impress/app/models/item.rb

850 lines
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# requires item sweeper at bottom
class Item < ActiveRecord::Base
include PrettyParam
SwfAssetType = 'object'
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has_many :closet_hangers
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has_one :contribution, :as => :contributed
has_many :parent_swf_asset_relationships, :foreign_key => 'parent_id',
:conditions => {:swf_asset_type => SwfAssetType}
has_many :swf_assets, :through => :parent_swf_asset_relationships, :source => :object_asset,
:conditions => {:type => SwfAssetType}
attr_writer :current_body_id, :owned, :wanted
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NCRarities = [0, 500]
PAINTBRUSH_SET_DESCRIPTION = 'This item is part of a deluxe paint brush set!'
SPECIAL_COLOR_DESCRIPTION_REGEX = /This item is only wearable by Neopets painted ([a-zA-Z]+)\./
SPECIAL_PAINTBRUSH_COLORS_PATH = Rails.root.join('config', 'colors_with_unique_bodies.txt')
SPECIAL_PAINTBRUSH_COLORS = File.read(SPECIAL_PAINTBRUSH_COLORS_PATH).split("\n").map { |name| Color.find_by_name(name) }
set_table_name 'objects' # Neo & PHP Impress call them objects, but the class name is a conflict (duh!)
set_inheritance_column 'inheritance_type' # PHP Impress used "type" to describe category
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cattr_reader :per_page
@@per_page = 30
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scope :alphabetize, order('name ASC')
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scope :join_swf_assets, joins("INNER JOIN #{ParentSwfAssetRelationship.table_name} psa ON psa.swf_asset_type = 'object' AND psa.parent_id = objects.id").
joins("INNER JOIN #{SwfAsset.table_name} swf_assets ON swf_assets.id = psa.swf_asset_id").
group('objects.id')
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scope :without_swf_assets, joins(
"LEFT JOIN #{ParentSwfAssetRelationship.table_name} psa ON psa.swf_asset_type = 'object' AND psa.parent_id = #{table_name}.id " +
"LEFT JOIN #{SwfAsset.table_name} sa ON sa.type = 'object' AND sa.id = psa.swf_asset_id"
).where('sa.id IS NULL')
scope :newest, order(arel_table[:created_at].desc) if arel_table[:created_at]
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scope :spidered_longest_ago, order(["(last_spidered IS NULL) DESC", "last_spidered DESC"])
scope :sold_in_mall, where(:sold_in_mall => true)
scope :not_sold_in_mall, where(:sold_in_mall => false)
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scope :sitemap, select([:id, :name]).order(:id).limit(49999)
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scope :with_closet_hangers, joins(:closet_hangers)
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def closeted?
@owned || @wanted
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end
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def nc?
NCRarities.include?(rarity_index)
end
def owned?
@owned
end
def wanted?
@wanted
end
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def restricted_zones
unless @restricted_zones
@restricted_zones = []
zones_restrict.split(//).each_with_index do |switch, id|
@restricted_zones << Zone.find(id.to_i + 1) if switch == '1'
end
end
@restricted_zones
end
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def occupied_zones
all_body_ids = []
zone_body_ids = {}
selected_assets = swf_assets.select('body_id, zone_id').each do |swf_asset|
zone_body_ids[swf_asset.zone_id] ||= []
body_ids = zone_body_ids[swf_asset.zone_id]
body_ids << swf_asset.body_id unless body_ids.include?(swf_asset.body_id)
all_body_ids << swf_asset.body_id unless all_body_ids.include?(swf_asset.body_id)
end
zones = []
total_body_ids = all_body_ids.size
zone_body_ids.each do |zone_id, body_ids|
zone = Zone.find(zone_id)
zone.sometimes = true if body_ids.size < total_body_ids
zones << zone
end
zones
end
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def affected_zones
restricted_zones + occupied_zones
end
def special_color
@special_color ||= determine_special_color
end
protected
def determine_special_color
if description.include?(PAINTBRUSH_SET_DESCRIPTION)
downcased_name = name.downcase
SPECIAL_PAINTBRUSH_COLORS.each do |color|
return color if downcased_name.include?(color.name)
end
end
match = description.match(SPECIAL_COLOR_DESCRIPTION_REGEX)
if match
return Color.find_by_name(match[1].downcase)
end
end
public
def species_support_ids
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@species_support_ids_array ||= read_attribute('species_support_ids').split(',').map(&:to_i) rescue nil
end
def species_support_ids=(replacement)
@species_support_ids_array = nil
replacement = replacement.join(',') if replacement.is_a?(Array)
write_attribute('species_support_ids', replacement)
end
def supported_species
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@supported_species ||= species_support_ids.blank? ? Species.all : species_support_ids.sort.map { |id| Species.find(id) }
end
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def self.search(query, user=nil)
raise SearchError, "Please provide a search query" unless query
query = query.strip
raise SearchError, "Search queries should be at least 3 characters" if query.length < 3
query_conditions = [Condition.new]
in_phrase = false
query.each_char do |c|
if c == ' ' && !in_phrase
query_conditions << Condition.new
elsif c == '"'
in_phrase = !in_phrase
elsif c == ':' && !in_phrase
query_conditions.last.to_filter!
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elsif c == '-' && !in_phrase && query_conditions.last.empty?
query_conditions.last.negate!
else
query_conditions.last << c
end
end
limited_filters_used = []
query_conditions.inject(self.scoped) do |scope, condition|
if condition.filter? && LimitedSearchFilters.include?(condition.filter)
if limited_filters_used.include?(condition.filter)
raise SearchError, "The #{condition.filter} filter is complex; please only use one per search. Thanks!"
else
limited_filters_used << condition.filter
end
end
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condition.narrow(scope, user)
end
end
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def as_json(options = {})
{
:description => description,
:id => id,
:name => name,
:thumbnail_url => thumbnail_url,
:zones_restrict => zones_restrict,
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:rarity_index => rarity_index,
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:owned => owned?,
:wanted => wanted?
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}
end
before_create do
self.sold_in_mall ||= false
true
end
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def handle_assets!
if @parent_swf_asset_relationships_to_update && @current_body_id
new_swf_asset_ids = @parent_swf_asset_relationships_to_update.map(&:swf_asset_id)
rels = ParentSwfAssetRelationship.arel_table
swf_assets = SwfAsset.arel_table
# If a relationship used to bind an item and asset for this body type,
# but doesn't in this sample, the two have been unbound. Delete the
# relationship.
ids_to_delete = self.parent_swf_asset_relationships.
select(:id).
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joins(:object_asset).
where(rels[:swf_asset_id].not_in(new_swf_asset_ids)).
where(swf_assets[:body_id].in([@current_body_id, 0])).
map(&:id)
unless ids_to_delete.empty?
ParentSwfAssetRelationship.
where(rels[:parent_id].eq(self.id)).
where(rels[:swf_asset_type].eq(SwfAssetType)).
where(rels[:swf_asset_id].in(ids_to_delete)).
delete_all
end
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@parent_swf_asset_relationships_to_update.each do |rel|
rel.save!
rel.swf_asset.save!
end
end
end
def origin_registry_info=(info)
# bear in mind that numbers from registries are floats
self.species_support_ids = info[:species_support].map(&:to_i)
attribute_names.each do |attribute|
value = info[attribute.to_sym]
if value
value = value.to_i if value.is_a? Float
self[attribute] = value
end
end
end
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def pending_swf_assets
@parent_swf_asset_relationships_to_update.inject([]) do |all_swf_assets, relationship|
all_swf_assets << relationship.swf_asset
end
end
def parent_swf_asset_relationships_to_update=(rels)
@parent_swf_asset_relationships_to_update = rels
end
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def self.all_by_ids_or_children(ids, swf_assets)
swf_asset_ids = []
swf_assets_by_id = {}
swf_assets_by_parent_id = {}
swf_assets.each do |swf_asset|
id = swf_asset.id
swf_assets_by_id[id] = swf_asset
swf_asset_ids << id
end
SwfAsset.select('id, parent_id').object_assets.joins(:object_asset_relationships).
where(SwfAsset.arel_table[:id].in(swf_asset_ids)).each do |row|
item_id = row.parent_id.to_i
swf_assets_by_parent_id[item_id] ||= []
swf_assets_by_parent_id[item_id] << swf_assets_by_id[row.id.to_i]
ids << item_id
end
find(ids).tap do |items|
items.each do |item|
swf_assets = swf_assets_by_parent_id[item.id]
if swf_assets
swf_assets.each do |swf_asset|
swf_asset.item = item
end
end
end
end
end
def self.collection_from_pet_type_and_registries(pet_type, info_registry, asset_registry)
# bear in mind that registries are arrays with many nil elements,
# due to how the parser works
# Collect existing items
items = {}
item_ids = []
info_registry.each do |item_id, info|
if info && info[:is_compatible]
item_ids << item_id.to_i
end
end
# Collect existing relationships
existing_relationships_by_item_id_and_swf_asset_id = {}
existing_items = Item.find_all_by_id(item_ids, :include => :parent_swf_asset_relationships)
existing_items.each do |item|
items[item.id] = item
relationships_by_swf_asset_id = {}
item.parent_swf_asset_relationships.each do |relationship|
relationships_by_swf_asset_id[relationship.swf_asset_id] = relationship
end
existing_relationships_by_item_id_and_swf_asset_id[item.id] =
relationships_by_swf_asset_id
end
# Collect existing assets
swf_asset_ids = []
asset_registry.each do |asset_id, asset_data|
swf_asset_ids << asset_id.to_i if asset_data
end
existing_swf_assets = SwfAsset.object_assets.find_all_by_id swf_asset_ids
existing_swf_assets_by_id = {}
existing_swf_assets.each do |swf_asset|
existing_swf_assets_by_id[swf_asset.id] = swf_asset
end
# With each asset in the registry,
relationships_by_item_id = {}
asset_registry.each do |asset_id, asset_data|
if asset_data
# Build and update the item
item_id = asset_data[:obj_info_id].to_i
next unless item_ids.include?(item_id) # skip incompatible (Uni Bug)
item = items[item_id]
unless item
item = Item.new
item.id = item_id
items[item_id] = item
end
item.origin_registry_info = info_registry[item.id.to_s]
item.current_body_id = pet_type.body_id
# Build and update the SWF
swf_asset_id = asset_data[:asset_id].to_i
swf_asset = existing_swf_assets_by_id[swf_asset_id]
unless swf_asset
swf_asset = SwfAsset.new
swf_asset.id = swf_asset_id
end
swf_asset.origin_object_data = asset_data
swf_asset.origin_pet_type = pet_type
# Build and update the relationship
relationship = existing_relationships_by_item_id_and_swf_asset_id[item.id][swf_asset_id] rescue nil
unless relationship
relationship = ParentSwfAssetRelationship.new
relationship.parent_id = item.id
relationship.swf_asset_type = SwfAssetType
relationship.swf_asset_id = swf_asset.id
end
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relationship.object_asset = swf_asset
relationships_by_item_id[item_id] ||= []
relationships_by_item_id[item_id] << relationship
end
end
# Set up the relationships to be updated on item save
relationships_by_item_id.each do |item_id, relationships|
items[item_id].parent_swf_asset_relationships_to_update = relationships
end
items.values
end
class << self
MALL_HOST = 'ncmall.neopets.com'
MALL_MAIN_PATH = '/mall/shop.phtml'
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MALL_CATEGORY_PATH = '/mall/ajax/load_page.phtml'
MALL_CATEGORY_QUERY = 'type=browse&cat={cat}&lang=en'
MALL_CATEGORY_TRIGGER = /load_items_pane\("browse", ([0-9]+)\);/
MALL_JSON_ITEM_DATA_KEY = 'object_data'
MALL_ITEM_URL_TEMPLATE = 'http://images.neopets.com/items/%s.gif'
MALL_MAIN_URI = Addressable::URI.new :scheme => 'http',
:host => MALL_HOST, :path => MALL_MAIN_PATH
MALL_CATEGORY_URI = Addressable::URI.new :scheme => 'http',
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:host => MALL_HOST, :path => MALL_CATEGORY_PATH,
:query => MALL_CATEGORY_QUERY
MALL_CATEGORY_TEMPLATE = Addressable::Template.new MALL_CATEGORY_URI
def spider_mall!
# Load the mall HTML, scan it for category onclicks
items = {}
spider_request(MALL_MAIN_URI).scan(MALL_CATEGORY_TRIGGER) do |match|
# Plug the category ID into the URI for that category's JSON document
uri = MALL_CATEGORY_TEMPLATE.expand :cat => match[0]
begin
# Load up that JSON and send it off to be parsed
puts "Loading #{uri}..."
category_items = spider_mall_category(spider_request(uri))
puts "...found #{category_items.size} items"
items.merge!(category_items)
rescue SpiderJSONError => e
# If there was a parsing error, add where it came from
Rails.logger.warn "Error parsing JSON at #{uri}, skipping: #{e.message}"
end
end
puts "#{items.size} items found"
all_item_ids = items.keys
# Find which of these already exist but aren't marked as sold_in_mall so
# we can update them as being sold
Item.not_sold_in_mall.where(:id => items.keys).select([:id, :name]).each do |item|
items.delete(item.id)
item.sold_in_mall = true
item.save
puts "#{item.name} (#{item.id}) now in mall, updated"
end
# Find items marked as sold_in_mall so we can skip those we just found
# if they already are properly marked, and mark those that we didn't just
# find as no longer sold_in_mall
Item.sold_in_mall.select([:id, :name]).each do |item|
if all_item_ids.include?(item.id)
items.delete(item.id)
else
item.sold_in_mall = false
item.save
puts "#{item.name} (#{item.id}) no longer in mall, removed sold_in_mall status"
end
end
puts "#{items.size} new items"
items.each do |item_id, item|
item.save
puts "Saved #{item.name} (#{item_id})"
end
items
end
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def spider_mall_assets!(limit)
items = self.select([arel_table[:id], arel_table[:name]]).sold_in_mall.spidered_longest_ago.limit(limit).all
puts "- #{items.size} items need asset spidering"
AssetStrategy.build_strategies
items.each do |item|
AssetStrategy.spider item
end
end
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def spider_request(uri)
begin
response = Net::HTTP.get_response uri
rescue SocketError => e
raise SpiderHTTPError, "Error loading #{uri}: #{e.message}"
end
unless response.is_a? Net::HTTPOK
raise SpiderHTTPError, "Error loading #{uri}: Response was a #{response.class}"
end
response.body
end
private
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class AssetStrategy
Strategies = {}
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MALL_ASSET_PATH = '/mall/ajax/get_item_assets.phtml'
MALL_ASSET_QUERY = 'pet={pet_name}&oii={item_id}'
MALL_ASSET_URI = Addressable::URI.new :scheme => 'http',
:host => MALL_HOST, :path => MALL_ASSET_PATH,
:query => MALL_ASSET_QUERY
MALL_ASSET_TEMPLATE = Addressable::Template.new MALL_ASSET_URI
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def initialize(name, options)
@name = name
@pass = options[:pass]
@complete = options[:complete]
@pet_types = options[:pet_types]
end
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def spider(item)
puts " - Using #{@name} strategy"
exit = false
@pet_types.each do |pet_type|
swf_assets = load_for_pet_type(item, pet_type)
if swf_assets
contains_body_specific_assets = false
swf_assets.each do |swf_asset|
if swf_asset.body_specific?
contains_body_specific_assets = true
break
end
end
if contains_body_specific_assets
if @pass
Strategies[@pass].spider(item) unless @pass == :exit
exit = true
break
end
else
# if all are universal, no need to spider more
puts " - No body specific assets; moving on"
exit = true
break
end
end
end
if !exit && @complete && @complete != :exit
Strategies[@complete].spider(item)
end
end
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private
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def load_for_pet_type(item, pet_type, banned_pet_ids=[])
pet_id = pet_type.pet_id
pet_name = pet_type.pet_name
pet_valid = nil
begin
pet = Pet.load(pet_name)
if pet.pet_type_id == pet_type.id
pet_valid = true
else
pet_valid = false
puts " - Pet #{pet_name} is pet type \##{pet.pet_type_id}, not \##{pet_type.id}; saving it and loading new pet"
pet.save!
end
rescue Pet::PetNotFound
pet_valid = false
puts " - Pet #{pet_name} no longer exists; destroying and loading new pet"
Pet.find_by_name(pet_name).destroy
end
if pet_valid
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swf_assets = load_for_pet_name(item, pet_type, pet_name)
if swf_assets
puts " - Modeled with #{pet_name}, saved assets (#{swf_assets.map(&:id).join(', ')})"
else
puts " - Item #{item.name} does not fit #{pet_name}"
end
return swf_assets
else
banned_pet_ids << pet_id
new_pet = pet_type.pets.select([:id, :name]).where(Pet.arel_table[:id].not_in(banned_pet_ids)).first
if new_pet
pet_type.pet_id = new_pet.id
pet_type.pet_name = new_pet.name
load_for_pet_type(item, pet_type, banned_pet_ids)
else
puts " - We have no more pets of type \##{pet_type.id}. Skipping"
return nil
end
end
end
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def load_for_pet_name(item, pet_type, pet_name)
uri = MALL_ASSET_TEMPLATE.
expand(
:item_id => item.id,
:pet_name => pet_name
)
raw_data = Item.spider_request(uri)
data = JSON.parse(raw_data)
item_id_key = item.id.to_s
if !data.empty? && data[item_id_key] && data[item_id_key]['asset_data']
data[item_id_key]['asset_data'].map do |asset_id_str, asset_data|
item.zones_restrict = asset_data['restrict']
item.save
swf_asset = SwfAsset.find_or_initialize_by_type_and_id(SwfAssetType, asset_id_str.to_i)
swf_asset.type = SwfAssetType
swf_asset.body_id = pet_type.body_id
swf_asset.mall_data = asset_data
item.swf_assets << swf_asset unless item.swf_assets.include? swf_asset
swf_asset.save
swf_asset
end
else
nil
end
end
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class << self
def add_strategy(name, options)
Strategies[name] = new(name, options)
end
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def add_cascading_strategy(name, options)
pet_type_groups = options[:pet_types]
pet_type_group_names = pet_type_groups.keys
pet_type_group_names.each_with_index do |pet_type_group_name, i|
remaining_pet_types = pet_type_groups[pet_type_group_name]
first_pet_type = [remaining_pet_types.slice!(0)]
cascade_name = "#{name}_cascade"
next_name = pet_type_group_names[i + 1]
next_name = next_name ? "group_#{next_name}" : options[:complete]
first_strategy_options = {:complete => next_name, :pass => :exit,
:pet_types => first_pet_type}
unless remaining_pet_types.empty?
first_strategy_options[:pass] = cascade_name
add_strategy cascade_name, :complete => :exit,
:pet_types => remaining_pet_types
end
add_strategy name, first_strategy_options
name = next_name
end
end
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def spider(item)
puts "- Spidering for #{item.name}"
Strategies[:start].spider(item)
item.last_spidered = Time.now
item.save
puts "- #{item.name} done spidering, saved last spidered timestamp"
end
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def build_strategies
if Strategies.empty?
pet_type_t = PetType.arel_table
require 'pet' # FIXME: console is whining when i don't do this
pet_t = Pet.arel_table
pet_types = PetType.select([pet_type_t[:id], pet_type_t[:body_id], "#{Pet.table_name}.id as pet_id, #{Pet.table_name}.name as pet_name"]).
joins(:pets).group(pet_type_t[:id])
remaining_standard_pet_types = pet_types.single_standard_color.order(:species_id)
first_standard_pet_type = [remaining_standard_pet_types.slice!(0)]
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add_strategy :start, :pass => :remaining_standard, :complete => :first_nonstandard_color,
:pet_types => first_standard_pet_type
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add_strategy :remaining_standard, :complete => :exit,
:pet_types => remaining_standard_pet_types
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add_cascading_strategy :first_nonstandard_color, :complete => :remaining_standard,
:pet_types => pet_types.select(pet_type_t[:color_id]).nonstandard_colors.all.group_by(&:color_id)
end
end
end
end
def spider_mall_category(json)
begin
items_data = JSON.parse(json)[MALL_JSON_ITEM_DATA_KEY]
unless items_data
raise SpiderJSONError, "Missing key #{MALL_JSON_ITEM_DATA_KEY}"
end
rescue Exception => e
# Catch both errors parsing JSON and the missing key
raise SpiderJSONError, e.message
end
items = {}
items_data.each do |item_id, item_data|
if item_data['isWearable'] == 1
relevant_item_data = item_data.slice('name', 'description', 'price')
item = Item.new relevant_item_data
item.id = item_data['id']
item.thumbnail_url = sprintf(MALL_ITEM_URL_TEMPLATE, item_data['imageFile'])
item.sold_in_mall = true
items[item.id] = item
end
end
items
end
class SpiderError < RuntimeError;end
class SpiderHTTPError < SpiderError;end
class SpiderJSONError < SpiderError;end
end
private
SearchFilterScopes = []
LimitedSearchFilters = []
def self.search_filter(name, options={}, &block)
assume_complement = options.delete(:assume_complement) || true
name = name.to_s
SearchFilterScopes << name
LimitedSearchFilters << name if options[:limit]
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(class << self; self; end).instance_eval do
if options[:full]
define_method "search_filter_#{name}", &options[:full]
else
if assume_complement
define_method "search_filter_not_#{name}", &Item.search_filter_block(options, false, &block)
end
define_method "search_filter_#{name}", &Item.search_filter_block(options, true, &block)
end
end
end
def self.single_search_filter(name, options={}, &block)
options[:assume_complement] = false
search_filter name, options, &block
end
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def self.search_filter_block(options, positive, &block)
Proc.new { |str, user, scope|
condition = block.arity == 1 ? block.call(str) : block.call(str, user)
unless positive
condition = condition.to_sql if condition.respond_to?(:to_sql)
condition = "!(#{condition})"
end
scope = scope.send(options[:scope]) if options[:scope]
scope.where(condition)
}
end
search_filter :name do |name|
arel_table[:name].matches("%#{name}%")
end
search_filter :description do |description|
arel_table[:description].matches("%#{description}%")
end
def self.adjective_filters
@adjective_filters ||= {
'nc' => arel_table[:rarity_index].in(NCRarities),
'pb' => arel_table[:description].eq(PAINTBRUSH_SET_DESCRIPTION)
}
end
search_filter :is do |adjective|
filter = adjective_filters[adjective]
unless filter
raise SearchError,
"We don't know how an item can be \"#{adjective}\". " +
"Did you mean is:nc or is:pb?"
end
filter
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end
USER_ADJECTIVES = {
'own' => true,
'owns' => true,
'owned' => true,
'want' => false,
'wants' => false,
'wanted' => false,
'all' => nil,
'items' => nil
}
def self.parse_user_adjective(adjective, user)
unless USER_ADJECTIVES.has_key?(adjective)
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raise SearchError, "We don't understand user:#{adjective}. " +
"Find items you own with user:owns, items you want with user:wants, or " +
"both with user:all"
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end
unless user
raise SearchError, "It looks like you're not logged in, so you don't own any items."
end
USER_ADJECTIVES[adjective]
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end
search_filter :user do |adjective, user|
# Though joins may seem more efficient here for the positive case, we need
# to be able to handle cases like "user:owns user:wants", which breaks on
# the JOIN approach. Just have to look up the IDs in advance.
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owned_value = parse_user_adjective(adjective, user)
hangers = ClosetHanger.arel_table
items = user.closeted_items
items = items.where(ClosetHanger.arel_table[:owned].eq(owned_value)) unless owned_value.nil?
item_ids = items.map(&:id)
# Though it's best to do arel_table[:id].in(item_ids), it breaks in this
# version of Arel, and other conditions will overwrite this one. Since IDs
# are guaranteed to be integers, let's just build our own string condition
# and be done with it.
if item_ids.empty?
raise SearchError, "You don't #{ClosetHanger.verb :you, owned_value} " +
"any items yet. Head to Your Items to add some!"
end
"id IN (#{item_ids.join(',')})"
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end
search_filter :only do |species_name|
begin
id = Species.require_by_name(species_name).id
rescue Species::NotFound => e
raise SearchError, e.message
end
arel_table[:species_support_ids].eq(id.to_s)
end
search_filter :species do |species_name|
begin
id = Species.require_by_name(species_name).id
rescue Species::NotFound => e
raise SearchError, e.message
end
ids = arel_table[:species_support_ids]
ids.eq('').or(ids.matches_any([
id,
"#{id},%",
"%,#{id},%",
"%,#{id}"
]))
end
single_search_filter :type, {:limit => true, :scope => :join_swf_assets} do |zone_set_name|
zone_set = Zone::ItemZoneSets[zone_set_name]
raise SearchError, "Type \"#{zone_set_name}\" does not exist" unless zone_set
SwfAsset.arel_table[:zone_id].in(zone_set.map(&:id))
end
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single_search_filter :not_type, :full => lambda { |zone_set_name, user, scope|
zone_set = Zone::ItemZoneSets[zone_set_name]
raise SearchError, "Type \"#{zone_set_name}\" does not exist" unless zone_set
psa = ParentSwfAssetRelationship.arel_table.alias
sa = SwfAsset.arel_table.alias
# Join to SWF assets, including the zone condition in the join so that
# SWFs that don't match end up being NULL rows. Then we take the max SWF
# asset ID, which is NULL if and only if there are no rows that matched
# the zone requirement. If that max was NULL, return the object.
item_ids = select(arel_table[:id]).joins(
"LEFT JOIN #{ParentSwfAssetRelationship.table_name} #{psa.name} ON " +
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psa[:swf_asset_type].eq(SwfAssetType).
and(psa[:parent_id].eq(arel_table[:id])).
to_sql
).
joins(
"LEFT JOIN #{SwfAsset.table_name} #{sa.name} ON " +
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sa[:type].eq(SwfAssetType).
and(sa[:id].eq(psa[:swf_asset_id])).
and(sa[:zone_id].in(zone_set.map(&:id))).
to_sql
).
group("#{table_name}.id").
having("MAX(#{sa.name}.id) IS NULL"). # SwfAsset.arel_table[:id].maximum has no #eq
map(&:id)
scope.where(arel_table[:id].in(item_ids))
}
class Condition < String
attr_accessor :filter
def initialize
@positive = true
end
def filter?
!@filter.nil?
end
def to_filter!
@filter = self.clone
self.replace ''
end
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def negate!
@positive = !@positive
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end
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def narrow(scope, user)
if SearchFilterScopes.include?(filter)
polarized_filter = @positive ? filter : "not_#{filter}"
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Item.send("search_filter_#{polarized_filter}", self, user, scope)
else
raise SearchError, "Filter #{filter} does not exist"
end
end
def filter
@filter || 'name'
end
def inspect
@filter ? "#{@filter}:#{super}" : super
end
end
class SearchError < ArgumentError;end
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end
require 'item_sweeper'