diff --git a/app/models/repository_cell.rb b/app/models/repository_cell.rb
index da25cd46d..67c06085c 100644
--- a/app/models/repository_cell.rb
+++ b/app/models/repository_cell.rb
@@ -19,7 +19,7 @@ class RepositoryCell < ApplicationRecord
                includes(:repository_cell)
                .where(repository_cells: { value_type: 'RepositoryNumberValue' })
              end),
-             optional: true, foreign_key: :value_id
+             optional: true, foreign_key: :value_id, inverse_of: :repository_cell
   belongs_to :repository_date_time_value,
              (lambda do
                includes(:repository_cell)
diff --git a/app/models/repository_number_value.rb b/app/models/repository_number_value.rb
index c31f9c7f8..824f6230a 100644
--- a/app/models/repository_number_value.rb
+++ b/app/models/repository_number_value.rb
@@ -2,9 +2,9 @@
 
 class RepositoryNumberValue < ApplicationRecord
   belongs_to :created_by, foreign_key: :created_by_id, class_name: 'User',
-             inverse_of: :created_repositroy_number_values
+             inverse_of: :created_repository_number_values
   belongs_to :last_modified_by, foreign_key: :last_modified_by_id, class_name: 'User',
-             inverse_of: :modified_repositroy_number_values
+             inverse_of: :modified_repository_number_values
   has_one :repository_cell, as: :value, dependent: :destroy, inverse_of: :value
   accepts_nested_attributes_for :repository_cell
 
diff --git a/app/models/user.rb b/app/models/user.rb
index 4d106c97d..39263392d 100644
--- a/app/models/user.rb
+++ b/app/models/user.rb
@@ -264,12 +264,12 @@ class User < ApplicationRecord
            foreign_key: 'last_modified_by_id',
            inverse_of: :last_modified_by,
            dependent: :nullify
-  has_many :created_repositroy_number_values,
+  has_many :created_repository_number_values,
            class_name: 'RepositoryNumberValue',
            foreign_key: 'created_by_id',
            inverse_of: :created_by,
            dependent: :nullify
-  has_many :modified_repositroy_number_values,
+  has_many :modified_repository_number_values,
            class_name: 'RepositoryNumberValue',
            foreign_key: 'last_modified_by_id',
            inverse_of: :last_modified_by,
diff --git a/app/views/repository_columns/manage_column_partials/_number.html.erb b/app/views/repository_columns/manage_column_partials/_number.html.erb
index 52629e0d1..03ffa9b0f 100644
--- a/app/views/repository_columns/manage_column_partials/_number.html.erb
+++ b/app/views/repository_columns/manage_column_partials/_number.html.erb
@@ -5,6 +5,7 @@
     <%= t('libraries.manange_modal_column.number_type.decimals_label') %>
   </label>
   <div class="col-sm-3">
-    <%= number_field_tag('decimals', selected_decimals, in: 0...101, class: 'form-control') %>
+    <%= number_field_tag('decimals', selected_decimals, in: 0...Constants::REPOSITORY_NUMBER_TYPE_MAX_DECIMALS,
+                         class: 'form-control') %>
   </div>
 </div>
diff --git a/config/initializers/constants.rb b/config/initializers/constants.rb
index a71b9d7c7..9409c76cd 100644
--- a/config/initializers/constants.rb
+++ b/config/initializers/constants.rb
@@ -976,6 +976,7 @@ class Constants
   EXPORTABLE_ZIP_EXPIRATION_DAYS = 7
 
   REPOSITORY_LIST_ITEMS_PER_COLUMN = 500
+  REPOSITORY_NUMBER_TYPE_MAX_DECIMALS = 11
 
   REPOSITORY_LIST_ITEMS_DELIMITERS_MAP = {
     return: "\n",
diff --git a/db/migrate/20191204112549_create_repository_number_value.rb b/db/migrate/20191204112549_create_repository_number_value.rb
index 5ecd0c113..b67624e39 100644
--- a/db/migrate/20191204112549_create_repository_number_value.rb
+++ b/db/migrate/20191204112549_create_repository_number_value.rb
@@ -9,8 +9,5 @@ class CreateRepositoryNumberValue < ActiveRecord::Migration[6.0]
 
       t.timestamps
     end
-
-    # add jsonb column for repository columns metadata
-    add_column :repository_columns, :metadata, :jsonb, default: {}, null: false
   end
 end
diff --git a/db/migrate/20191210103004_add_metadata_to_repository_column.rb b/db/migrate/20191210103004_add_metadata_to_repository_column.rb
new file mode 100644
index 000000000..de674f6b7
--- /dev/null
+++ b/db/migrate/20191210103004_add_metadata_to_repository_column.rb
@@ -0,0 +1,7 @@
+# frozen_string_literal: true
+
+class AddMetadataToRepositoryColumn < ActiveRecord::Migration[6.0]
+  def change
+    add_column :repository_columns, :metadata, :jsonb, default: {}, null: false
+  end
+end