Now we have a working version without any JS. Way easier to do because javascript form submit blows hot wads.

admin/handlers.go

@@ -3,8 +3,6 @@ package admin
 import (
   "maps"
   "strconv"
-  "fmt"
-  "reflect"
   "github.com/gofiber/fiber/v2"
   "zedshaw.games/webapp/data"
   . "zedshaw.games/webapp/common"
@@ -61,14 +59,16 @@ func GetPageSelectOne(c *fiber.Ctx) error {
 }
 
 func PostApiUpdate(c *fiber.Ctx) error {
-  user, err := ReceivePost[data.User](c)
+  table := c.Params("table")
+
+  typeOf := data.Models()[table]
+  obj, err := ReflectOnPost(typeOf, c)
   if err != nil { return IfErrNil(err, c) }
-  fmt.Println("post received", user)
 
-  err = Update(c.Params("table"), reflect.ValueOf(user).Elem())
+  err = Update(table, obj.Elem())
   if err != nil { return IfErrNil(err, c) }
 
-  return c.JSON(fiber.Map{"status": "ok"})
+  return c.RedirectBack("/admin/table/", 303)
 }
 
 func PutApiInsert(c *fiber.Ctx) error {

common/api.go

@@ -2,6 +2,7 @@ package common
 
 import (
   "log"
+  "reflect"
   "github.com/gofiber/fiber/v2"
    "github.com/go-playground/validator/v10"
 )
@@ -40,3 +41,26 @@ func ReceivePost[T any](c *fiber.Ctx) (*T, error) {
 
   return result, nil
 }
+
+func ReflectOnPost(typeOf reflect.Type, c *fiber.Ctx) (reflect.Value, error) {
+  var result_val reflect.Value
+
+  result_val = reflect.New(typeOf)
+  result := result_val.Interface()
+
+  if err := c.BodyParser(result); err != nil {
+    log.Println(err);
+    return result_val, err
+  }
+
+  var validate *validator.Validate
+  validate = validator.New(validator.WithRequiredStructEnabled())
+
+  if err := validate.Struct(result); err != nil {
+    validationErrors := err.(validator.ValidationErrors)
+    log.Println(validationErrors)
+    return result_val, err
+  }
+
+  return result_val, nil
+}

views/admin/table/view.html

@@ -1,17 +1,5 @@
 <script>
   let Data = new GetJson("/api/admin/table/{{ .Table }}/{{ .Id }}/");
-
-  const PostForm = async (url, data) => {
-    console.log("DATA", JSON.stringify(data));
-    return await fetch(url, {
-      method: "POST",
-      mode: "same-origin",
-      body: JSON.stringify(data),
-      headers: {
-        'Content-Type': 'application/json'
-      }
-    });
-  }
 </script>
 
 <blockstart>
@@ -25,14 +13,14 @@
       <template x-for="(value, key) in item">
         <div>
           <label x-text="key" x-bind:for="key"></label>
-          <input x-text="value" x-model="item[key]" x-bind:id="key" />
+          <input x-bind:name="key" x-text="value" x-model="item[key]" x-bind:id="key" />
         </div>
       </template>
     </middle>
     <bottom>
       <button-group>
         <button type="button">Back</button>
-        <button type="button" @click.prevent="PostForm('/api/admin/table/{{ .Table }}/{{ .Id }}/', item)">Update</button>
+        <button type="submit">Update</button>
         <button type="button" @click.prevent="console.log('DELETE', item.id)">Delete</button>
       </button-group>
     </bottom>