has-adjacent-finders

This plugin allows you to find rows adjacent to an arbitrary row by adding the following methods to ActiveRecord models:

• find_next_row - find record to the right of current record
• find_previous_row - find record to the left of current record
• find_next_rows - find records to the right of current record
• find_previous_rows - find records to the left of current record
• find_adjacent_rows - find records to the right and left of current record
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Usage

	
class Product < ActiveRecord::Base
	has_adjacent_finders
end

@product = Product.find(1)

@product.find_next_row
@product.find_previous_row
@product.find_adjacent_rows
	

Advanced usage

	
@product = Product.find(1)

@product.find_next_row({:conditions => "category_id = #{@product.category_id}"})
@product.find_previous_row({:conditions => "category_id = #{@product.category_id}"})
@product.find_adjacent_rows({:left => 2, :right => 3}, {:conditions => "category_id = #{@product.category_id}", :order => 'id', :include => :shop})
	

Author

Christian Hellsten (Aktagon Ltd.)