Class: Plate

Overview

A plate is a piece of labware made up of a number of wells. This class represents the physical piece of plastic.

  • PlatePurpose: describes the role a plate has in the lab. In some cases a plate's purpose may change as it gets processed.

  • Well: Plates can have multiple wells (most often 96 or 384) each of which can contain multiple samples.

  • PlateType: Identifies the plates form factor, typically provided to robots to ensure tips are positioned correctly.

Defined Under Namespace

Modules: FluidigmBehaviour, PoolingMetadata Classes: Creator, CreatorParameters, QuadCreator, SampleTubeFactory

Constant Summary

Constants included from Metadata

Metadata::SECTION_FIELDS

Instance Attribute Summary

Attributes inherited from Labware

#storage_location_service

Class Method Summary collapse

Instance Method Summary collapse

Methods included from QcFile::Associations

has_qc_files

Methods included from Metadata

has_metadata

Methods included from SubmissionPool::Association::Plate

included

Methods included from Barcode::Barcodeable

#any_barcode_matching?, #barcode_format, #barcode_number, #cgap_barcode, #cgap_barcode=, #external_barcode, #external_barcode=, #external_identifier, #fluidigm_barcode, #fluidigm_barcode=, #foreign_barcode=, included, #infinium_barcode, #infinium_barcode=, #prefix, #primary_barcode, #printable_target, #sanger_barcode

Methods included from PlateCreation::CreationChild

included

Methods included from PoolingMetadata

#pools

Methods included from FluidigmBehaviour

#apply_fluidigm_data, included, #retrieve_fluidigm_data

Methods included from Asset::Ownership::Owned

#change_owner_to, included

Methods included from Transfer::State::PlateState

included

Methods included from Transfer::Associations

included

Methods included from Api::PlateIo::Extensions

included, #json_root

Methods inherited from Labware

#ancestor_of_purpose, #ancestors_of_purpose, #child, #display_name, #external_identifier, find_by_barcode, find_from_any_barcode, #generate_name, #labware, #labwhere_location, labwhere_locations, #parent, #received_date, #retention_instructions, #role, #scanned_in_date, #source_plate, #source_plates, #spiked_in_buffer, #storage_location

Methods included from SharedBehaviour::Named

included

Methods included from AssetLink::Associations

included

Methods included from Uuid::Uuidable

included, #unsaved_uuid!, #uuid

Methods inherited from Asset

#ancestor_of_purpose, #asset_type_for_request_types, #barcode_number, #contained_samples, #get_qc_result_value_for, #has_stock_asset?, #label, #label=, #original_stock_plates, #prefix, #printable?, #printable_target, #register_stock!, #request_types, #type, #update_from_qc

Methods included from EventfulRecord

#has_many_events, #has_many_lab_events, #has_one_event_with_family

Methods included from Event::PlateEvents

#event_date, #fluidigm_stamp_date, #gel_qc_date, #pico_date, #qc_started_date, #sequenom_stamp_date

Methods inherited from ApplicationRecord

alias_association, convert_labware_to_receptacle_for, find_by_id_or_name, find_by_id_or_name!

Methods included from Squishify

extended

Class Method Details

.create_with_barcode!(*args) ⇒ Object



343
344
345
346
347
# File 'app/models/plate.rb', line 343

def self.create_with_barcode!(*args, &)
  attributes = args.extract_options!
  attributes[:sanger_barcode] ||= PlateBarcode.create_barcode
  create!(attributes, &)
end

.plate_ids_from_requests(requests) ⇒ Object



311
312
313
# File 'app/models/plate.rb', line 311

def self.plate_ids_from_requests(requests)
  with_requests(requests).pluck(:id)
end

.search_for_plates(params) ⇒ Object



255
256
257
258
259
260
261
262
# File 'app/models/plate.rb', line 255

def self.search_for_plates(params)
  with_faculty_sponsor_ids(params[:faculty_sponsor_ids] || nil)
    .with_study_id(params[:study_id] || nil)
    .with_plate_purpose_ids(params[:plate_purpose_ids] || nil)
    .created_between(params[:start_date], params[:end_date])
    .filter_by_barcode(params[:barcodes] || nil)
    .distinct
end

Instance Method Details

#after_comment_addition(comment) ⇒ Object



475
476
477
# File 'app/models/plate.rb', line 475

def after_comment_addition(comment)
  comments.add_comment_to_submissions(comment)
end

#all_submission_idsObject

Prioritised the submissions that have been made from the plate then falls back onto the ones under which the plate was made



183
184
185
# File 'app/models/plate.rb', line 183

def all_submission_ids
  submission_ids_as_source.presence || submission_ids
end

#buffer_required?Boolean

Returns:

  • (Boolean)


357
358
359
# File 'app/models/plate.rb', line 357

def buffer_required?
  wells.any?(&:buffer_required?)
end

#cherrypick_completedVoid

Called when cherrypicking is completed to allow the plate to trigger any callbacks, such as broadcasting Fluidigm plates to the warehouse. This behaviour varies based on the PlatePurpose

Returns:

  • (Void)


160
161
162
# File 'app/models/plate.rb', line 160

def cherrypick_completed
  plate_purpose.cherrypick_completed(self)
end

#commentsObject



201
202
203
# File 'app/models/plate.rb', line 201

def comments
  @comments ||= CommentsProxy::Plate.new(self)
end

#compatible_purposesObject



412
413
414
# File 'app/models/plate.rb', line 412

def compatible_purposes
  PlatePurpose.compatible_with_purpose(purpose)
end

#convert_to(new_purpose) ⇒ Object



408
409
410
# File 'app/models/plate.rb', line 408

def convert_to(new_purpose)
  update!(plate_purpose: new_purpose)
end

#detailsObject



307
308
309
# File 'app/models/plate.rb', line 307

def details
  purpose.try(:name) || 'Unknown plate purpose'
end

#find_well_by_name(well_name) ⇒ Object Also known as: find_well_by_map_description



286
287
288
# File 'app/models/plate.rb', line 286

def find_well_by_name(well_name)
  wells.loaded? ? wells.indexed_by_location[well_name] : wells.located_at_position(well_name).first
end

#generate_barcodeObject

Plates use a different counter to tubes, and prior to the foreign barcodes update this method would have fallen back to Barcodable#generate tubes, and potentially generated an invalid plate barcode. In the future we probably want to scrap this approach entirely, and generate all barcodes in the plate style. (That is, as part of the factory on, eg. plate purpose)

Raises:

  • (StandardError)


466
467
468
469
# File 'app/models/plate.rb', line 466

def generate_barcode
  raise StandardError,
        "#generate_barcode has been called on plate, which wasn't supposed to happen, and probably indicates a bug."
end

#heightObject



383
384
385
# File 'app/models/plate.rb', line 383

def height
  asset_shape.plate_height(size)
end

#invalid_positions(positions) ⇒ Array

Given a list of well map_descriptions (eg. A1), returns those not present on the plate

Parameters:

  • positions (Array)

    Array of positions to test

Returns:

  • (Array)

    Array of invalid positions



368
369
370
# File 'app/models/plate.rb', line 368

def invalid_positions(positions)
  (positions.uniq - unique_positions_on_plate).sort
end

#iterationObject



191
192
193
194
195
196
197
198
199
# File 'app/models/plate.rb', line 191

def iteration
  iter =
    siblings # assets sharing the same parent
      .where(plate_purpose_id:, sti_type:) # of the same purpose and type
      .where("#{self.class.table_name}.created_at <= ?", created_at) # created before or at the same time
      .count(:id) # count the siblings.

  iter.zero? ? nil : iter # Maintains compatibility with legacy version
end

#mapsObject



282
283
284
# File 'app/models/plate.rb', line 282

def maps
  Map.where_plate_size(size).where_plate_shape(asset_shape)
end

#name_for_labelObject



376
377
378
# File 'app/models/plate.rb', line 376

def name_for_label
  name
end

#number_of_blank_samplesObject



349
350
351
# File 'app/models/plate.rb', line 349

def number_of_blank_samples
  wells.with_blank_samples.count
end

#occupied_well_countInteger

Note:

Does not take into account the Sample#empty_supplier_sample_name flag on older samples

Counts the number of wells containing one or more aliquots.

Returns:

  • (Integer)

    The number of wells with samples



150
151
152
# File 'app/models/plate.rb', line 150

def occupied_well_count
  wells.with_contents.count
end

#pick_as_control?false

When Cherrypicking, especially on the Hamilton, control plates get placed on a seperate bed. ControlPlates overide this.

Returns:

  • (false)


494
495
496
# File 'app/models/plate.rb', line 494

def pick_as_control?
  false
end

#plate_columnsObject



295
296
297
# File 'app/models/plate.rb', line 295

def plate_columns
  (1..width)
end

#plate_rowsObject



291
292
293
# File 'app/models/plate.rb', line 291

def plate_rows
  ('A'..('A'.getbyte(0) + height - 1).chr.to_s).to_a
end

#plate_typeObject



299
300
301
# File 'app/models/plate.rb', line 299

def plate_type
  labware_type&.name || Sequencescape::Application.config.plate_default_type
end

#plate_type=(plate_type) ⇒ Object



303
304
305
# File 'app/models/plate.rb', line 303

def plate_type=(plate_type)
  self.labware_type = PlateType.find_by(name: plate_type)
end

#priorityObject



205
206
207
# File 'app/models/plate.rb', line 205

def priority
  waiting_submissions.maximum(:priority) || in_progress_submissions.maximum(:priority) || 0
end

#receptacles_with_positionObject

Used to unify interface with TubeRacks. Returns a list of all receptacles wells with position information included for aid performance



117
118
119
# File 'app/models/plate.rb', line 117

def receptacles_with_position
  wells.includes(:map)
end


479
480
481
# File 'app/models/plate.rb', line 479

def related_studies
  studies
end

#sanger_barcode=(barcode) ⇒ Object



471
472
473
# File 'app/models/plate.rb', line 471

def sanger_barcode=(barcode)
  barcodes << barcode
end

#scored?Boolean

Returns:

  • (Boolean)


353
354
355
# File 'app/models/plate.rb', line 353

def scored?
  wells.any?(&:get_gel_pass)
end

#stateString

The state of a plate loosely defines what has happened to it. In most cases it is determined by aggregating the state of transfer requests into the wells, although exact behaviour is determined by the PlatePurpose. State typically only works for pipeline application plates. In general:

  • pending: The plate has been registered, but it empty.

  • started: The plate contains samples, but required further processing

  • passed: Work on the plate is complete, and it can be transferred to another target

  • failed: The plate failed QC and can not be progressed further

  • cancelled: The plate is no longer required and should be ignored.

Returns:

  • (String)

    Name of the state the plate is in



132
133
134
# File 'app/models/plate.rb', line 132

def state
  plate_purpose.state_of(self)
end

#stock_platePlate?

Deprecated.

Do not use this for new behaviour.

Attempts to find the 'stock_plate' for the plate. However this is a fairly nebulous concept. Often it means the plate that first entered a pipeline, but in other cases it can be the XP plate part way through the process. Further complication comes from tubes which pool across multiple plates, where identifying a single stock plate is meaningless. In other scenarios, you split plates out again and the asset link graph is insufficient.

JG: 2021-02-11: See github.com/sanger/sequencescape/issues/3040 for more information

Returns:

  • (Plate, nil)

    The stock plate if found



337
338
339
# File 'app/models/plate.rb', line 337

def stock_plate
  @stock_plate ||= stock_plate? ? self : lookup_stock_plate
end

#stock_plate?Boolean

Returns:

  • (Boolean)


315
316
317
318
319
# File 'app/models/plate.rb', line 315

def stock_plate?
  return true if plate_purpose.nil?

  plate_purpose.stock_plate? && plate_purpose.attached?(self)
end

#stock_wellsObject

This method returns a map from the wells on the plate to their stock well.



392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
# File 'app/models/plate.rb', line 392

def stock_wells # rubocop:todo Metrics/AbcSize, Metrics/MethodLength
  # Optimisation: if the plate is a stock plate then it's wells are it's stock wells!]
  if stock_plate?
    wells.with_pool_id.index_with { |w| [w] }
  else
    wells
      .include_stock_wells
      .with_pool_id
      .each_with_object({}) do |w, store|
        storted_stock_wells = w.stock_wells.sort_by { |sw| sw.map.column_order }
        store[w] = storted_stock_wells unless storted_stock_wells.empty?
      end
      .tap { |stock_wells_hash| raise "No stock plate associated with #{id}" if stock_wells_hash.empty? }
  end
end

#subject_typeObject



458
459
460
# File 'app/models/plate.rb', line 458

def subject_type
  'plate'
end

#submission_idsObject



173
174
175
# File 'app/models/plate.rb', line 173

def submission_ids
  @submission_ids ||= in_progress_submissions.ids
end

#submission_ids_as_sourceObject



177
178
179
# File 'app/models/plate.rb', line 177

def submission_ids_as_source
  @submission_ids_as_source ||= waiting_submissions.ids
end

#submissionsObject



187
188
189
# File 'app/models/plate.rb', line 187

def submissions
  waiting_submissions.presence || in_progress_submissions
end

#teamObject

Finds the product line (= team) of the requests coming out of this plate's 'stock plate'. Written at a time when requests weren't recorded on the aliquot, so could be re-written in a less convoluted way.



443
444
445
446
447
448
449
450
451
452
453
454
455
# File 'app/models/plate.rb', line 443

def team
  ProductLine
    .joins(
      [
        'INNER JOIN request_types ON request_types.product_line_id = product_lines.id',
        'INNER JOIN requests ON requests.request_type_id = request_types.id',
        'INNER JOIN well_links ON well_links.source_well_id = requests.asset_id AND well_links.type = "stock"',
        'INNER JOIN receptacles AS re ON re.id = well_links.target_well_id'
      ]
    )
    .find_by(['re.labware_id = ?', id])
    .try(:name) || 'UNKNOWN'
end

#unique_positions_on_plateObject



372
373
374
# File 'app/models/plate.rb', line 372

def unique_positions_on_plate
  maps.distinct.pluck(:description)
end

#update_qc_values_with_parser(parser) ⇒ Object



420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
# File 'app/models/plate.rb', line 420

def update_qc_values_with_parser(parser)
  ActiveRecord::Base.transaction do
    qc_assay = QcAssay.new
    parser.each_well_and_parameters do |position, well_updates|
      # We might have a nil well if a plate was only partially cherrypicked
      well = well_hash[position] || next
      well_updates.each do |attribute, value|
        QcResult.create!(
          asset: well,
          key: attribute,
          unit_value: value,
          assay_type: parser.assay_type,
          assay_version: parser.assay_version,
          qc_assay: qc_assay
        )
      end
    end
  end
  true
end

#update_volume(volume_change) ⇒ Void

Modifies the recorded volume information of all wells on a plate by volume_change

Parameters:

  • volume_change (Numeric)

    The adjustment to apply to all wells (in ul). Negative values reduce the target volume, positive values increase it.

Returns:

  • (Void)


141
142
143
# File 'app/models/plate.rb', line 141

def update_volume(volume_change)
  ActiveRecord::Base.transaction { wells.each { |well| well.update_volume(volume_change) } }
end

#well_hashObject



416
417
418
# File 'app/models/plate.rb', line 416

def well_hash
  @well_hash ||= wells.include_map.includes(:well_attribute).index_by(&:map_description)
end

#wells_in_column_orderObject



487
488
489
# File 'app/models/plate.rb', line 487

def wells_in_column_order
  wells.loaded? ? wells.sort_by(&:column_order) : wells.in_column_major_order
end

#wells_in_row_orderObject



483
484
485
# File 'app/models/plate.rb', line 483

def wells_in_row_order
  wells.loaded? ? wells.sort_by(&:row_order) : wells.in_row_major_order
end

#widthObject



387
388
389
# File 'app/models/plate.rb', line 387

def width
  asset_shape.plate_width(size)
end