Class: Solis::Model
- Inherits:
-
Object
- Object
- Solis::Model
- Defined in:
- lib/solis/model.rb
Class Method Summary collapse
-
.batch_exists?(sparql, entities) ⇒ Boolean
Check existence of multiple entities in a single SPARQL query Returns a Set of graph_ids that exist.
-
.batch_save(entities, validate_dependencies: true, batch_size: 100) ⇒ Array<Solis::Model>
Save multiple entities in a single SPARQL INSERT operation.
- .construct(level = 0) ⇒ Object
- .graph ⇒ Object
- .graph=(graph) ⇒ Object
- .graph_name ⇒ Object
- .graph_name=(graph_name) ⇒ Object
- .graph_prefix ⇒ Object
- .graph_prefix=(graph_prefix) ⇒ Object
- .language ⇒ Object
- .language=(language) ⇒ Object
- .make_id_for(model) ⇒ Object
- .metadata ⇒ Object
- .metadata=(m) ⇒ Object
- .model(level = 0) ⇒ Object
- .model_after_create(&blk) ⇒ Object
- .model_after_delete(&blk) ⇒ Object
- .model_after_read(&blk) ⇒ Object
- .model_after_update(&blk) ⇒ Object
- .model_before_create(&blk) ⇒ Object
- .model_before_delete(&blk) ⇒ Object
- .model_before_read(&blk) ⇒ Object
- .model_before_update(&blk) ⇒ Object
- .model_template(level = 0) ⇒ Object
- .shapes ⇒ Object
- .shapes=(s) ⇒ Object
- .sparql_endpoint ⇒ Object
- .sparql_endpoint=(sparql_endpoint) ⇒ Object
Instance Method Summary collapse
- #destroy ⇒ Object
- #dump(format = :ttl, resolve_all = true) ⇒ Object
- #exists?(sparql) ⇒ Boolean
- #graph_id ⇒ Object
-
#initialize(attributes = {}) ⇒ Model
constructor
A new instance of Model.
- #is_referenced?(sparql) ⇒ Boolean
-
#model_class_name(plural = false) ⇒ Object
Removed the ‘name’ instance method to avoid conflicts with ‘name’ attributes Use model_class_name instead, or access @model_name directly.
- #query ⇒ Object
- #save(validate_dependencies = true, top_level = true) ⇒ Object
- #to_graph(resolve_all = true) ⇒ Object
- #to_ttl(resolve_all = true) ⇒ Object
-
#update(data, validate_dependencies = true, top_level = true, sparql_client = nil, patch: false, prefetched_original: nil) ⇒ Object
Update an entity.
- #valid? ⇒ Boolean
Constructor Details
#initialize(attributes = {}) ⇒ Model
Returns a new instance of Model.
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# File 'lib/solis/model.rb', line 12 def initialize(attributes = {}) @model_name = self.class.name @model_plural_name = @model_name.pluralize @language = Graphiti.context[:object]&.language || Solis::Options.instance.get[:language] || 'en' raise "Please look at /#{@model_name.tableize}/model for structure to supply" if attributes.nil? attributes.each do |attribute, value| if self.class.[:attributes].keys.include?(attribute.to_s) if !self.class.[:attributes][attribute.to_s][:node_kind].nil? && !(value.is_a?(Hash) || value.is_a?(Array) || value.class.ancestors.include?(Solis::Model)) raise Solis::Error::InvalidAttributeError, "'#{@model_name}.#{attribute}' must be an object" end if self.class.[:attributes][attribute.to_s][:node_kind].is_a?(RDF::URI) && value.is_a?(Hash) inner_class = self.class.[:attributes][attribute.to_s][:datatype].to_s inner_model = self.class.graph.shape_as_model(inner_class) if value.key?('id') && value['id'].match?(self.class.graph_name) inner_class = value['id'].gsub(self.class.graph_name, '').split('/').first.classify.to_s if inner_model.descendants.map(&:to_s).include?(inner_class) inner_model = self.class.graph.shape_as_model(inner_class) end end value = inner_model.new(value) elsif self.class.[:attributes][attribute.to_s][:node_kind].is_a?(RDF::URI) && value.is_a?(Array) new_value = [] value.each do |v| if v.is_a?(Hash) inner_model = self.class.graph.shape_as_model(self.class.[:attributes][attribute.to_s][:datatype].to_s) new_value << inner_model.new(v) else new_value << v end end value = new_value end # switched off. currently language query parameters returns the value # value = { # "@language" => @language, # "@value" => value # } if self.class.metadata[:attributes][attribute.to_s][:datatype_rdf].eql?('http://www.w3.org/1999/02/22-rdf-syntax-ns#langString') value = value.first if value.is_a?(Array) && (attribute.eql?('id') || attribute.eql?(:id)) instance_variable_set("@#{attribute}", value) else raise Solis::Error::InvalidAttributeError, "'#{attribute}' is not part of the definition of #{@model_name}" end end self.class.make_id_for(self) rescue StandardError => e Solis::LOGGER.error(e.) raise Solis::Error::GeneralError, "Unable to create entity #{@model_name}" end |
Class Method Details
.batch_exists?(sparql, entities) ⇒ Boolean
Check existence of multiple entities in a single SPARQL query Returns a Set of graph_ids that exist
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# File 'lib/solis/model.rb', line 471 def self.batch_exists?(sparql, entities) return Set.new if entities.empty? return Set.new([entities.first.graph_id]) if entities.size == 1 && entities.first.exists?(sparql) return Set.new if entities.size == 1 values = entities.map { |e| "<#{e.graph_id}>" }.join(' ') query = "SELECT DISTINCT ?s WHERE { VALUES ?s { #{values} } . ?s ?p ?o }" results = sparql.query(query) Set.new(results.map { |r| r[:s].to_s }) end |
.batch_save(entities, validate_dependencies: true, batch_size: 100) ⇒ Array<Solis::Model>
Save multiple entities in a single SPARQL INSERT operation. Entities that already exist are updated individually.
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# File 'lib/solis/model.rb', line 419 def self.batch_save(entities, validate_dependencies: true, batch_size: 100) raise "I need a SPARQL endpoint" if sparql_endpoint.nil? return [] if entities.empty? sparql = SPARQL::Client.new(sparql_endpoint) # Batch check existence of all entities existing_ids = batch_exists?(sparql, entities) to_create = [] to_update = [] entities.each do |entity| if existing_ids.include?(entity.graph_id) to_update << entity else to_create << entity end end # Batch insert: combine new entity graphs into single INSERT DATA operations unless to_create.empty? to_create.each_slice(batch_size) do |batch| combined_graph = RDF::Graph.new combined_graph.name = RDF::URI(graph_name) visited = Set.new batch.each do |entity| entity.before_create_proc&.call(entity) entity.send(:serialize_entity, combined_graph, entity, true, visited, []) end sparql.insert_data(combined_graph, graph: combined_graph.name) batch.each { |entity| entity.after_create_proc&.call(entity) } end # Invalidate cache once for the entity type Solis::Query.invalidate_cache_for(name) end # Updates still processed individually (DELETE/INSERT requires per-entity WHERE) to_update.each do |entity| data = entity.send(:properties_to_hash, entity) entity.update(data, validate_dependencies, true, sparql) end entities end |
.construct(level = 0) ⇒ Object
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# File 'lib/solis/model.rb', line 593 def self.construct(level = 0) raise 'to be implemented' end |
.graph ⇒ Object
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# File 'lib/solis/model.rb', line 539 def self.graph @graph end |
.graph=(graph) ⇒ Object
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# File 'lib/solis/model.rb', line 543 def self.graph=(graph) @graph = graph end |
.graph_name ⇒ Object
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# File 'lib/solis/model.rb', line 515 def self.graph_name @graph_name end |
.graph_name=(graph_name) ⇒ Object
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# File 'lib/solis/model.rb', line 519 def self.graph_name=(graph_name) @graph_name = graph_name end |
.graph_prefix ⇒ Object
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# File 'lib/solis/model.rb', line 527 def self.graph_prefix @graph_prefix end |
.graph_prefix=(graph_prefix) ⇒ Object
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# File 'lib/solis/model.rb', line 523 def self.graph_prefix=(graph_prefix) @graph_prefix = graph_prefix end |
.language ⇒ Object
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# File 'lib/solis/model.rb', line 547 def self.language Graphiti.context[:object]&.language || Solis::Options.instance.get[:language] || @language || 'en' end |
.language=(language) ⇒ Object
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# File 'lib/solis/model.rb', line 551 def self.language=(language) @language = language end |
.make_id_for(model) ⇒ Object
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# File 'lib/solis/model.rb', line 482 def self.make_id_for(model) id = model.instance_variable_get("@id") if id.nil? || (id.is_a?(String) && id&.empty?) id = SecureRandom.uuid LOGGER.info("ID(#{id}) generated for #{self.name}") if ConfigFile[:debug] model.instance_variable_set("@id", id) elsif id.to_s =~ /^https?:\/\// id = id.to_s.split('/').last LOGGER.info("ID(#{id}) normalised for #{self.name}") if ConfigFile[:debug] model.instance_variable_set("@id", id) end model rescue StandardError => e Solis::LOGGER.error(e.) raise Solis::Error::GeneralError, "Error generating id for #{self.name}" end |
.metadata ⇒ Object
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# File 'lib/solis/model.rb', line 499 def self. @metadata end |
.metadata=(m) ⇒ Object
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# File 'lib/solis/model.rb', line 503 def self.(m) @metadata = m end |
.model(level = 0) ⇒ Object
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# File 'lib/solis/model.rb', line 555 def self.model(level = 0) m = { type: self.name.tableize, attributes: [] } self.[:attributes].each do |attribute, | if .key?(:class) && ![:class].nil? && [:class].value =~ /#{self.graph_name}/ && level == 0 cm = self.graph.shape_as_model(self.[:attributes][attribute][:datatype].to_s).model(level + 1) end attribute_data = { name: attribute, data_type: [:datatype], mandatory: ([:mincount].to_i > 0), repeatable: ([:maxcount].to_i > 1 || [:maxcount].nil?), description: [:comment]&.value } attribute_data[:order] = [:order]&.value.to_i if .key?(:order) && ![:order].nil? attribute_data[:group] = [:group]&.value.gsub(graph_name,'').gsub(/Group$/,'') if .key?(:group) && ![:group].nil? attribute_data[:attributes] = cm[:attributes] if cm && cm[:attributes] m[:attributes] << attribute_data end m end |
.model_after_create(&blk) ⇒ Object
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# File 'lib/solis/model.rb', line 609 def self.model_after_create(&blk) self.after_create_proc = blk end |
.model_after_delete(&blk) ⇒ Object
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# File 'lib/solis/model.rb', line 625 def self.model_after_delete(&blk) self.after_delete_proc = blk end |
.model_after_read(&blk) ⇒ Object
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# File 'lib/solis/model.rb', line 601 def self.model_after_read(&blk) self.after_read_proc = blk end |
.model_after_update(&blk) ⇒ Object
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# File 'lib/solis/model.rb', line 617 def self.model_after_update(&blk) self.after_update_proc = blk end |
.model_before_create(&blk) ⇒ Object
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# File 'lib/solis/model.rb', line 605 def self.model_before_create(&blk) self.before_create_proc = blk end |
.model_before_delete(&blk) ⇒ Object
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# File 'lib/solis/model.rb', line 621 def self.model_before_delete(&blk) self.before_delete_proc = blk end |
.model_before_read(&blk) ⇒ Object
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# File 'lib/solis/model.rb', line 597 def self.model_before_read(&blk) self.before_read_proc = blk end |
.model_before_update(&blk) ⇒ Object
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# File 'lib/solis/model.rb', line 613 def self.model_before_update(&blk) self.before_update_proc = blk end |
.model_template(level = 0) ⇒ Object
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# File 'lib/solis/model.rb', line 578 def self.model_template(level = 0) m = { type: self.name.tableize, attributes: {} } self.[:attributes].each do |attribute, | if .key?(:class) && ![:class].nil? && [:class].value =~ /#{self.graph_name}/ && level == 0 cm = self.graph.shape_as_model(self.[:attributes][attribute][:datatype].to_s).model_template(level + 1) m[:attributes][attribute.to_sym] = cm[:attributes] else m[:attributes][attribute.to_sym] = '' end end m end |
.shapes ⇒ Object
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# File 'lib/solis/model.rb', line 511 def self.shapes @shapes end |
.shapes=(s) ⇒ Object
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# File 'lib/solis/model.rb', line 507 def self.shapes=(s) @shapes = s end |
.sparql_endpoint ⇒ Object
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# File 'lib/solis/model.rb', line 531 def self.sparql_endpoint @sparql_endpoint end |
.sparql_endpoint=(sparql_endpoint) ⇒ Object
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# File 'lib/solis/model.rb', line 535 def self.sparql_endpoint=(sparql_endpoint) @sparql_endpoint = sparql_endpoint end |
Instance Method Details
#destroy ⇒ Object
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# File 'lib/solis/model.rb', line 118 def destroy raise "I need a SPARQL endpoint" if self.class.sparql_endpoint.nil? sparql = Solis::Store::Sparql::Client.new(self.class.sparql_endpoint) raise Solis::Error::QueryError, "#{self.id} is still referenced, refusing to delete" if is_referenced?(sparql) before_delete_proc&.call(self) query = %( with <#{self.class.graph_name}> delete {?s ?p ?o} where { values ?s {<#{self.graph_id}>} ?s ?p ?o } ) result = sparql.query(query) if result.count > 0 if result.first.bound?(result.variable_names.first) && result.first[result.variable_names.first].value =~ /done$/ after_delete_proc&.call(self) else after_delete_proc&.call(result) end end # Invalidate cached queries for this entity type Solis::Query.invalidate_cache_for(self.class.name) result end |
#dump(format = :ttl, resolve_all = true) ⇒ Object
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# File 'lib/solis/model.rb', line 94 def dump(format = :ttl, resolve_all = true) graph = as_graph(self, deep: resolve_all) graph.dump(format) end |
#exists?(sparql) ⇒ Boolean
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# File 'lib/solis/model.rb', line 409 def exists?(sparql) sparql.query("ASK WHERE { <#{self.graph_id}> ?p ?o }") end |
#graph_id ⇒ Object
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# File 'lib/solis/model.rb', line 401 def graph_id "#{self.class.graph_name}#{tableized_class_name(self)}/#{self.id}" end |
#is_referenced?(sparql) ⇒ Boolean
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# File 'lib/solis/model.rb', line 405 def is_referenced?(sparql) sparql.query("ASK WHERE { ?s ?p <#{self.graph_id}>. filter (!contains(str(?s), 'audit') && !contains(str(?p), 'audit'))}") end |
#model_class_name(plural = false) ⇒ Object
Removed the ‘name’ instance method to avoid conflicts with ‘name’ attributes Use model_class_name instead, or access @model_name directly
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# File 'lib/solis/model.rb', line 72 def model_class_name(plural = false) if plural @model_plural_name else @model_name end end |
#query ⇒ Object
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# File 'lib/solis/model.rb', line 80 def query raise "I need a SPARQL endpoint" if self.class.sparql_endpoint.nil? # before_read_proc&.call(self) result = Solis::Query.new(self) # after_read_proc&.call(result) result end |
#save(validate_dependencies = true, top_level = true) ⇒ Object
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# File 'lib/solis/model.rb', line 149 def save(validate_dependencies = true, top_level = true) raise "I need a SPARQL endpoint" if self.class.sparql_endpoint.nil? sparql = SPARQL::Client.new(self.class.sparql_endpoint) before_create_proc&.call(self) if self.exists?(sparql) data = properties_to_hash(self) result = update(data, validate_dependencies, top_level, sparql) else readonly_list = (Solis::Options.instance.get[:embedded_readonly] || []).map(&:to_s) # Enumerate the whole in-memory tree: self plus every embedded descendant. all_entities = collect_known_entities(self).values existing_ids = self.class.batch_exists?(sparql, all_entities) # Classify each entity: new (insert), existing embedded (update), or readonly. # readonly only protects EMBEDDED entities; the entity being saved (self) is # always created even when its class is a code table. new_entities = [] = [] all_entities.each do |entity| entity_exists = existing_ids.include?(entity.graph_id) if !entity.equal?(self) && readonly_entity?(entity, readonly_list) Solis::LOGGER.warn("#{entity.class.name} (id: #{entity.id}) is readonly but does not exist in database. Skipping.") unless entity_exists elsif entity_exists << entity else new_entities << entity end end # Existing embedded entities are updated individually (each needs DELETE/INSERT). unless .empty? = batch_load_originals() .each do || .update(properties_to_hash(), validate_dependencies, false, nil, prefetched_original: [.id]) end end # Serialize self and every new embedded entity into one INSERT DATA operation. graph = RDF::Graph.new graph.name = RDF::URI(self.class.graph_name) visited = Set.new new_entities.each { |entity| serialize_entity(graph, entity, false, visited, []) } validate_graph(graph) if validate_dependencies Solis::LOGGER.info SPARQL::Client::Update::InsertData.new(graph, graph: graph.name).to_s if ConfigFile[:debug] result = sparql.insert_data(graph, graph: graph.name) end # Invalidate cached queries for this entity type Solis::Query.invalidate_cache_for(self.class.name) after_create_proc&.call(self) self rescue StandardError => e Solis::LOGGER.error e. raise e end |
#to_graph(resolve_all = true) ⇒ Object
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# File 'lib/solis/model.rb', line 99 def to_graph(resolve_all = true) as_graph(self, deep: resolve_all) end |
#to_ttl(resolve_all = true) ⇒ Object
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# File 'lib/solis/model.rb', line 89 def to_ttl(resolve_all = true) graph = as_graph(self, deep: resolve_all) graph.dump(:ttl) end |
#update(data, validate_dependencies = true, top_level = true, sparql_client = nil, patch: false, prefetched_original: nil) ⇒ Object
Update an entity.
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# File 'lib/solis/model.rb', line 228 def update(data, validate_dependencies = true, top_level = true, sparql_client = nil, patch: false, prefetched_original: nil) raise Solis::Error::GeneralError, "I need a SPARQL endpoint" if self.class.sparql_endpoint.nil? attributes = data.include?('attributes') ? data['attributes'] : data raise "id is mandatory when updating" unless attributes.keys.include?('id') id = attributes.delete('id') sparql = sparql_client || SPARQL::Client.new(self.class.sparql_endpoint) # prefetched_original is used only when it is a complete entity; an id-only stub # cannot seed updated_klass (omitted mandatory attributes would be lost). original_klass = prefetched_original unless prefetched_original && shallow_stub?(prefetched_original) original_klass ||= load_original(id) raise Solis::Error::NotFoundError if original_klass.nil? updated_klass = original_klass.deep_dup # Cache readonly entities list once readonly_list = (Solis::Options.instance.get[:embedded_readonly] || []).map(&:to_s) # Track entities to potentially delete (only used in PUT mode) entities_to_check_for_deletion = {} # First pass: collect all embedded entities for batched existence check = {} attributes.each_pair do |key, value| unless original_klass.class.[:attributes][key][:node].nil? value = [value] unless value.is_a?(Array) [key] = value.map do |sub_value| self.class.graph.shape_as_model(original_klass.class.[:attributes][key][:datatype].to_s).new(sub_value) end end end = .values.flatten existing_ids = self.class.batch_exists?(sparql, ) # Batch-load full stored originals for embedded entities that already exist, so # each recursive embedded update receives a complete original (one query per class). = .select do |e| existing_ids.include?(e.graph_id) && !readonly_entity?(e, readonly_list) end = batch_load_originals() # Second pass: process embedded entities using batched results .each do |key, | value = attributes[key] value = [value] unless value.is_a?(Array) # Get original embedded entities for this attribute = original_klass.instance_variable_get("@#{key}") = [] unless .nil? || .is_a?(Array) ||= [] # Track original IDs original_ids = .map { |e| solis_model?(e) ? e.id : nil }.compact # Build new array of embedded entities = [] new_ids = [] .each do || new_ids << .id if .id entity_exists = existing_ids.include?(.graph_id) if readonly_entity?(, readonly_list) if entity_exists << else Solis::LOGGER.warn("#{.class.name} (id: #{.id}) is readonly but does not exist in database. Skipping.") end else if entity_exists = properties_to_hash() .update(, validate_dependencies, false, nil, prefetched_original: [.id]) << else = .save(validate_dependencies, false) << end end end if patch # PATCH mode: merge new embedded entities into the original array. # Keep original entities that were not mentioned in the update data. unmentioned = .select do |e| solis_model?(e) && !new_ids.include?(e.id) end merged_values = unmentioned + else # PUT mode: replace the entire array; detect orphans for deletion merged_values = orphaned_ids = original_ids - new_ids unless orphaned_ids.empty? orphaned_entities = .select { |e| solis_model?(e) && orphaned_ids.include?(e.id) } entities_to_check_for_deletion[key] = orphaned_entities end end maxcount = original_klass.class.[:attributes][key][:maxcount] = maxcount && maxcount == 1 ? merged_values.first : merged_values updated_klass.instance_variable_set("@#{key}", ) end # Process non-embedded attributes attributes.each_pair do |key, value| next unless original_klass.class.[:attributes][key][:node].nil? updated_klass.instance_variable_set("@#{key}", value) end before_update_proc&.call(original_klass, updated_klass) properties_original_klass = properties_to_hash(original_klass) properties_updated_klass = properties_to_hash(updated_klass) if Hashdiff.best_diff(properties_original_klass, properties_updated_klass).empty? Solis::LOGGER.info("#{original_klass.class.name} unchanged, skipping") data = original_klass else # The delete graph carries the stored original's triples; the insert graph the # updated entity's. Embedded children are emitted as URI references in both — # they are persisted by their own recursive update/save above. delete_graph = as_graph(original_klass, deep: false) insert_graph = as_graph(updated_klass, deep: false) where_graph = RDF::Graph.new(graph_name: RDF::URI("#{self.class.graph_name}#{tableized_class_name(self)}/#{id}"), data: RDF::Repository.new) if id.is_a?(Array) id.each do |i| where_graph << [RDF::URI("#{self.class.graph_name}#{tableized_class_name(self)}/#{i}"), :p, :o] end else where_graph << [RDF::URI("#{self.class.graph_name}#{tableized_class_name(self)}/#{id}"), :p, :o] end validate_graph(insert_graph) if validate_dependencies delete_insert_query = SPARQL::Client::Update::DeleteInsert.new(delete_graph, insert_graph, where_graph, graph: insert_graph.name).to_s delete_insert_query.gsub!('_:p', '?p') sparql.query(delete_insert_query) # Invalidate cache before verification to avoid stale reads Solis::Query.invalidate_cache_for(self.class.name) # Verify the update succeeded by re-fetching; fallback to insert if needed data = self.query.filter({ filters: { id: [id] } }).find_all.map { |m| m }&.first if data.nil? sparql.insert_data(insert_graph, graph: insert_graph.name) data = updated_klass end # Delete orphaned entities after successful update (PUT mode only) delete_orphaned_entities(entities_to_check_for_deletion, sparql) unless patch end # Invalidate cached queries for this entity type Solis::Query.invalidate_cache_for(self.class.name) after_update_proc&.call(updated_klass, data) data rescue StandardError => e original_graph = as_graph(original_klass, deep: false) if defined?(original_klass) && original_klass Solis::LOGGER.error(e.) Solis::LOGGER.error original_graph.dump(:ttl) if defined?(original_graph) && original_graph Solis::LOGGER.error delete_insert_query if defined?(delete_insert_query) sparql.insert_data(original_graph, graph: original_graph.name) if defined?(original_graph) && original_graph && defined?(sparql) && sparql raise e end |
#valid? ⇒ Boolean
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# File 'lib/solis/model.rb', line 103 def valid? begin graph = as_graph(self) rescue Solis::Error::InvalidAttributeError => e Solis::LOGGER.error(e.) end shacl = SHACL.get_shapes(self.class.graph.instance_variable_get(:"@graph")) report = shacl.execute(graph) report.conform? rescue StandardError => e false end |