Add support for custom date fields in the entry table. See GitHub Issue

#3701.

INSTALL

@@ -176,10 +176,10 @@ as long as it is in the permitted set, ie a letter, number or underscore.
 restrictions on the characters allowed in order to simplify the code. For
 a technical explanation see below).
 
-At the moment only text, varchar, date (user table only), decimal/numeric,
-int, smallint and tinyint columns are  supported, displayed as textarea, text,
-date, number or checkbox fields as appropriate.  Whether a varchar is displayed
-as a text or textarea input depends on its maximum length, with the breakpoint
+At the moment only text, varchar, date, decimal/numeric, int, smallint and
+tinyint columns are  supported, displayed as textarea, text, date, number
+or checkbox fields as appropriate.  Whether a varchar is displayed as a text
+or textarea input depends on its maximum length, with the breakpoint
 determined by a configuration variable. Ints are treated as integer types, as
 you would expect.   However smallints and tinyints are assumed to be booleans
 and are displayed as checkboxes.

web/edit_entry.php

@@ -618,6 +618,10 @@ function get_field_custom(string $key, bool $disabled=false)
     // HTML5 does not allow a pattern attribute for the textarea element
     $class = 'FieldTextarea';
   }
+  elseif ($custom_field['type'] == 'date')
+  {
+    $class = 'FieldInputDate';
+  }
   // Otherwise check if it's an integer field
   elseif ((($custom_field['nature'] == 'integer') && ($custom_field['length'] > 2)) ||
           ($custom_field['nature'] == 'decimal'))