102 lines
2.5 KiB
Ruby
102 lines
2.5 KiB
Ruby
# == Schema Information
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#
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# Table name: ways
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#
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# way_id :bigint(8) not null, primary key
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# changeset_id :bigint(8) not null
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# timestamp :datetime not null
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# version :bigint(8) not null, primary key
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# visible :boolean default(TRUE), not null
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# redaction_id :integer
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#
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# Indexes
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#
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# ways_changeset_id_idx (changeset_id)
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# ways_timestamp_idx (timestamp)
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#
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# Foreign Keys
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#
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# ways_changeset_id_fkey (changeset_id => changesets.id)
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# ways_redaction_id_fkey (redaction_id => redactions.id)
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#
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class OldWay < ApplicationRecord
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include ConsistencyValidations
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self.table_name = "ways"
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# NOTE: this needs to be included after the table name changes, or
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# the queries generated by Redactable will use the wrong table name.
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include Redactable
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belongs_to :changeset
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belongs_to :redaction, :optional => true
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belongs_to :current_way, :class_name => "Way", :foreign_key => "way_id", :inverse_of => :old_ways
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has_many :old_nodes, :class_name => "OldWayNode", :query_constraints => [:way_id, :version], :inverse_of => :old_way
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has_many :old_tags, :class_name => "OldWayTag", :query_constraints => [:way_id, :version], :inverse_of => :old_way
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validates :changeset, :associated => true
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validates :timestamp, :presence => true
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validates :visible, :inclusion => [true, false]
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def self.from_way(way)
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old_way = OldWay.new
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old_way.visible = way.visible
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old_way.changeset_id = way.changeset_id
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old_way.timestamp = way.timestamp
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old_way.way_id = way.id
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old_way.version = way.version
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old_way.nds = way.nds
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old_way.tags = way.tags
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old_way
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end
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def save_with_dependencies!
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save!
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tags.each do |k, v|
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tag = OldWayTag.new
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tag.k = k
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tag.v = v
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tag.way_id = way_id
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tag.version = version
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tag.save!
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end
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sequence = 1
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nds.each do |n|
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nd = OldWayNode.new
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nd.id = [way_id, version, sequence]
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nd.node_id = n
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nd.save!
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sequence += 1
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end
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end
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def nds
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@nds ||= old_nodes.order(:sequence_id).collect(&:node_id)
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end
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def tags
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@tags ||= old_tags.to_h { |t| [t.k, t.v] }
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end
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attr_writer :nds, :tags
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# Temporary method to match interface to ways
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def way_nodes
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old_nodes
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end
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# Pretend we're not in any relations
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def containing_relation_members
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[]
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end
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# check whether this element is the latest version - that is,
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# has the same version as its "current" counterpart.
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def latest_version?
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current_way.version == version
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end
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end
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