13 lines
882 B
Ruby
13 lines
882 B
Ruby
class Item < ActiveRecord::Base
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belongs_to :unit
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has_many :multi_media_descriptions
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belongs_to :sub_category
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# TODO: change "best selling" algorithm when get some data - currently it's only sorted by earnings
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scope :best_selling, -> (offset, limit) { where(:on_display => true).order("(list_price - current_input_price) DESC").limit(limit).offset(offset) }
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scope :best_selling_in_sub_category, -> (sub_category_id, offset, limit) { best_selling(offset, limit).where(sub_category_id: sub_category_id) }
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scope :best_selling_in_category, -> (category_id, offset, limit) { best_selling(offset, limit).joins( sub_category: [:category] ).where(["category_id = ?", category_id]) }
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scope :best_selling_in_section, -> (section_id, offset, limit) { best_selling(offset, limit).joins( sub_category: [category: [ :section ]] ).where( ["section_id = ?", section_id] ) }
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end
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