Class: Etna::Clients::Magma::Pager

Inherits:
Object
  • Object
show all
Defined in:
lib/etna/clients/magma/client.rb

Instance Method Summary collapse

Constructor Details

#initialize(client, update_request, page_size) ⇒ Pager

Returns a new instance of Pager.



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# File 'lib/etna/clients/magma/client.rb', line 93

def initialize(client, update_request, page_size)
  @client = client

  @update_request = update_request

  @page_size = [ page_size || 2, 2 ].max
end

Instance Method Details

#add_to_page(page, entry) ⇒ Object 



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# File 'lib/etna/clients/magma/client.rb', line 187

def add_to_page(page, entry)
  page[ entry[:model_name] ] ||= {}
  page[ entry[:model_name] ][ entry[:record_name] ] = entry[:record]
end

#flat_records ⇒ Object 



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# File 'lib/etna/clients/magma/client.rb', line 132

def flat_records
  project = @client.retrieve(
    project_name: @update_request.project_name,
    hide_templates: false
  )

  flat_records = {}
  revisions.each do |model_name, records|
    records.each do |record_name, record|
      flat = {
          model_name: model_name,
          record_name: record_name,
          record: record
      }
      flat_name = "#{model_name}.#{record_name}"

      # if the update sets a table attribute, attach table records to their parent so they are submitted together
      flat_tables = []
      record.each do |attribute_name, value|
        att = project.models.model(model_name).template.attributes.attribute(attribute_name)
        if att.attribute_type == 'table'
          value.each do |table_entry_name|
            table_record = revisions[ att.link_model_name ][table_entry_name]
            flat_tables.push(
              {
                model_name: att.link_model_name,
                record_name: table_entry_name,
                record: table_record
              }
            )

            # exclude the attached table record from the flattened list of records
            flat_records[ "#{ att.link_model_name }.#{table_entry_name}" ] = nil
          end
        end
      end
      flat[:tables] = flat_tables
      flat_records[ flat_name ] = flat unless flat_records.has_key?(flat_name)
    end
  end

  return flat_records.values.compact.shuffle
end

#response ⇒ Object 



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# File 'lib/etna/clients/magma/client.rb', line 101

def response
  page_count = 0
  page = {}

  results = UpdateResponse.new({"models" => {}})

  flat_records.each do |flat_record|
    page_count += 1 + flat_record[:tables].length

    add_to_page( page, flat_record )

    flat_record[:tables].each do |table_record|
      add_to_page(page, table_record)
    end

    if page_count >= @page_size
      results.update(update_part(page))
      page = {}
      page_count = 0
    end
  end

  results.update(update_part(page)) if page_count > 0

  return results
end

#revisions ⇒ Object 



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# File 'lib/etna/clients/magma/client.rb', line 128

def revisions
  @update_request.revisions
end

#update_part(page) ⇒ Object 



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# File 'lib/etna/clients/magma/client.rb', line 176

def update_part(page)
  @client.update_json(
    UpdateRequest.new(
      project_name: @update_request.project_name,
      revisions: page,
      dry_run: @update_request.dry_run,
      autolink: @update_request.autolink
    )
  )
end