129 lines
3.6 KiB
Ruby
129 lines
3.6 KiB
Ruby
class Item < ActiveRecord::Base
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include SwfAssetParent
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SwfAssetType = 'object'
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set_table_name 'objects' # Neo & PHP Impress call them objects, but the class name is a conflict (duh!)
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set_inheritance_column 'inheritance_type' # PHP Impress used "type" to describe category
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cattr_reader :per_page
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@@per_page = 30
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scope :alphabetize, order('name ASC')
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scope :join_swf_assets, joins('INNER JOIN parents_swf_assets psa ON psa.swf_asset_type = "object" AND psa.parent_id = objects.id').
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joins('INNER JOIN swf_assets ON swf_assets.id = psa.swf_asset_id').
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group('objects.id')
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# Not defining validations, since this app is currently read-only
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def species_support_ids
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@species_support_ids_array ||= read_attribute('species_support_ids').split(',').map(&:to_i)
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end
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def species_support_ids=(replacement)
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@species_support_ids_array = nil
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replacement = replacement.join(',') if replacement.is_a?(Array)
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write_attribute('species_support_ids', replacement)
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end
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def supported_species
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@supported_species ||= species_support_ids.empty? ? Species.all : species_support_ids.sort.map { |id| Species.find(id) }
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end
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def self.search(query)
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raise ArgumentError, "Please provide a search query" unless query
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query = query.strip
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raise ArgumentError, "Search queries should be at least 3 characters" if query.length < 3
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query_conditions = [Condition.new]
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in_phrase = false
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query.each_char do |c|
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if c == ' ' && !in_phrase
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query_conditions << Condition.new
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elsif c == '"'
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in_phrase = !in_phrase
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elsif c == ':' && !in_phrase
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query_conditions.last.to_filter!
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elsif c == '-' && !in_phrase && query_conditions.last.empty?
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query_conditions.last.negate!
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else
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query_conditions.last << c
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end
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end
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query_conditions.inject(self.scoped) do |scope, condition|
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condition.narrow(scope)
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end
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end
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private
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SearchFilterScopes = []
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def self.search_filter(name, args={})
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SearchFilterScopes << name.to_s
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scope "search_filter_#{name}", lambda { |str, negative|
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condition = yield(str)
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condition = condition.not if negative
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rel = where(condition)
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rel = rel & args[:scope] if args[:scope]
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rel
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}
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end
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search_filter :name do |name|
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arel_table[:name].matches("%#{name}%")
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end
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search_filter :description do |description|
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arel_table[:description].matches("%#{description}%")
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end
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search_filter :only do |species_name|
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id = Species.require_by_name(species_name).id
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arel_table[:species_support_ids].eq(id.to_s)
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end
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search_filter :species do |species_name|
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id = Species.require_by_name(species_name).id
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ids = arel_table[:species_support_ids]
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ids.eq('').or(ids.matches_any(
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id,
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"#{id},%",
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"%,#{id},%",
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"%,#{id}"
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))
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end
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search_filter :type, {:scope => join_swf_assets} do |zone_set_name|
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zone_set = Zone::ItemZoneSets[zone_set_name]
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raise ArgumentError, "Type \"#{zone_set_name}\" does not exist" unless zone_set
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SwfAsset.arel_table[:zone_id].in(zone_set.map(&:id))
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end
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class Condition < String
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def to_filter!
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@filter = self.clone
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self.replace ''
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end
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def negate!
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@negative = true
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end
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def narrow(scope)
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if SearchFilterScopes.include?(filter)
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scope & Item.send("search_filter_#{filter}", self, @negative)
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else
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raise ArgumentError, "Filter #{filter} does not exist"
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end
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end
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def filter
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@filter || 'name'
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end
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def inspect
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@filter ? "#{@filter}:#{super}" : super
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end
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end
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end
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