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onRequestStart
957
onRequestStart
Description
Runs when a request starts.
Syntax
<cffunction name="onRequestStart" returnType="boolean">
<cfargument type="String" name="
targetPage
" required=true/>
...
<cfreturn
Boolean
>
</cffunction>
See also
onRequest
,
onRequestEnd
,
Method summary
, “Managing requests in Application.cfc” in
ColdFusion MX Developer’s Guide
Parameters
ColdFusion MX passes the following parameters to the method:
Returns
A Boolean value. Return False to prevent ColdFusion from processing the request. You do not
need to explicitly return a True value if you omit the
cffunction
tag
returntype
attribute.
Usage
This method runs at the beginning of the request. It is useful for user authorization (login
handling), and for request-specific variable initialization, such as gathering performance statistics.
If this method throws an exception (for example, if it uses the
cfthrow
tag), ColdFusion handles
the error and does not process the request further.
If you call this method explicitly, ColdFusion does not start a request, but does execute the
method code.
This method can access the requested page’s Variables scope only if the Application.cfc file
includes an
onRequest
method that calls the page. You can use Request scope variables to share
data with the requested page even if Application.cfc does not have an
onRequest
method.
Example
This example uses the authentication code generated by the ColdFusion MX Dreamweaver Login
wizard to ensure that the user is logged in. For Beta 2, the wizard generates code that is
appropriate for Application.cfm only. To use this code with the Application.CFC, delete the
generated Application.CFM
<cffunction name="onRequestStart">
<cfargument name="requestname" required=true/>
<!--- Authentication code, generated by the Dreamweaver Login wizard.
<cfinclude template="mm_wizard_application_include.cfm">
Parameters
Description
targetPage
Path from the web root to the requested page.
Содержание COLFUSION MX 7-CFML
Страница 1: ...COLDFUSION MX7 CFML Reference...
Страница 20: ...20 Chapter 1 Reserved Words and Variables...
Страница 50: ...50 Chapter 2 ColdFusion Tags cfelse br Searching cfif cfloop cfif...
Страница 101: ...cfdefaultcase 101 cfdefaultcase cfswitch cfoutput Your grade is grade cfoutput...
Страница 115: ...cfdocumentsection 115 cfdocumentsection cfoutput cfdocument...
Страница 311: ...cfNTauthenticate 311 Please Try again H2 cfif cfoutput cfinclude template loginform cfm cfabort cfif cfif cflogin...
Страница 411: ...cftable 411 cftable body html...
Страница 515: ...Chr 515 maxlength 5 p input type Submit name input type RESET cfform...
Страница 605: ...GetEncoding 605 WriteOutput The encoding is theEncoding cfscript cfif...
Страница 629: ...GetProfileString 629 tr td input type Submit name Submit value Submit td td td tr table form...
Страница 655: ...IIf 655 cfoutput IIf Hour Now GTE 12 DE It is afternoon or evening DE It is morning cfoutput b...
Страница 664: ...664 Chapter 3 ColdFusion Functions cfelse h3 Conversion error h3 cfif...
Страница 687: ...IsStruct 687 cfoutput cfquery cfif cfoutput hr Employee Add Complete cfoutput cfcase cfswitch...
Страница 693: ...IsWDDX 693 struct data wddxPacket hr xmp cfoutput packet xmp IsWDDX returns IsWDDX packet br cfoutput...
Страница 751: ...LSDateFormat 751 hr noshade cfoutput cfloop...
Страница 861: ...StructFind 861 cfquery cfif cfoutput hr Employee Add Complete cfoutput cfcase cfswitch...
Страница 869: ...StructIsEmpty 869 cfoutput cfquery cfif cfoutput hr Employee Add Complete cfoutput cfcase cfswitch...
Страница 903: ...Val 903 value Is the beginning numeric name form...
Страница 932: ...932 Chapter 3 ColdFusion Functions...
Страница 944: ...944 Chapter 4 ColdFusion MX Flash Form Style Reference...
Страница 962: ...962 Chapter 5 Application CFC Reference...
Страница 1008: ...1008 Chapter 6 ColdFusion MX Event Gateway Reference cfset retValue Reason reason cfreturn retValue cffunction...
Страница 1054: ...1054 Chapter 6 ColdFusion MX Event Gateway Reference...