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module Taxonomix
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def self.included(base)
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base.send :include, InstanceMethods
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base.class_eval do
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@taxonomy_join_table = "taxable_taxonomies"
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@primary_key = "taxable_id"
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has_many @taxonomy_join_table, :dependent => :destroy, :as => :taxable
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has_many :locations, :through => @taxonomy_join_table, :source => :taxonomy, :class_name => 'Location'
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has_many :organizations, :through => @taxonomy_join_table, :source => :taxonomy, :class_name => 'Organization'
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after_initialize :set_current_taxonomy
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scoped_search :in => :locations, :on => :name, :rename => :location, :complete_value => true
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scoped_search :in => :organizations, :on => :name, :rename => :organization, :complete_value => true
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def self.with_taxonomy_scope
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scope = block_given? ? yield : where(1)
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scope = scope.joins(taxonomy_join_condition 'loc1').where("loc1.taxonomy_id in (?)", Location.current.id) if SETTINGS[:locations_enabled] and Location.current
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scope = scope.joins(taxonomy_join_condition 'org1').where("org1.taxonomy_id in (?)", Organization.current.id) if SETTINGS[:organizations_enabled] and Organization.current
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scope
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end
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def self.taxonomy_join_condition name
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" INNER JOIN #{@taxonomy_join_table} #{name} ON #{name}.#{@primary_key} = #{self.table_name}.id and #{name}.taxable_type = '#{self.to_s}'"
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end
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end
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end
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module InstanceMethods
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def set_current_taxonomy
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if self.new_record? && self.errors.empty?
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self.locations << Location.current if Taxonomy.locations_enabled and Location.current
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self.organizations << Organization.current if Taxonomy.organizations_enabled and Organization.current
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end
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end
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end
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end
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