Created
April 21, 2014 22:22
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# find first | |
Person.find(:first) # returns the first object fetched by SELECT * FROM people | |
Person.find(:first, :conditions => [ "user_name = ?", user_name]) | |
Person.find(:first, :conditions => [ "user_name = :u", { :u => user_name }]) | |
Person.find(:first, :order => "created_on DESC", :offset => 5) | |
# find last | |
Person.find(:last) # returns the last object fetched by SELECT * FROM people | |
Person.find(:last, :conditions => [ "user_name = ?", user_name]) | |
Person.find(:last, :order => "created_on DESC", :offset => 5) | |
# find all | |
Person.find(:all) # returns an array of objects for all the rows fetched by SELECT * FROM people | |
Person.find(:all, :conditions => [ "category IN (?)", categories], :limit => 50) | |
Person.find(:all, :conditions => { :friends => ["Bob", "Steve", "Fred"] } | |
Person.find(:all, :offset => 10, :limit => 10) | |
Person.find(:all, :include => [ :account, :friends ]) | |
Person.find(:all, :group => "category") |
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