大约有 1,800 项符合查询结果（耗时：0.0208秒） [XML]
Django queries - id vs pk
...ed to use a variable named pk. I prefer using something more verbose, like user_id instead of pk.
Following the same convention is preferable across the whole project. In your case id is a parameter name, not a property, so there is almost no difference in timings. Parameter names do not clash with...
How to check status of PostgreSQL server Mac OS X
...
The simplest way to to check running processes:
ps auxwww | grep postgres
And look for a command that looks something like this (your version may not be 8.3):
/Library/PostgreSQL/8.3/bin/postgres -D /Library/PostgreSQL/8.3/data
To start the server, execute something l...
heroku - how to see all the logs
...
heroku logs --source app -t
Or see only the router logs
heroku logs --ps router
Or chain them together
heroku logs --source app --ps worker
So good..
share
|
improve this answer
...
OSX - How to auto Close Terminal window after the “exit” command executed.
...rl. I'd say it's a case of PEBBAF (Problem exist between brain and fingertips).
– holygeek
Apr 7 '11 at 2:05
kill/kill...
How to check if a model has a certain column/attribute?
...s checking my models for ones that had a user, but had to instead look for user_id since some models delegated user.
– MattyB
Jul 22 '15 at 16:16
...
How can I get the current user's username in Bash?
...e I've used on Solaris 9 and Linux and which works fine for both of them:
ps -o user= -p $$ | awk '{print $1}'
This snippet prints the name of the user with the current EUID.
NOTE: you need Bash as the interpreter here.
On Solaris you have problems with methods, described above:
id does not a...
How to change the output color of echo in Linux
...ption:
If you are going to use these codes in your special bash variables
PS0
PS1
PS2 (= this is for prompting)
PS4
you should add extra escape characters so that bash can interpret them correctly. Without this adding extra escape characters it works but you will face problems when you use Ctrl + ...
How do I drop a MongoDB database from the command line?
...abase()"
More info on scripting the shell from the command line here: https://docs.mongodb.com/manual/tutorial/write-scripts-for-the-mongo-shell/#scripting
share
|
improve this answer
|
...
Rails has_many with alias name
...
Give this a shot:
has_many :jobs, foreign_key: "user_id", class_name: "Task"
Note, that :as is used for polymorphic associations.
share
|
improve this answer
|...
Rails server says port already used, how to kill that process?
... running debugger in RubyMine and it crashes or something... The server stops but the debugger continues... Anyway, this is the solution I used and it works perfectly :)
– J Smith
Jun 22 '15 at 12:24
...