From a10a52dcb79220677e113f345fe3d1ca50800d48 Mon Sep 17 00:00:00 2001
From: Adriano Caloiaro <code@adriano.fyi>
Date: Thu, 20 Feb 2025 10:28:33 -0700
Subject: [PATCH] fix: single choice elements cannot be optionally required

---
 ui/common.templ     | 10 ++++++++++
 ui/common_templ.go  |  6 +++---
 ui/common_templ.txt |  2 +-
 3 files changed, 14 insertions(+), 4 deletions(-)

diff --git a/ui/common.templ b/ui/common.templ
index 55eecdb..1442722 100644
--- a/ui/common.templ
+++ b/ui/common.templ
@@ -100,6 +100,16 @@ templ Head(pageTitle string) {
 						let watchingField = watchingFields[i]
 						let match = false
 						var watcherFieldElement = document.getElementById(watchingField.id) // the actual element watching the field
+						// radio form elements such as "single choice" elements cannot get gotten by ID because they are
+						// radio button in a form group, all sharing a "name" attribute, rather than having one unique id
+						// like other input elements. Thus, when we cannot get a watching field by ID, we must be able to get it by
+						// name.
+						if (watcherFieldElement == null) {
+							radioFormElements = document.getElementsByName(watchingField.id)
+							if (radioFormElements.length > 0) {
+								watcherFieldElement = radioFormElements[0]
+							}
+						}
 						var watcherFieldContainerID = `field-container-${watchingField.id}` // the DOM element that contains the watching field
 						logic = watchingField.logic
 
diff --git a/ui/common_templ.go b/ui/common_templ.go
index 54a9516..744997d 100644
--- a/ui/common_templ.go
+++ b/ui/common_templ.go
@@ -464,7 +464,7 @@ func Head(pageTitle string) templ.Component {
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
-			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 28, "\"></script> <script type=\"text/javascript\">\n\t\t\t\thtmx.onLoad(function(content) {\n\t\t\t\t    var sortables = content.querySelectorAll(\".sortable\");\n\t\t\t\t    for (var i = 0; i < sortables.length; i++) {\n\t\t\t\t      var sortable = sortables[i];\n\t\t\t\t      var sortableInstance = new Sortable(sortable, {\n\t\t\t\t          animation: 150,\n\t\t\t\t\t\t  draggable: \".sortme\",\n\t\t\t\t          onMove: function (evt) {\n\t\t\t\t            return evt.related.className.indexOf('htmx-indicator') === -1;\n\t\t\t\t          },\n\t\t\t\t          onEnd: function (evt) {\n\t\t\t\t            this.option(\"disabled\", true);\n\t\t\t\t          }\n\t\t\t\t      });\n\t\t\t\t      // Re-enable sorting on the `htmx:afterSwap` event\n\t\t\t\t      sortable.addEventListener(\"htmx:afterSwap\", function() {\n\t\t\t\t        sortableInstance.option(\"disabled\", false);\n\t\t\t\t      });\n\t\t\t\t    }\n\t\t\t\t})\n\n\t\t\t\t// formValueChanged handles changes to user input in form fields\n\t\t\t\tfunction formValueChanged(fieldID, newValue) {\n\t\t\t\t\tvar formMetadata = JSON.parse(document.getElementById('form-metadata').getAttribute(\"data-data\"));\n\t\t\t\t\tif (formMetadata == null) {\n\t\t\t\t\t\treturn\n\t\t\t\t\t}\n\n\t\t\t\t\t// collect the fields that have logic monitoring the changed field \n\t\t\t\t\tvar watchingFields = Object.values(formMetadata.form.fields).filter(function(field) {\n\t\t\t\t\t\treturn field.logic != null && fieldID === field.logic.target_field_id\n\t\t\t\t\t});\n\n\t\t\t\t\t// no fields watch the one that changed\n\t\t\t\t\tif (watchingFields.length == 0) {\n\t\t\t\t\t\treturn\n\t\t\t\t\t}\n\t\t\t\t\tvar fieldElement = document.getElementById(fieldID)\n\t\t\t\t\tfor (i in watchingFields) {\n\t\t\t\t\t\tlet watchingField = watchingFields[i]\n\t\t\t\t\t\tlet match = false\n\t\t\t\t\t\tvar watcherFieldElement = document.getElementById(watchingField.id) // the actual element watching the field\n\t\t\t\t\t\tvar watcherFieldContainerID = `field-container-${watchingField.id}` // the DOM element that contains the watching field\n\t\t\t\t\t\tlogic = watchingField.logic\n\n\t\t\t\t\t\t// check whether the new value is coming from a Choices.js field, in which case the new value\n\t\t\t\t\t\t// is the array of chosen values, joined by commas, otherwise newValue is used as it was passed in\n\t\t\t\t\t\tif (fieldElement != null && fieldElement._choices != null) {\n\t\t\t\t\t\t\t// Choics.getValue() returns scalar for single selects and array for multi. Use Array.of\n\t\t\t\t\t\t\t// to treat everything it returns as an array\n\t\t\t\t\t\t\tnewValue = Array.of(fieldElement._choices.getValue(true)).join(',')\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// find if _any_ trigger values match the new value\n\t\t\t\t\t\tswitch (logic.field_comparator) {\n\t\t\t\t\t\t\tcase 'equal':\n\t\t\t\t\t\t\t\tmatch = watchingField.logic.trigger_values.every(val => newValue.localeCompare(val, 'en', {sensitivity: \"base\"}) == 0)\n\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t\tcase 'contains':\n\t\t\t\t\t\t\t\tmatch = watchingField.logic.trigger_values.some(val => newValue.toLowerCase().includes(val.toLowerCase()))\n\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t\tcase 'not':\n\t\t\t\t\t\t\t\tmatch = watchingField.logic.trigger_values.some(val => newValue.toLowerCase() !== val.toLowerCase())\n\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// Most actions are likely to be performed upon the containing element, such as show/hide/require.\n\t\t\t\t\t\t// This may of course change or be expanded, but for now, only the watcher field container is relevant\n\t\t\t\t\t\t// to applying actions.\n\t\t\t\t\t\tlet el = document.getElementById(watcherFieldContainerID)\n\t\t\t\t\t\tlet actions = watchingField.logic.actions\n\n\t\t\t\t\t\t// we have a match, execute the action\n\t\t\t\t\t\tfor (i in actions) {\n\t\t\t\t\t\t\tswitch (actions[i]) {\n\t\t\t\t\t\t\t\tcase \"field_logic_trigger_show\":\n\t\t\t\t\t\t\t\t\tif (match) {\n\t\t\t\t\t\t\t\t\t\tel.classList.remove(\"hidden\")\n\t\t\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\t\t\tel.classList.add(\"hidden\")\n\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t\t\tcase \"field_logic_trigger_require\":\n\t\t\t\t\t\t\t\t\tif (match) {\n\t\t\t\t\t\t\t\t\t\tel.classList.remove(\"hidden\")\n\t\t\t\t\t\t\t\t\t\twatcherFieldElement.setAttribute(\"required\", \"\")\n\t\t\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\t\t\tel.classList.add(\"hidden\")\n\t\t\t\t\t\t\t\t\t\twatcherFieldElement.removeAttribute(\"required\")\n\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t\tbreak\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t</script>")
+			templ_7745c5c3_Err = templruntime.WriteString(templ_7745c5c3_Buffer, 28, "\"></script> <script type=\"text/javascript\">\n\t\t\t\thtmx.onLoad(function(content) {\n\t\t\t\t    var sortables = content.querySelectorAll(\".sortable\");\n\t\t\t\t    for (var i = 0; i < sortables.length; i++) {\n\t\t\t\t      var sortable = sortables[i];\n\t\t\t\t      var sortableInstance = new Sortable(sortable, {\n\t\t\t\t          animation: 150,\n\t\t\t\t\t\t  draggable: \".sortme\",\n\t\t\t\t          onMove: function (evt) {\n\t\t\t\t            return evt.related.className.indexOf('htmx-indicator') === -1;\n\t\t\t\t          },\n\t\t\t\t          onEnd: function (evt) {\n\t\t\t\t            this.option(\"disabled\", true);\n\t\t\t\t          }\n\t\t\t\t      });\n\t\t\t\t      // Re-enable sorting on the `htmx:afterSwap` event\n\t\t\t\t      sortable.addEventListener(\"htmx:afterSwap\", function() {\n\t\t\t\t        sortableInstance.option(\"disabled\", false);\n\t\t\t\t      });\n\t\t\t\t    }\n\t\t\t\t})\n\n\t\t\t\t// formValueChanged handles changes to user input in form fields\n\t\t\t\tfunction formValueChanged(fieldID, newValue) {\n\t\t\t\t\tvar formMetadata = JSON.parse(document.getElementById('form-metadata').getAttribute(\"data-data\"));\n\t\t\t\t\tif (formMetadata == null) {\n\t\t\t\t\t\treturn\n\t\t\t\t\t}\n\n\t\t\t\t\t// collect the fields that have logic monitoring the changed field \n\t\t\t\t\tvar watchingFields = Object.values(formMetadata.form.fields).filter(function(field) {\n\t\t\t\t\t\treturn field.logic != null && fieldID === field.logic.target_field_id\n\t\t\t\t\t});\n\n\t\t\t\t\t// no fields watch the one that changed\n\t\t\t\t\tif (watchingFields.length == 0) {\n\t\t\t\t\t\treturn\n\t\t\t\t\t}\n\t\t\t\t\tvar fieldElement = document.getElementById(fieldID)\n\t\t\t\t\tfor (i in watchingFields) {\n\t\t\t\t\t\tlet watchingField = watchingFields[i]\n\t\t\t\t\t\tlet match = false\n\t\t\t\t\t\tvar watcherFieldElement = document.getElementById(watchingField.id) // the actual element watching the field\n\t\t\t\t\t\t// radio form elements such as \"single choice\" elements cannot get gotten by ID because they are\n\t\t\t\t\t\t// radio button in a form group, all sharing a \"name\" attribute, rather than having one unique id\n\t\t\t\t\t\t// like other input elements. Thus, when we cannot get a watching field by ID, we must be able to get it by\n\t\t\t\t\t\t// name.\n\t\t\t\t\t\tif (watcherFieldElement == null) {\n\t\t\t\t\t\t\tradioFormElements = document.getElementsByName(watchingField.id)\n\t\t\t\t\t\t\tif (radioFormElements.length > 0) {\n\t\t\t\t\t\t\t\twatcherFieldElement = radioFormElements[0]\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t\tvar watcherFieldContainerID = `field-container-${watchingField.id}` // the DOM element that contains the watching field\n\t\t\t\t\t\tlogic = watchingField.logic\n\n\t\t\t\t\t\t// check whether the new value is coming from a Choices.js field, in which case the new value\n\t\t\t\t\t\t// is the array of chosen values, joined by commas, otherwise newValue is used as it was passed in\n\t\t\t\t\t\tif (fieldElement != null && fieldElement._choices != null) {\n\t\t\t\t\t\t\t// Choics.getValue() returns scalar for single selects and array for multi. Use Array.of\n\t\t\t\t\t\t\t// to treat everything it returns as an array\n\t\t\t\t\t\t\tnewValue = Array.of(fieldElement._choices.getValue(true)).join(',')\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// find if _any_ trigger values match the new value\n\t\t\t\t\t\tswitch (logic.field_comparator) {\n\t\t\t\t\t\t\tcase 'equal':\n\t\t\t\t\t\t\t\tmatch = watchingField.logic.trigger_values.every(val => newValue.localeCompare(val, 'en', {sensitivity: \"base\"}) == 0)\n\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t\tcase 'contains':\n\t\t\t\t\t\t\t\tmatch = watchingField.logic.trigger_values.some(val => newValue.toLowerCase().includes(val.toLowerCase()))\n\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t\tcase 'not':\n\t\t\t\t\t\t\t\tmatch = watchingField.logic.trigger_values.some(val => newValue.toLowerCase() !== val.toLowerCase())\n\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// Most actions are likely to be performed upon the containing element, such as show/hide/require.\n\t\t\t\t\t\t// This may of course change or be expanded, but for now, only the watcher field container is relevant\n\t\t\t\t\t\t// to applying actions.\n\t\t\t\t\t\tlet el = document.getElementById(watcherFieldContainerID)\n\t\t\t\t\t\tlet actions = watchingField.logic.actions\n\n\t\t\t\t\t\t// we have a match, execute the action\n\t\t\t\t\t\tfor (i in actions) {\n\t\t\t\t\t\t\tswitch (actions[i]) {\n\t\t\t\t\t\t\t\tcase \"field_logic_trigger_show\":\n\t\t\t\t\t\t\t\t\tif (match) {\n\t\t\t\t\t\t\t\t\t\tel.classList.remove(\"hidden\")\n\t\t\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\t\t\tel.classList.add(\"hidden\")\n\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t\t\tcase \"field_logic_trigger_require\":\n\t\t\t\t\t\t\t\t\tif (match) {\n\t\t\t\t\t\t\t\t\t\tel.classList.remove(\"hidden\")\n\t\t\t\t\t\t\t\t\t\twatcherFieldElement.setAttribute(\"required\", \"\")\n\t\t\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\t\t\tel.classList.add(\"hidden\")\n\t\t\t\t\t\t\t\t\t\twatcherFieldElement.removeAttribute(\"required\")\n\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t\tbreak\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t</script>")
 			if templ_7745c5c3_Err != nil {
 				return templ_7745c5c3_Err
 			}
@@ -623,7 +623,7 @@ func ValidationErrors(errs types.ValidationErrors) templ.Component {
 				var templ_7745c5c3_Var32 string
 				templ_7745c5c3_Var32, templ_7745c5c3_Err = templ.JoinStringErrs(fmt.Sprintf("errors-%s", fieldID))
 				if templ_7745c5c3_Err != nil {
-					return templ.Error{Err: templ_7745c5c3_Err, FileName: `ui/common.templ`, Line: 214, Col: 46}
+					return templ.Error{Err: templ_7745c5c3_Err, FileName: `ui/common.templ`, Line: 224, Col: 46}
 				}
 				_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var32))
 				if templ_7745c5c3_Err != nil {
@@ -636,7 +636,7 @@ func ValidationErrors(errs types.ValidationErrors) templ.Component {
 				var templ_7745c5c3_Var33 string
 				templ_7745c5c3_Var33, templ_7745c5c3_Err = templ.JoinStringErrs(err.Error())
 				if templ_7745c5c3_Err != nil {
-					return templ.Error{Err: templ_7745c5c3_Err, FileName: `ui/common.templ`, Line: 216, Col: 18}
+					return templ.Error{Err: templ_7745c5c3_Err, FileName: `ui/common.templ`, Line: 226, Col: 18}
 				}
 				_, templ_7745c5c3_Err = templ_7745c5c3_Buffer.WriteString(templ.EscapeString(templ_7745c5c3_Var33))
 				if templ_7745c5c3_Err != nil {
diff --git a/ui/common_templ.txt b/ui/common_templ.txt
index 43272d1..9ce4eb2 100644
--- a/ui/common_templ.txt
+++ b/ui/common_templ.txt
@@ -25,7 +25,7 @@
 \" nonce=\"
 \" async></script> <script type=\"text/javascript\" src=\"
 \" nonce=\"
-\"></script> <script type=\"text/javascript\">\n\t\t\t\thtmx.onLoad(function(content) {\n\t\t\t\t    var sortables = content.querySelectorAll(\".sortable\");\n\t\t\t\t    for (var i = 0; i < sortables.length; i++) {\n\t\t\t\t      var sortable = sortables[i];\n\t\t\t\t      var sortableInstance = new Sortable(sortable, {\n\t\t\t\t          animation: 150,\n\t\t\t\t\t\t  draggable: \".sortme\",\n\t\t\t\t          onMove: function (evt) {\n\t\t\t\t            return evt.related.className.indexOf('htmx-indicator') === -1;\n\t\t\t\t          },\n\t\t\t\t          onEnd: function (evt) {\n\t\t\t\t            this.option(\"disabled\", true);\n\t\t\t\t          }\n\t\t\t\t      });\n\t\t\t\t      // Re-enable sorting on the `htmx:afterSwap` event\n\t\t\t\t      sortable.addEventListener(\"htmx:afterSwap\", function() {\n\t\t\t\t        sortableInstance.option(\"disabled\", false);\n\t\t\t\t      });\n\t\t\t\t    }\n\t\t\t\t})\n\n\t\t\t\t// formValueChanged handles changes to user input in form fields\n\t\t\t\tfunction formValueChanged(fieldID, newValue) {\n\t\t\t\t\tvar formMetadata = JSON.parse(document.getElementById('form-metadata').getAttribute(\"data-data\"));\n\t\t\t\t\tif (formMetadata == null) {\n\t\t\t\t\t\treturn\n\t\t\t\t\t}\n\n\t\t\t\t\t// collect the fields that have logic monitoring the changed field \n\t\t\t\t\tvar watchingFields = Object.values(formMetadata.form.fields).filter(function(field) {\n\t\t\t\t\t\treturn field.logic != null && fieldID === field.logic.target_field_id\n\t\t\t\t\t});\n\n\t\t\t\t\t// no fields watch the one that changed\n\t\t\t\t\tif (watchingFields.length == 0) {\n\t\t\t\t\t\treturn\n\t\t\t\t\t}\n\t\t\t\t\tvar fieldElement = document.getElementById(fieldID)\n\t\t\t\t\tfor (i in watchingFields) {\n\t\t\t\t\t\tlet watchingField = watchingFields[i]\n\t\t\t\t\t\tlet match = false\n\t\t\t\t\t\tvar watcherFieldElement = document.getElementById(watchingField.id) // the actual element watching the field\n\t\t\t\t\t\tvar watcherFieldContainerID = `field-container-${watchingField.id}` // the DOM element that contains the watching field\n\t\t\t\t\t\tlogic = watchingField.logic\n\n\t\t\t\t\t\t// check whether the new value is coming from a Choices.js field, in which case the new value\n\t\t\t\t\t\t// is the array of chosen values, joined by commas, otherwise newValue is used as it was passed in\n\t\t\t\t\t\tif (fieldElement != null && fieldElement._choices != null) {\n\t\t\t\t\t\t\t// Choics.getValue() returns scalar for single selects and array for multi. Use Array.of\n\t\t\t\t\t\t\t// to treat everything it returns as an array\n\t\t\t\t\t\t\tnewValue = Array.of(fieldElement._choices.getValue(true)).join(',')\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// find if _any_ trigger values match the new value\n\t\t\t\t\t\tswitch (logic.field_comparator) {\n\t\t\t\t\t\t\tcase 'equal':\n\t\t\t\t\t\t\t\tmatch = watchingField.logic.trigger_values.every(val => newValue.localeCompare(val, 'en', {sensitivity: \"base\"}) == 0)\n\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t\tcase 'contains':\n\t\t\t\t\t\t\t\tmatch = watchingField.logic.trigger_values.some(val => newValue.toLowerCase().includes(val.toLowerCase()))\n\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t\tcase 'not':\n\t\t\t\t\t\t\t\tmatch = watchingField.logic.trigger_values.some(val => newValue.toLowerCase() !== val.toLowerCase())\n\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// Most actions are likely to be performed upon the containing element, such as show/hide/require.\n\t\t\t\t\t\t// This may of course change or be expanded, but for now, only the watcher field container is relevant\n\t\t\t\t\t\t// to applying actions.\n\t\t\t\t\t\tlet el = document.getElementById(watcherFieldContainerID)\n\t\t\t\t\t\tlet actions = watchingField.logic.actions\n\n\t\t\t\t\t\t// we have a match, execute the action\n\t\t\t\t\t\tfor (i in actions) {\n\t\t\t\t\t\t\tswitch (actions[i]) {\n\t\t\t\t\t\t\t\tcase \"field_logic_trigger_show\":\n\t\t\t\t\t\t\t\t\tif (match) {\n\t\t\t\t\t\t\t\t\t\tel.classList.remove(\"hidden\")\n\t\t\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\t\t\tel.classList.add(\"hidden\")\n\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t\t\tcase \"field_logic_trigger_require\":\n\t\t\t\t\t\t\t\t\tif (match) {\n\t\t\t\t\t\t\t\t\t\tel.classList.remove(\"hidden\")\n\t\t\t\t\t\t\t\t\t\twatcherFieldElement.setAttribute(\"required\", \"\")\n\t\t\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\t\t\tel.classList.add(\"hidden\")\n\t\t\t\t\t\t\t\t\t\twatcherFieldElement.removeAttribute(\"required\")\n\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t\tbreak\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t</script>
+\"></script> <script type=\"text/javascript\">\n\t\t\t\thtmx.onLoad(function(content) {\n\t\t\t\t    var sortables = content.querySelectorAll(\".sortable\");\n\t\t\t\t    for (var i = 0; i < sortables.length; i++) {\n\t\t\t\t      var sortable = sortables[i];\n\t\t\t\t      var sortableInstance = new Sortable(sortable, {\n\t\t\t\t          animation: 150,\n\t\t\t\t\t\t  draggable: \".sortme\",\n\t\t\t\t          onMove: function (evt) {\n\t\t\t\t            return evt.related.className.indexOf('htmx-indicator') === -1;\n\t\t\t\t          },\n\t\t\t\t          onEnd: function (evt) {\n\t\t\t\t            this.option(\"disabled\", true);\n\t\t\t\t          }\n\t\t\t\t      });\n\t\t\t\t      // Re-enable sorting on the `htmx:afterSwap` event\n\t\t\t\t      sortable.addEventListener(\"htmx:afterSwap\", function() {\n\t\t\t\t        sortableInstance.option(\"disabled\", false);\n\t\t\t\t      });\n\t\t\t\t    }\n\t\t\t\t})\n\n\t\t\t\t// formValueChanged handles changes to user input in form fields\n\t\t\t\tfunction formValueChanged(fieldID, newValue) {\n\t\t\t\t\tvar formMetadata = JSON.parse(document.getElementById('form-metadata').getAttribute(\"data-data\"));\n\t\t\t\t\tif (formMetadata == null) {\n\t\t\t\t\t\treturn\n\t\t\t\t\t}\n\n\t\t\t\t\t// collect the fields that have logic monitoring the changed field \n\t\t\t\t\tvar watchingFields = Object.values(formMetadata.form.fields).filter(function(field) {\n\t\t\t\t\t\treturn field.logic != null && fieldID === field.logic.target_field_id\n\t\t\t\t\t});\n\n\t\t\t\t\t// no fields watch the one that changed\n\t\t\t\t\tif (watchingFields.length == 0) {\n\t\t\t\t\t\treturn\n\t\t\t\t\t}\n\t\t\t\t\tvar fieldElement = document.getElementById(fieldID)\n\t\t\t\t\tfor (i in watchingFields) {\n\t\t\t\t\t\tlet watchingField = watchingFields[i]\n\t\t\t\t\t\tlet match = false\n\t\t\t\t\t\tvar watcherFieldElement = document.getElementById(watchingField.id) // the actual element watching the field\n\t\t\t\t\t\t// radio form elements such as \"single choice\" elements cannot get gotten by ID because they are\n\t\t\t\t\t\t// radio button in a form group, all sharing a \"name\" attribute, rather than having one unique id\n\t\t\t\t\t\t// like other input elements. Thus, when we cannot get a watching field by ID, we must be able to get it by\n\t\t\t\t\t\t// name.\n\t\t\t\t\t\tif (watcherFieldElement == null) {\n\t\t\t\t\t\t\tradioFormElements = document.getElementsByName(watchingField.id)\n\t\t\t\t\t\t\tif (radioFormElements.length > 0) {\n\t\t\t\t\t\t\t\twatcherFieldElement = radioFormElements[0]\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t\tvar watcherFieldContainerID = `field-container-${watchingField.id}` // the DOM element that contains the watching field\n\t\t\t\t\t\tlogic = watchingField.logic\n\n\t\t\t\t\t\t// check whether the new value is coming from a Choices.js field, in which case the new value\n\t\t\t\t\t\t// is the array of chosen values, joined by commas, otherwise newValue is used as it was passed in\n\t\t\t\t\t\tif (fieldElement != null && fieldElement._choices != null) {\n\t\t\t\t\t\t\t// Choics.getValue() returns scalar for single selects and array for multi. Use Array.of\n\t\t\t\t\t\t\t// to treat everything it returns as an array\n\t\t\t\t\t\t\tnewValue = Array.of(fieldElement._choices.getValue(true)).join(',')\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// find if _any_ trigger values match the new value\n\t\t\t\t\t\tswitch (logic.field_comparator) {\n\t\t\t\t\t\t\tcase 'equal':\n\t\t\t\t\t\t\t\tmatch = watchingField.logic.trigger_values.every(val => newValue.localeCompare(val, 'en', {sensitivity: \"base\"}) == 0)\n\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t\tcase 'contains':\n\t\t\t\t\t\t\t\tmatch = watchingField.logic.trigger_values.some(val => newValue.toLowerCase().includes(val.toLowerCase()))\n\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t\tcase 'not':\n\t\t\t\t\t\t\t\tmatch = watchingField.logic.trigger_values.some(val => newValue.toLowerCase() !== val.toLowerCase())\n\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t}\n\n\t\t\t\t\t\t// Most actions are likely to be performed upon the containing element, such as show/hide/require.\n\t\t\t\t\t\t// This may of course change or be expanded, but for now, only the watcher field container is relevant\n\t\t\t\t\t\t// to applying actions.\n\t\t\t\t\t\tlet el = document.getElementById(watcherFieldContainerID)\n\t\t\t\t\t\tlet actions = watchingField.logic.actions\n\n\t\t\t\t\t\t// we have a match, execute the action\n\t\t\t\t\t\tfor (i in actions) {\n\t\t\t\t\t\t\tswitch (actions[i]) {\n\t\t\t\t\t\t\t\tcase \"field_logic_trigger_show\":\n\t\t\t\t\t\t\t\t\tif (match) {\n\t\t\t\t\t\t\t\t\t\tel.classList.remove(\"hidden\")\n\t\t\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\t\t\tel.classList.add(\"hidden\")\n\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t\tbreak;\n\t\t\t\t\t\t\t\tcase \"field_logic_trigger_require\":\n\t\t\t\t\t\t\t\t\tif (match) {\n\t\t\t\t\t\t\t\t\t\tel.classList.remove(\"hidden\")\n\t\t\t\t\t\t\t\t\t\twatcherFieldElement.setAttribute(\"required\", \"\")\n\t\t\t\t\t\t\t\t\t} else {\n\t\t\t\t\t\t\t\t\t\tel.classList.add(\"hidden\")\n\t\t\t\t\t\t\t\t\t\twatcherFieldElement.removeAttribute(\"required\")\n\t\t\t\t\t\t\t\t\t}\n\t\t\t\t\t\t\t\t\tbreak\n\t\t\t\t\t\t\t}\n\t\t\t\t\t\t}\n\t\t\t\t\t}\n\t\t\t\t}\n\t\t\t</script>
 </head>
 <!doctype html><html lang=\"eng\">
 <body><main>