大约有 40,000 项符合查询结果（耗时：0.0445秒） [XML]
Ruby on Rails: how do I sort with two columns using ActiveRecord?
...ersonally I find it easier to manage.
SQL gets produced in one step only:
SELECT "models".* FROM "models" ORDER BY "models"."etc" ASC, "models"."bar" DESC, "models"."foo" ASC
Thusly, for the original question:
Model.order(:updated_at).order(:price)
You need not declare data type, ActiveRecord ...
Separation of business logic and data access in django
...ActivateUserForm(forms.Form):
user_id = IntegerField(widget = UsernameSelectWidget, verbose_name="Select a user to activate")
# the username select widget is not a standard Django widget, I just made it up
def clean_user_id(self):
user_id = self.cleaned_data['user_id']
...
How do I tell Git to ignore everything except a subdirectory?
...
This should be selected as the best answer.
– Bahman.A
Jun 26 '19 at 23:47
add a comment
|
...
Xcode: issue “file xxx.png is missing from working copy” at project building
...te worked for me. When I added some new images, I actually had to manually select "add" on the 2x/3x variants in the File Inspector pane as well. Weird.
– Android3000
Mar 24 '16 at 17:22
...
How to know that a string starts/ends with a specific string in jQuery?
...
var isUnavailable = $("#StatusId option:selected").text().match("^Unavailable - "); - why does this return null when the selected option is "Unavailable - Other" ?
– egmfrs
Nov 28 '19 at 11:54
...
Error on renaming database in SQL Server 2008 R2
....
To close a connection even after converting to single user mode try:
select * from master.sys.sysprocesses
where spid>50 -- don't want system sessions
and dbid = DB_ID('BOSEVIKRAM')
Look at the results and see the ID of the connection to the database in question.
Then use the command b...
How can I recover a removed file in Mercurial (if at all)?
...
from eclipse this can be done by right clicking the file Select Team-->Revert
– Emil
Oct 10 '13 at 6:43
...
How do I find files that do not contain a given string pattern?
... -l, --files-with-matches
Only the names of files containing selected lines are written
share
|
improve this answer
|
follow
|
...
How to view the contents of an Android APK file?
...It's shipped with Android Studio now.
Just go to Build/Analyze APK... then select your APK :)
share
|
improve this answer
|
follow
|
...
MongoDB mongorestore failure: locale::facet::_S_create_c_locale name not valid
...
I solved this way:
su
apt-get install locales
dpkg-reconfigure locales # select locales you want!
Now mongodb should start.
Source
share
|
improve this answer
|
follow
...