X-Git-Url: https://git.arvados.org/arvados.git/blobdiff_plain/41887dd213cfa165925e94d4f3bb120edeb1a30d..8c7fb5f13cb167740b7b228c7fab40f2980d1978:/services/api/app/models/arvados_model.rb

diff --git a/services/api/app/models/arvados_model.rb b/services/api/app/models/arvados_model.rb
index 13ccd70335..02e9386bfe 100644
--- a/services/api/app/models/arvados_model.rb
+++ b/services/api/app/models/arvados_model.rb
@@ -4,6 +4,7 @@ class ArvadosModel < ActiveRecord::Base
   self.abstract_class = true
 
   include CurrentApiClient      # current_user, current_api_client, etc.
+  include DbCurrentTime
 
   attr_protected :created_at
   attr_protected :modified_by_user_uuid
@@ -56,6 +57,12 @@ class ArvadosModel < ActiveRecord::Base
     "#{current_api_base}/#{self.class.to_s.pluralize.underscore}/#{self.uuid}"
   end
 
+  def self.selectable_attributes(template=:user)
+    # Return an array of attribute name strings that can be selected
+    # in the given template.
+    api_accessible_attributes(template).map { |attr_spec| attr_spec.first.to_s }
+  end
+
   def self.searchable_columns operator
     textonly_operator = !operator.match(/[<=>]/)
     self.columns.select do |col|
@@ -96,6 +103,10 @@ class ArvadosModel < ActiveRecord::Base
     api_column_map
   end
 
+  def self.default_orders
+    ["#{table_name}.modified_at desc", "#{table_name}.uuid"]
+  end
+
   # If current user can manage the object, return an array of uuids of
   # users and groups that have permission to write the object. The
   # first two elements are always [self.owner_uuid, current user's
@@ -107,6 +118,7 @@ class ArvadosModel < ActiveRecord::Base
   # If current user cannot write this object, just return
   # [self.owner_uuid].
   def writable_by
+    return [owner_uuid] if not current_user
     unless (owner_uuid == current_user.uuid or
             current_user.is_admin or
             (current_user.groups_i_can(:manage) & [uuid, owner_uuid]).any?)
@@ -205,6 +217,25 @@ class ArvadosModel < ActiveRecord::Base
     attributes
   end
 
+  def self.full_text_searchable_columns
+    self.columns.select do |col|
+      if col.type == :string or col.type == :text
+        true
+      end
+    end.map(&:name)
+  end
+
+  def self.full_text_tsvector
+    tsvector_str = "to_tsvector('english', "
+    first = true
+    self.full_text_searchable_columns.each do |column|
+      tsvector_str += " || ' ' || " if not first
+      tsvector_str += "coalesce(#{column},'')"
+      first = false
+    end
+    tsvector_str += ")"
+  end
+
   protected
 
   def ensure_ownership_path_leads_to_user
@@ -277,8 +308,13 @@ class ArvadosModel < ActiveRecord::Base
     # Verify "write" permission on new owner
     # default fail unless one of:
     # current_user is this object
-    # current user can_write new owner
-    unless current_user == self or current_user.can? write: owner_uuid
+    # current user can_write new owner, or this object if owner unchanged
+    if new_record? or owner_uuid_changed? or is_a?(ApiClientAuthorization)
+      write_target = owner_uuid
+    else
+      write_target = uuid
+    end
+    unless current_user == self or current_user.can? write: write_target
       logger.warn "User #{current_user.uuid} tried to modify #{self.class.to_s} #{uuid} but does not have permission to write new owner_uuid #{owner_uuid}"
       errors.add :owner_uuid, "cannot be changed without write permission on new owner"
       raise PermissionDeniedError
@@ -328,9 +364,10 @@ class ArvadosModel < ActiveRecord::Base
   end
 
   def update_modified_by_fields
-    self.updated_at = Time.now
+    current_time = db_current_time
+    self.updated_at = current_time
     self.owner_uuid ||= current_default_owner if self.respond_to? :owner_uuid=
-    self.modified_at = Time.now
+    self.modified_at = current_time
     self.modified_by_user_uuid = current_user ? current_user.uuid : nil
     self.modified_by_client_uuid = current_api_client ? current_api_client.uuid : nil
     true
@@ -432,6 +469,7 @@ class ArvadosModel < ActiveRecord::Base
   def self.uuid_prefixes
     unless @@prefixes_hash
       @@prefixes_hash = {}
+      Rails.application.eager_load!
       ActiveRecord::Base.descendants.reject(&:abstract_class?).each do |k|
         if k.respond_to?(:uuid_prefix)
           @@prefixes_hash[k.uuid_prefix] = k
@@ -445,6 +483,10 @@ class ArvadosModel < ActiveRecord::Base
     "_____-#{uuid_prefix}-_______________"
   end
 
+  def self.uuid_regex
+    %r/[a-z0-9]{5}-#{uuid_prefix}-[a-z0-9]{15}/
+  end
+
   def ensure_valid_uuids
     specials = [system_user_uuid]
 
@@ -494,7 +536,6 @@ class ArvadosModel < ActiveRecord::Base
     end
     resource_class = nil
 
-    Rails.application.eager_load!
     uuid.match HasUuid::UUID_REGEX do |re|
       return uuid_prefixes[re[1]] if uuid_prefixes[re[1]]
     end
@@ -519,8 +560,8 @@ class ArvadosModel < ActiveRecord::Base
   end
 
   def log_start_state
-    @old_etag = etag
-    @old_attributes = logged_attributes
+    @old_attributes = Marshal.load(Marshal.dump(attributes))
+    @old_logged_attributes = Marshal.load(Marshal.dump(logged_attributes))
   end
 
   def log_change(event_type)
@@ -539,14 +580,14 @@ class ArvadosModel < ActiveRecord::Base
 
   def log_update
     log_change('update') do |log|
-      log.fill_properties('old', @old_etag, @old_attributes)
+      log.fill_properties('old', etag(@old_attributes), @old_logged_attributes)
       log.update_to self
     end
   end
 
   def log_destroy
     log_change('destroy') do |log|
-      log.fill_properties('old', @old_etag, @old_attributes)
+      log.fill_properties('old', etag(@old_attributes), @old_logged_attributes)
       log.update_to nil
     end
   end