2 files changed, 22 insertions, 3 deletions
diff --git a/addons/web/static/src/js/views/form_common.js b/addons/web/static/src/js/views/form_common.js
index 273da34f678..24c64aad7a4 100644
--- a/addons/web/static/src/js/views/form_common.js
+++ b/addons/web/static/src/js/views/form_common.js
@@ -715,7 +715,7 @@ var AbstractField = FormWidget.extend(FieldInterface, {
         }
     },
     _toggle_label: function() {
-        var empty = this.get('effective_readonly') && this.is_false();
+        var empty = this.get('effective_readonly') && !this.is_set();
         this.$label.toggleClass('o_form_label_empty', empty).toggleClass('o_form_label_false', this.get('effective_readonly') && this.get('value') === false);
         this.$el.toggleClass('o_form_field_empty', empty);
     },
@@ -754,10 +754,21 @@ var AbstractField = FormWidget.extend(FieldInterface, {
     /**
      * Method useful to implement to ease validity testing. Must return true if the current
      * value is similar to false in OpenERP.
+     * Used at write time, in particular when the field is required
      */
     is_false: function() {
         return this.get('value') === false;
     },
+
+    /**
+     *  Method called at rendering time to determine if the field should be
+     *  displayed (non-empty) or not (empty)
+     *  We test the same thing as is_false but with different semantics
+     */
+    is_set: function() {
+        return !this.is_false();
+    },
+
     _check_css_flags: function() {
         var show_translate = (!this.get('effective_readonly') && this.field_manager.get('actual_mode') !== "create");
         this.$translate.toggleClass('o_translate_active', !!show_translate);
diff --git a/addons/web/static/src/js/views/form_relational_widgets.js b/addons/web/static/src/js/views/form_relational_widgets.js
index 2517b3c57b8..e8e9c450c3c 100644
--- a/addons/web/static/src/js/views/form_relational_widgets.js
+++ b/addons/web/static/src/js/views/form_relational_widgets.js
@@ -346,8 +346,8 @@ var FieldMany2One = common.AbstractField.extend(common.CompletionFieldMixin, com
         if (!this.get("effective_readonly")) {
             this.$input.val(noValue ? "" : (str.split("\n")[0].trim() || $(data.noDisplayContent).text()));
             this.current_display = this.$input.val();
-            this.$follow_button.toggle(!this.is_false());
-            this.$el.toggleClass('o_with_button', !!this.$follow_button && this.$follow_button.length > 0 && !this.is_false());
+            this.$follow_button.toggle(this.is_set());
+            this.$el.toggleClass('o_with_button', !!this.$follow_button && this.$follow_button.length > 0 && this.is_set());
         } else {
             this.$el.html(noValue ? "" : (_.escape(str.trim()).split("\n").join("<br/>") || data.noDisplayContent));
             // Define callback to perform when clicking on the field
@@ -872,6 +872,10 @@ var FieldX2Many = AbstractManyField.extend({
     is_false: function() {
         return _(this.dataset.ids).isEmpty();
     },
+    is_set: function() {
+        // always consider that field is "set" hence displayed
+        return true;
+    },
 });
 
 var X2ManyDataSet = data.BufferedDataSet.extend({
@@ -1718,6 +1722,10 @@ var FieldMany2ManyCheckBoxes = AbstractManyField.extend(common.ReinitializeField
     is_false: function() {
         return false;
     },
+    is_set: function() {
+        // always consider that field is "set" hence displayed
+        return true;
+    },
 });
 
 core.form_widget_registry