Updated Measurement to reflect ReadoutValue removal

app/models/measurement.rb

@@ -5,7 +5,7 @@ class Measurement < ActiveRecord::Base
   has_many :readouts, inverse_of: :measurement, dependent: :destroy, validate: true
   validates :readouts, presence: true
   accepts_nested_attributes_for :readouts, allow_destroy: true, reject_if: proc { |attrs|
-    attrs['quantity_id'].blank?
+    attrs['quantity_id'].blank? && attrs['value'].blank?
   }
   # Readout (quantity_id, unit_id) pair uniqueness check for nested attributes
   validate do
@@ -15,7 +15,7 @@ class Measurement < ActiveRecord::Base
     end
   end
 
-  validates :name, presence: true, uniqueness: {scope: :project_id}
+  validates :name, presence: true
 
   after_initialize do
     if new_record?

app/models/nutrient.rb

@@ -4,7 +4,7 @@ class Nutrient < ActiveRecord::Base
   belongs_to :unit, required: true
 
   validates :quantity, uniqueness: {scope: :ingredient_id}
-  validates :amount, numericality: {greater_thani_or_equal_to: 0.0}
+  validates :amount, numericality: {greater_than_or_equal_to: 0.0}
 
   after_initialize do
     if new_record?

app/models/readout.rb

@@ -4,4 +4,5 @@ class Readout < ActiveRecord::Base
   belongs_to :unit, required: true
 
   validates :quantity, uniqueness: {scope: [:measurement_id, :unit_id]}
+  validates :value, numericality: true
 end