Add field type selection

Signed-off-by: Roberto Rosario <roberto.rosario@mayan-edms.com>

mayan/apps/document_states/literals.py

@@ -9,3 +9,15 @@ WORKFLOW_ACTION_WHEN_CHOICES = (
     (WORKFLOW_ACTION_ON_ENTRY, _('On entry')),
     (WORKFLOW_ACTION_ON_EXIT, _('On exit')),
 )
+
+FIELD_TYPE_CHOICE_CHAR = 1
+FIELD_TYPE_CHOICE_INTEGER = 2
+FIELD_TYPE_CHOICES = (
+    (FIELD_TYPE_CHOICE_CHAR, _('Character')),
+    (FIELD_TYPE_CHOICE_INTEGER, _('Number (Integer)')),
+)
+
+FIELD_TYPE_MAPPING = {
+    FIELD_TYPE_CHOICE_CHAR: 'django.forms.CharField',
+    FIELD_TYPE_CHOICE_INTEGER: 'django.forms.IntegerField',
+}