X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/d02c4efcfdbe8f21fba895749988b14b7db41310..784e112f3fcad487c9f359413fb0dcd8b09c3edb:/services/api/app/controllers/application_controller.rb

diff --git a/services/api/app/controllers/application_controller.rb b/services/api/app/controllers/application_controller.rb
index 47f9d44385..fe5598e0dc 100644
--- a/services/api/app/controllers/application_controller.rb
+++ b/services/api/app/controllers/application_controller.rb
@@ -1,3 +1,16 @@
+module ApiTemplateOverride
+  def allowed_to_render?(fieldset, field, model, options)
+    if options[:select]
+      return options[:select].include? field.to_s
+    end
+    super
+  end
+end
+
+class ActsAsApi::ApiTemplate
+  prepend ApiTemplateOverride
+end
+
 require 'load_param'
 require 'record_filters'
 
@@ -9,6 +22,7 @@ class ApplicationController < ActionController::Base
 
   ERROR_ACTIONS = [:render_error, :render_not_found]
 
+
   respond_to :json
   protect_from_forgery
 
@@ -33,7 +47,7 @@ class ApplicationController < ActionController::Base
   attr_accessor :resource_attrs
 
   def index
-    @objects.uniq!(&:id)
+    @objects.uniq!(&:id) if @select.nil? or @select.include? "id"
     if params[:eager] and params[:eager] != '0' and params[:eager] != 0 and params[:eager] != ''
       @objects.each(&:eager_load_associations)
     end
@@ -63,76 +77,6 @@ class ApplicationController < ActionController::Base
     show
   end
 
-  def self._contents_requires_parameters
-    _index_requires_parameters.
-      merge({
-              include_linked: {
-                type: 'boolean', required: false, default: false
-              },
-            })
-  end
-
-  def contents
-    all_objects = []
-    all_available = 0
-
-    # Trick apply_where_limit_order_params into applying suitable
-    # per-table values. *_all are the real ones we'll apply to the
-    # aggregate set.
-    limit_all = @limit
-    offset_all = @offset
-    @orders = []
-
-    ArvadosModel.descendants.
-      reject(&:abstract_class?).
-      sort_by(&:to_s).
-      each do |klass|
-      case klass.to_s
-        # We might expect klass==Link etc. here, but we would be
-        # disappointed: when Rails reloads model classes, we get two
-        # distinct classes called Link which do not equal each
-        # other. But we can still rely on klass.to_s to be "Link".
-      when 'ApiClientAuthorization', 'UserAgreement', 'Link'
-        # Do not want.
-      else
-        @objects = klass.readable_by(*@read_users)
-        cond_sql = "#{klass.table_name}.owner_uuid = ?"
-        cond_params = [@object.uuid]
-        if params[:include_linked]
-          cond_sql += " OR #{klass.table_name}.uuid IN (SELECT head_uuid FROM links WHERE link_class=#{klass.sanitize 'name'} AND links.tail_uuid=#{klass.sanitize @object.uuid})"
-        end
-        @objects = @objects.where(cond_sql, *cond_params).order("#{klass.table_name}.uuid")
-        @limit = limit_all - all_objects.count
-        apply_where_limit_order_params
-        items_available = @objects.
-          except(:limit).except(:offset).
-          count(:id, distinct: true)
-        all_available += items_available
-        @offset = [@offset - items_available, 0].max
-
-        all_objects += @objects.to_a
-      end
-    end
-    @objects = all_objects || []
-    @links = Link.where('link_class=? and owner_uuid=?'\
-                        ' and owner_uuid=tail_uuid'\
-                        ' and head_uuid in (?)',
-                        'name',
-                        @object.uuid,
-                        @objects.collect(&:uuid))
-    @object_list = {
-      :kind  => "arvados#objectList",
-      :etag => "",
-      :self_link => "",
-      :links => @links.as_api_response(nil),
-      :offset => offset_all,
-      :limit => limit_all,
-      :items_available => all_available,
-      :items => @objects.as_api_response(nil)
-    }
-    render json: @object_list
-  end
-
   def catch_redirect_hint
     if !current_user
       if params.has_key?('redirect_to') then
@@ -186,14 +130,17 @@ class ApplicationController < ActionController::Base
     apply_where_limit_order_params
   end
 
-  def apply_where_limit_order_params
-    ar_table_name = @objects.table_name
-
-    ft = record_filters @filters, ar_table_name
+  def apply_filters
+    ft = record_filters @filters, @objects.table_name
     if ft[:cond_out].any?
       @objects = @objects.where(ft[:cond_out].join(' AND '), *ft[:param_out])
     end
+  end
 
+  def apply_where_limit_order_params
+    apply_filters
+
+    ar_table_name = @objects.table_name
     if @where.is_a? Hash and @where.any?
       conditions = ['1=1']
       @where.each do |attr,value|
@@ -247,9 +194,11 @@ class ApplicationController < ActionController::Base
       end
     end
 
+    @objects = @objects.select(@select.map { |s| "#{table_name}.#{ActiveRecord::Base.connection.quote_column_name s.to_s}" }.join ", ") if @select
     @objects = @objects.order(@orders.join ", ") if @orders.any?
     @objects = @objects.limit(@limit)
     @objects = @objects.offset(@offset)
+    @objects = @objects.uniq(@distinct) if not @distinct.nil?
   end
 
   def resource_attrs
@@ -404,7 +353,7 @@ class ApplicationController < ActionController::Base
       :self_link => "",
       :offset => @offset,
       :limit => @limit,
-      :items => @objects.as_api_response(nil)
+      :items => @objects.as_api_response(nil, {select: @select})
     }
     if @objects.respond_to? :except
       @object_list[:items_available] = @objects.
@@ -429,7 +378,9 @@ class ApplicationController < ActionController::Base
     {
       filters: { type: 'array', required: false },
       where: { type: 'object', required: false },
-      order: { type: 'string', required: false },
+      order: { type: 'array', required: false },
+      select: { type: 'array', required: false },
+      distinct: { type: 'boolean', required: false },
       limit: { type: 'integer', required: false, default: DEFAULT_LIMIT },
       offset: { type: 'integer', required: false, default: 0 },
     }