大约有 40,000 项符合查询结果（耗时：0.0408秒） [XML]
Why all the Active Record hate? [closed]
...need to write raw SQL, it's easily done.
@Tim Sullivan
...and you select several instances of the model, you're basically doing a "select * from ..."
Code:
people = Person.find(:all, :select=>'name, id')
This will only select the name and ID columns from the database, all the other ...
Calculate difference between two datetimes in MySQL
...
USE TIMESTAMPDIFF MySQL function. For example, you can use:
SELECT TIMESTAMPDIFF(SECOND, '2012-06-06 13:13:55', '2012-06-06 15:20:18')
In your case, the third parameter of TIMSTAMPDIFF function would be the current login time (NOW()). Second parameter would be the last login time, w...
How can I tell IntelliJ's “Find in Files” to ignore generated files?
...for the Find
in Path dialog. (Mac users press command+shift+F)
Under Scope select Custom.
Choose a scope from the drop down list or create a Custom Scope by clicking on the ... button to the right of dropdown.
In the dialog that appears, click on the + button and select Local
On the right pane you...
Set selected index of an Android RadioGroup
Is there a way to set the selected index of a RadioGroup in android, other than looping through the child radiobuttons and selecting checking the radio button at the selected index?
...
Split a List into smaller lists of N size
...
@HaraldCoppoolse the OP didn't ask for selecting, only to split lists
– Phate01
Mar 22 '18 at 16:11
1
...
Why does installing Nokogiri on Mac OS fail with libiconv is missing?
...ed to install xCode command tools to allow you to install libiconv.
xcode-select --install
then install a newer version of libiconv
brew install libiconv
then install your gem
gem install nokogiri -- --with-iconv-dir=/usr/local/Cellar/libiconv/1.14
...
vim command to restructure/force text to 80 columns
...
And it also works with visual selections. Ie something like: V}gq. In this way you see what you are going to format before actually formatting it.
– Plouff
Dec 2 '14 at 11:09
...
CSS Input with width: 100% goes outside parent's bound
...il" class="login-field">
<label for="email" style="-moz-user-select: none;-webkit-user-select: none;" onselectstart="return false;">E-mail address</label>
<span><input name="email" id="email" type="text" /></span>
</div>
<div clas...
Filter by property
...ral models, and this routine should work for all models. And it does:
def selectByProperties(modelType, specify):
clause = "SELECT * from %s" % modelType._meta.db_table
if len(specify) > 0:
clause += " WHERE "
for field, eqvalue in specify.items():
clause += ...
Wrapping chained method calls on a separate line in Eclipse for Java
...ormatter → Edit → Line wrapping (tab)
Then, in the list at the left, select:
Function Calls → Qualified invocations
Now below this list, set Line wrapping policy to:
Wrap all elements, except first element if not necessary
Check:
Force split, even if line shorter than maximu...