Class: Dbviewer::Api::EntityRelationshipDiagramsController

Inherits:
BaseController show all
Defined in:
app/controllers/dbviewer/api/entity_relationship_diagrams_controller.rb

Instance Method Summary collapse

Methods inherited from BaseController

#render_error, #render_success

Methods included from DatabaseOperations

#available_connections, #current_connection_key, #current_table?, #database_manager, #execute_query, #export_table_to_csv, #fetch_database_analytics, #fetch_filtered_record_count, #fetch_mini_erd_for_table, #fetch_table_columns, #fetch_table_metadata, #fetch_table_record_count, #fetch_table_records, #fetch_table_relationships, #fetch_tables, #get_adapter_name, #get_database_name, #prepare_query, #safe_quote_table_name, #switch_connection, #table_query_operations

Instance Method Details

#relationships ⇒ Object 



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# File 'app/controllers/dbviewer/api/entity_relationship_diagrams_controller.rb', line 6

def relationships
  @table_relationships = fetch_table_relationships
  render_success({
    relationships: @table_relationships,
    status: "success"
  })
end

#table_relationships ⇒ Object 



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# File 'app/controllers/dbviewer/api/entity_relationship_diagrams_controller.rb', line 14

def table_relationships
  table_names = params[:tables]&.split(",") || []
  relationships = []

  table_names.each do |table_name|
    next unless @tables.any? { |t| t[:name] == table_name }

    begin
      metadata = fetch_table_metadata(table_name)
      if metadata && metadata[:foreign_keys].present?
        metadata[:foreign_keys].each do |fk|
          relationships << {
            from_table: table_name,
            to_table: fk[:to_table],
            from_column: fk[:column],
            to_column: fk[:primary_key],
            name: fk[:name]
          }
        end
      end
    rescue => e
      Rails.logger.error("[DBViewer] Error fetching relationships for #{table_name}: #{e.message}")
      # Continue with other tables even if one fails
    end
  end

  render_success({
    relationships: relationships,
    status: "success",
    processed_tables: table_names
  })
end