services/api/app/controllers/arvados/v1/groups_controller.rb

   1 class Arvados::V1::GroupsController < ApplicationController
   2
   3   def self._contents_requires_parameters
   4     params = _index_requires_parameters.
   5       merge({
   6               uuid: {
   7                 type: 'string', required: false, default: nil
   8               },
   9               recursive: {
  10                 type: 'boolean', required: false, description: 'Include contents from child groups recursively.'
  11               },
  12             })
  13     params.delete(:select)
  14     params
  15   end
  16
  17   def render_404_if_no_object
  18     if params[:action] == 'contents'
  19       if !params[:uuid]
  20         # OK!
  21         @object = nil
  22         true
  23       elsif @object
  24         # Project group
  25         true
  26       elsif (@object = User.where(uuid: params[:uuid]).first)
  27         # "Home" pseudo-project
  28         true
  29       else
  30         super
  31       end
  32     else
  33       super
  34     end
  35   end
  36
  37   def contents
  38     load_searchable_objects
  39     send_json({
  40       :kind => "arvados#objectList",
  41       :etag => "",
  42       :self_link => "",
  43       :offset => @offset,
  44       :limit => @limit,
  45       :items_available => @items_available,
  46       :items => @objects.as_api_response(nil)
  47     })
  48   end
  49
  50   protected
  51
  52   def load_searchable_objects
  53     all_objects = []
  54     @items_available = 0
  55
  56     # Trick apply_where_limit_order_params into applying suitable
  57     # per-table values. *_all are the real ones we'll apply to the
  58     # aggregate set.
  59     limit_all = @limit
  60     offset_all = @offset
  61     # save the orders from the current request as determined by load_param,
  62     # but otherwise discard them because we're going to be getting objects
  63     # from many models
  64     request_orders = @orders.clone
  65     @orders = []
  66
  67     request_filters = @filters
  68
  69     klasses = [Group,
  70      Job, PipelineInstance, PipelineTemplate, ContainerRequest, Workflow,
  71      Collection,
  72      Human, Specimen, Trait]
  73
  74     table_names = Hash[klasses.collect { |k| [k, k.table_name] }]
  75
  76     disabled_methods = Rails.configuration.disable_api_methods
  77     avail_klasses = table_names.select{|k, t| !disabled_methods.include?(t+'.index')}
  78     klasses = avail_klasses.keys
  79
  80     request_filters.each do |col, op, val|
  81       if col.index('.') && !table_names.values.include?(col.split('.', 2)[0])
  82         raise ArgumentError.new("Invalid attribute '#{col}' in filter")
  83       end
  84     end
  85
  86     wanted_klasses = []
  87     request_filters.each do |col,op,val|
  88       if op == 'is_a'
  89         (val.is_a?(Array) ? val : [val]).each do |type|
  90           type = type.split('#')[-1]
  91           type[0] = type[0].capitalize
  92           wanted_klasses << type
  93         end
  94       end
  95     end
  96
  97     filter_by_owner = {}
  98     if @object
  99       if params['recursive']
 100         filter_by_owner[:owner_uuid] = [@object.uuid] + @object.descendant_project_uuids
 101       else
 102         filter_by_owner[:owner_uuid] = @object.uuid
 103       end
 104     end
 105
 106     seen_last_class = false
 107     klasses.each do |klass|
 108       @offset = 0 if seen_last_class  # reset offset for the new next type being processed
 109
 110       # if current klass is same as params['last_object_class'], mark that fact
 111       seen_last_class = true if((params['count'].andand.==('none')) and
 112                                 (params['last_object_class'].nil? or
 113                                  params['last_object_class'].empty? or
 114                                  params['last_object_class'] == klass.to_s))
 115
 116       # if klasses are specified, skip all other klass types
 117       next if wanted_klasses.any? and !wanted_klasses.include?(klass.to_s)
 118
 119       # don't reprocess klass types that were already seen
 120       next if params['count'] == 'none' and !seen_last_class
 121
 122       # don't process rest of object types if we already have needed number of objects
 123       break if params['count'] == 'none' and all_objects.size >= limit_all
 124
 125       # If the currently requested orders specifically match the
 126       # table_name for the current klass, apply that order.
 127       # Otherwise, order by recency.
 128       request_order =
 129         request_orders.andand.find { |r| r =~ /^#{klass.table_name}\./i } ||
 130         klass.default_orders.join(", ")
 131
 132       @select = nil
 133       where_conds = filter_by_owner
 134       if klass == Collection
 135         @select = klass.selectable_attributes - ["manifest_text"]
 136       elsif klass == Group
 137         where_conds = where_conds.merge(group_class: "project")
 138       end
 139
 140       @filters = request_filters.map do |col, op, val|
 141         if !col.index('.')
 142           [col, op, val]
 143         elsif (col = col.split('.', 2))[0] == klass.table_name
 144           [col[1], op, val]
 145         else
 146           nil
 147         end
 148       end.compact
 149
 150       if klass == Collection and params[:include_trash]
 151         @objects = klass.unscoped.readable_by(*@read_users).
 152           order(request_order).where(where_conds)
 153       else
 154         @objects = klass.readable_by(*@read_users).
 155           order(request_order).where(where_conds)
 156       end
 157       klass_limit = limit_all - all_objects.count
 158       @limit = klass_limit
 159       apply_where_limit_order_params klass
 160       klass_object_list = object_list(model_class: klass)
 161       klass_items_available = klass_object_list[:items_available] || 0
 162       @items_available += klass_items_available
 163       @offset = [@offset - klass_items_available, 0].max
 164       all_objects += klass_object_list[:items]
 165
 166       if klass_object_list[:limit] < klass_limit
 167         # object_list() had to reduce @limit to comply with
 168         # max_index_database_read. From now on, we'll do all queries
 169         # with limit=0 and just accumulate items_available.
 170         limit_all = all_objects.count
 171       end
 172     end
 173
 174     @objects = all_objects
 175     @limit = limit_all
 176     @offset = offset_all
 177   end
 178
 179 end