Hi all,
Can someone explain to me in terms of ruby why this works?
Story.find_all_by_user_id(2).collect(&:link) # 1 method call
This is in ROR console. link is a property of Story. The above command
finds all db rows and all their properties (columns) with user_id == 2
and creates an array with only the link property.
This is same as:
Story.find_all_by_user_id(2).collect{|x| x.link} # 2 block
I understand function #2 with use of a block.
I do not understand function #1 in terms of syntax. What is &:link? I
know it represents a property and could accept that this is the way it
works but I want to understand this in terms of ruby syntax. Is &:link
a block? If so it would have to represent x.link. I do not understand
how this is generated in ruby.
TIA,
Pete
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