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django : using select_related and get_object_or_404 together
Is there any way of using get_object_or_404 and select_related together or any other way to achieve the result of using these two together(except from putting it in try/except)??
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Stop “developer tools access needs to take control of another process for debugging to continue” ale
...ict>
- <key>group</key>
- <string>_developer</string>
<key>shared</key>
<true/>
- <key>timeout</key>
- <integer>36000</integer>
+ <key>k-of-n</key&g...
How to select multiple files with ?
...ltiple="multiple"
and if you are using php then you will get the data in $_FILES and
use var_dump($_FILES) and see output and do processing
Now you can iterate over and do the rest
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MAMP Pro 3.05 on Mavericks updated to Yosemite - Apache does not start
...e the file “envvars” located in /Applications/MAMP/Library/bin into “_envvars”
Test Update: It works!
Works for Yosemite release too!
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What does the regular expression /_/g mean?
...
The regex matches the _ character.
The g means Global, and causes the replace call to replace all matches, not just the first one.
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ASP.NET MVC - Attaching an entity of type 'MODELNAME' failed because another entity of the same type
... only fields except entity id worked fine: var entity = context.Find(entity_id); entity.someProperty = newValue; context.Entry(entity).Property(x => x.someProperty).IsModified = true; context.SaveChanges();
– Anton Lyhin
Dec 10 '15 at 22:34
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Ruby: require vs require_relative - best practice to workaround running in both Ruby =1.
... this post.
https://github.com/appoxy/aws/blob/master/lib/awsbase/require_relative.rb
unless Kernel.respond_to?(:require_relative)
module Kernel
def require_relative(path)
require File.join(File.dirname(caller[0]), path.to_str)
end
end
end
This allows you to use require_relati...
How can I add a key/value pair to a JavaScript object?
...ush(). For more info check the docs, they have some great examples there.
_.merge (Lodash only)
The second object will overwrite or add to the base object.
undefined values are not copied.
var obj = {key1: "value1", key2: "value2"};
var obj2 = {key2:"value4", key3: "value3", key4: undefined};
_.m...
How to round a number to significant figures in Python
...t digit:
>>> from math import log10, floor
>>> def round_to_1(x):
... return round(x, -int(floor(log10(abs(x)))))
...
>>> round_to_1(0.0232)
0.02
>>> round_to_1(1234243)
1000000.0
>>> round_to_1(13)
10.0
>>> round_to_1(4)
4.0
>>> rou...
数据存储组件 · App Inventor 2 中文网
...AI伴侣的App目录，如果最终编译apk运行，则到 appinventor.ai_[账户名].[项目名] 目录下查看文件）
写入文件的参考代码如下：
生成的文件如下：
程序包 ：从应用程序包...