"find in rails" Code Answer's
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find in rails
# 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")
Source: apidock.com
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