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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...
Difference between socket and websocket?
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edited May 10 '13 at 15:17
NTUI
31944 silver badges1212 bronze badges
answered...
Spring Boot application as a Service
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edited Oct 18 '19 at 18:02
Daniel
35311 silver badge1414 bronze badges
answere...
Citing the author of a blockquote using Markdown syntax
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edited Sep 4 '15 at 12:35
answered Jan 4 '10 at 20:51
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Explain the concept of a stack frame in a nutshell
... stack pointer accordingly as frames are pushed and popped off the stack.
EDIT:
There is a big difference between higher-level call stacks and the processor's call stack.
When we talk about a processor's call stack, we are talking about working with addresses and values at the byte/word level in...
Difference between local and global indexes in DynamoDB
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edited Feb 14 '15 at 21:45
Jojodmo
22.4k1212 gold badges5959 silver badges9797 bronze badges
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Setting environment variables on OS X
...l apps
# (and Terminal), including those launched via Spotlight.
#
# After editing this file run the following command from the terminal to update
# environment variables globally without needing to reboot.
# NOTE: You will still need to restart the relevant application (including
# Terminal) to pic...
How do I make an attributed string using Swift?
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edited Mar 1 '19 at 17:56
Mike Fogel
2,4902020 silver badges2020 bronze badges
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When to use os.name, sys.platform, or platform.system?
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edited Aug 30 '19 at 16:49
Brand0R
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answe...
Expand/collapse section in UITableView in iOS
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edited Apr 5 '18 at 8:55
Arya Tavakoli
1533 bronze badges
answered Dec 21 '09 ...