{
  "layout": "form", 
  "title": "Client Document",
  "table": "cust",
  "actions": "BIUD", 
  "roles": {"C_B":"B","C_X":"*"},
  "caption": [ "", "Customer", "Customers" ],
  "menu": "clients",
  "popup":[1000,700],
  "fields": [
    {"name":"cust_id", "type": "bigint", "actions":"B","key": 1,"control":"hidden"},

    {"name":"cust_doc","type":"file","actions":"BIU",
       "control":"file_upload","caption":"Client Document",
       "controlparams": { 
         "data_folder": "tutorials_cust_doc",
         "sqlparams": {"file_size":   "cust_doc_size",
                       "file_extension":    "cust_doc_ext",
                       "file_name":   "cust_doc_filename",
                       "file_upload_user":     "cust_doc_upuser",
                       "file_upload_timestamp": "cust_doc_uptstmp"
         },
         "download_button": "Download File",
         "upload_button": "Upload New File",
         "delete_button": "Delete File"
       }},
    {"name":"cust_doc_ext","type":"varchar","length":16,"actions":"B",
     "control":"label_VS","caption":"Extension","captionstyle":"width:72px;text-align:right;"},
	  {"name":"cust_doc_size","type":"bigint","actions":"B",
     "control":"label_S","caption":"Bytes"},
    {"name":"cust_doc_uptstmp","type":"datetime","length":7,"control":"hidden"},
    {"name":"cust_doc_upuser","type":"varchar","length": 20,"control":"hidden"},
    {"name":"cust_doc_filename","type":"varchar","sqlselect":"cust_id||cust_doc_ext","actions":"B","control":"hidden"}
    
  ]
}