109 lines
2.7 KiB
Ruby
109 lines
2.7 KiB
Ruby
class OldNode < ActiveRecord::Base
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include GeoRecord
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include ConsistencyValidations
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include ObjectMetadata
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self.table_name = "nodes"
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self.primary_keys = "node_id", "version"
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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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validates_presence_of :changeset_id, :timestamp
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validates_inclusion_of :visible, :in => [ true, false ]
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validates_numericality_of :latitude, :longitude
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validate :validate_position
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validates_associated :changeset
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belongs_to :changeset
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belongs_to :redaction
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belongs_to :current_node, :class_name => "Node", :foreign_key => "node_id"
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has_many :old_tags, :class_name => 'OldNodeTag', :foreign_key => [:node_id, :version]
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def validate_position
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errors.add(:base, "Node is not in the world") unless in_world?
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end
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def self.from_node(node)
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old_node = OldNode.new
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old_node.latitude = node.latitude
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old_node.longitude = node.longitude
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old_node.visible = node.visible
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old_node.tags = node.tags
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old_node.timestamp = node.timestamp
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old_node.changeset_id = node.changeset_id
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old_node.node_id = node.id
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old_node.version = node.version
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return old_node
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end
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def to_xml
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doc = OSM::API.new.get_xml_doc
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doc.root << to_xml_node()
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return doc
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end
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def to_xml_node(changeset_cache = {}, user_display_name_cache = {})
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el = XML::Node.new 'node'
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el['id'] = self.node_id.to_s
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add_metadata_to_xml_node(el, self, changeset_cache, user_display_name_cache)
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if self.visible?
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el['lat'] = self.lat.to_s
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el['lon'] = self.lon.to_s
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end
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add_tags_to_xml_node(el, self.old_tags)
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return el
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end
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def save_with_dependencies!
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save!
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#not sure whats going on here
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clear_aggregation_cache
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clear_association_cache
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#ok from here
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@attributes.update(OldNode.where(:node_id => self.node_id, :timestamp => self.timestamp, :version => self.version).first.instance_variable_get('@attributes'))
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self.tags.each do |k,v|
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tag = OldNodeTag.new
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tag.k = k
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tag.v = v
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tag.node_id = self.node_id
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tag.version = self.version
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tag.save!
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end
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end
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def tags
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@tags ||= Hash[self.old_tags.collect { |t| [t.k, t.v] }]
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end
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def tags=(t)
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@tags = t
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end
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def tags_as_hash
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return self.tags
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end
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# Pretend we're not in any ways
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def ways
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return []
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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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return []
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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 is_latest_version?
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current_node.version == self.version
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end
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end
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