Handle strings in source mapped as numbers (#14318)

src/ui/public/directives/string_to_number.js

@@ -0,0 +1,13 @@
+import { uiModules } from 'ui/modules';
+const module = uiModules.get('kibana');
+
+module.directive('stringToNumber', function () {
+  return {
+    require: 'ngModel',
+    link: function (scope, element, attrs, ngModel) {
+      ngModel.$formatters.push((value) => {
+        return parseFloat(value);
+      });
+    }
+  };
+});

src/ui/public/filter_editor/params_editor/filter_params_input_type.html

@@ -12,6 +12,7 @@
   />
   <input
     ng-switch-when="number"
+    string-to-number
     type="number"
     placeholder="{{placeholder}}"
     step="any"

src/ui/public/filter_editor/params_editor/filter_params_input_type.js

@@ -2,6 +2,7 @@ import { uiModules } from 'ui/modules';
 import template from './filter_params_input_type.html';
 import '../../directives/validate_date_math';
 import '../../directives/validate_ip';
+import '../../directives/string_to_number';
 
 const module = uiModules.get('kibana');
 module.directive('filterParamsInputType', function () {