ns_queryexists(n) 4.99.30 naviserver "NaviServer Built-in Commands"

Name

ns_queryexists - Check for a key in the query data that was part of the HTTP request

Table Of Contents

• Table Of Contents
• Synopsis
• Description
• COMMANDS
• EXAMPLES
• See Also
• Keywords

Synopsis

Description

This command looks in the query data for the specified key. If the key exists, 1 is returned; otherwise 0 is returned. The key is interpreted in a case-insensitive manner.

COMMANDS

ns_queryexists key

EXAMPLES

 ns_register_proc POST /queryexiststest queryexiststest
 
 proc queryexiststest { } {
  if [ns_queryexists name] {
    # process the form
  } else {
    ns_returnerror 400 "need to supply your name in the form"
  }
 }

See Also

ns_getform, ns_query, ns_querygetall

Keywords

form, query