Describe the issue
Item without datetime is allowed even if start_time and end_time are not set
Expected behavior
HTTP 400 should be returned if datetime is not set or null unless start_time and end_time are set and not null
Additional context
Since storing only spatial item without datetime is needed (e.g. geological layers), the datetime check should be an option to add in config.env (e.g. ALLOW_NULL_DATETIME set to false as default)
Describe the issue
Item without datetime is allowed even if start_time and end_time are not set
Expected behavior
HTTP 400 should be returned if datetime is not set or null unless start_time and end_time are set and not null
Additional context
Since storing only spatial item without datetime is needed (e.g. geological layers), the datetime check should be an option to add in config.env (e.g. ALLOW_NULL_DATETIME set to false as default)