don't care about checking out, you can set the branch to whatever you want with:
git branch -f <branch-name> <SHA>
This would be a programmatic way to remove commits from a branch, for instance, in order to copy new commits to it (using rebase).
Suppose you have a b...
Why are variables “i” and “j” used for counters?
... k as handy subscripts for summation and matrix multiplication indices and what-not. I remember reading in an early Fortran II manual something about that. (Yes, Fortran II.)
– S.Lott
Nov 9 '10 at 19:51
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How to edit incorrect commit message in Mercurial? [duplicate]
...
This is what I always do - it is the easiest way!
– Rune Andersen
Sep 23 '12 at 21:18
1
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Getting the first character of a string with $str[0]
...
@MarcoDemaio The link now tells the what MichaelMorton says.
– Tino
Feb 20 '14 at 22:27
1
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How to mock an import
...
You can assign to sys.modules['B'] before importing A to get what you want:
test.py:
import sys
sys.modules['B'] = __import__('mock_B')
import A
print(A.B.__name__)
A.py:
import B
Note B.py does not exist, but when running test.py no error is returned and print(A.B.__name__) pr...
Are inline virtual functions really a non-sense?
...Base& rhs) { } ------In implementation of the function, you never know what lhs and rhs points to until runtime.
– Baiyan Huang
Aug 11 '10 at 23:44
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PowerShell: Setting an environment variable for a single command only
... a parameter rather than a
global (environment) variable. But if that is what you need to do you can do it this way:
$env:FOO = 'BAR'; ./myscript
The environment variable $env:FOO can be deleted later like so:
Remove-Item Env:\FOO
...
Rails: Logging the entire stack trace of an exception
...n essence, you can't use the second parameter to output additional stuff.
What you want to do is something more akin to:
begin
raise
rescue => e
logger.error e.message
logger.error e.backtrace.join("\n")
end
Depending on how you have your logging setup, it might be better to iterate thr...
