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Rails find_or_create_by more than one attribute?
...se find_or_initialize_by if you don't want to save the record right away)
Edit: The above method is deprecated in Rails 4. The new way to do it will be:
GroupMember.where(:member_id => 4, :group_id => 7).first_or_create
and
GroupMember.where(:member_id => 4, :group_id => 7).first_or...
How to draw a rounded Rectangle on HTML Canvas?
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edited Jan 8 '18 at 1:25
Coder-256
3,24111 gold badge1515 silver badges4141 bronze badges
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Preview layout with merge root tag in Intellij IDEA/Android Studio
...for a merge tag, which will make the layout render correctly in the layout editor preview.
So using your example:
<merge xmlns:android="http://schemas.android.com/apk/res/android"
xmlns:tools="http://schemas.android.com/tools"
android:layout_width="match_parent"
android:layout_heig...
iOS application: how to clear notifications?
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edited Feb 10 '12 at 10:07
answered Feb 10 '12 at 10:02
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Check if value already exists within list of dictionaries?
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edited Jun 20 at 19:15
Aditya Shaw
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answered ...
C++ obtaining milliseconds time on Linux — clock() doesn't seem to work properly
...e following:
struct timeval {
time_t tv_sec;
suseconds_t tv_usec;
}
EDIT: As the two comments below suggest, clock_gettime(CLOCK_MONOTONIC) is a much better choice if you have it available, which should be almost everywhere these days.
EDIT: Someone else commented that you can also use moder...
How can I remove non-ASCII characters but leave periods and spaces using Python?
...OPQRSTUVWXYZ
!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~ \t\n\r\x0b\x0c
EDIT: On Python 3, filter will return an iterable. The correct way to obtain a string back would be:
''.join(filter(lambda x: x in printable, s))
s...
Byte[] to InputStream or OutputStream
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edited Oct 27 '17 at 4:12
answered Jan 19 '10 at 6:20
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How to select between brackets (or quotes or …) in Vim?
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edited May 23 '17 at 12:10
Community♦
111 silver badge
answered Jun 30 '09 a...
Align two inline-blocks left and right on same line
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Edit: 3 years has passed since I answered this question and I guess a more modern solution is needed, although the current one does the thing :)
1.Flexbox
It's by far the shortest and most flexible. Apply display: flex; to ...