update component

administrator/forms/attachments.xml

@@ -0,0 +1,22 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<form>
+  <fields>
+    <field
+      name="path"
+      type="media"
+      label="File"
+      required="true"
+      preview="true"
+      types="documents"
+      directory="images/file" 
+    />
+    <field
+      name="title"
+      type="text"
+      label="Titolo"
+      required="false"
+      maxlength="190"
+      filter="string"
+    />
+  </fields>
+</form>

administrator/forms/circolare.xml

@@ -18,16 +18,17 @@
 
     <field name="description" type="editor" label="COM_CIRCOLARI_FORM_LBL_CIRCOLARE_DESCRIPTION"
       filter="safehtml" buttons="true" />
-    <field name="attachment" type="media" label="COM_CIRCOLARI_FORM_LBL_CIRCOLARE_ATTACHMENT"
-      directory="documents/circolari" preview="false" upload="true" />
     <field
-      name="allegato_titolo"
-      type="text"
-      label="Titolo allegato"
-      description="Nome leggibile mostrato accanto al file allegato"
-      filter="string"
+      name="attachments"
+      type="subform"
+      label="Allegati"
+      description="Aggiungi uno o più allegati alla circolare"
+      formsource="administrator/components/com_circolari/forms/attachments.xml"
+      multiple="true"
+      layout="joomla.form.field.subform.repeatable-table"
     />
 
+
     <field name="image" type="media" label="COM_CIRCOLARI_FORM_LBL_CIRCOLARE_IMAGE"
       directory="images" preview="true" upload="true" />