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Call function from other component.
Posted on 2012-03-27
Hello experts.
I have in my application file two createobject:
<cfset objcategories = CreateObject("component", "admin.com.categories").in
<cfset objhtaccess = CreateObject("component", "admin.com.createhtaccess"
The first one is handling all the categories stuff and the second is creating and updating the htaccess file.
Now if i add or update my categories i want to recreate this htaccess file.
f.e.
delete categorie:
<cfset qrydeletecategory = objcategories.fdeletecateg
cffunction:
<cffunction name="fdeletecategory" access="public" returntype="boolean">
<cfargument name="categoryid" type="numeric" required="yes">
<cfquery name = "DeleteCategory" datasource="#variables.dsn
DELETE FROM categories
WHERE CategoryID = <cfqueryparam cfsqltype="cf_sql_integer"
</cfquery>
<!--- CREATE HTACCESS AND SITEMAP ? --->
<cfreturn true>
</cffunction>
For creating the htaccess file:
<cfset qryhtaccess = objhtaccess.writehtaccess(
The question is.
Can i call the writehtaccess function inside the fdeletecategory function?
Is this the right way?
I have in my application file two createobject:
<cfset objcategories = CreateObject("component", "admin.com.categories").in
<cfset objhtaccess = CreateObject("component", "admin.com.createhtaccess"
The first one is handling all the categories stuff and the second is creating and updating the htaccess file.
Now if i add or update my categories i want to recreate this htaccess file.
f.e.
delete categorie:
<cfset qrydeletecategory = objcategories.fdeletecateg
cffunction:
<cffunction name="fdeletecategory" access="public" returntype="boolean">
<cfargument name="categoryid" type="numeric" required="yes">
<cfquery name = "DeleteCategory" datasource="#variables.dsn
DELETE FROM categories
WHERE CategoryID = <cfqueryparam cfsqltype="cf_sql_integer"
</cfquery>
<!--- CREATE HTACCESS AND SITEMAP ? --->
<cfreturn true>
</cffunction>
For creating the htaccess file:
<cfset qryhtaccess = objhtaccess.writehtaccess(
The question is.
Can i call the writehtaccess function inside the fdeletecategory function?
Is this the right way?
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5 Comments
yes you can do that, and you can do it this way:
<cfset objhtaccess = CreateObject("component", "admin.com.createhtaccess"
<cffunction name="fdeletecategory" access="public" returntype="boolean">
<cfset var qryhtaccess = objhtaccess.writehtaccess(
<cfargument name="categoryid" type="numeric" required="yes">
<cfquery name = "DeleteCategory" datasource="#variables.dsn
DELETE FROM categories
WHERE CategoryID = <cfqueryparam cfsqltype="cf_sql_integer"
</cfquery>
<!--- CREATE HTACCESS AND SITEMAP ? --->
<cfreturn true>
</cffunction>
now suppose you have a delete cfc and cfcomponent start and end and inside that you are doing all your functions, in the above case i showed, i have called another component of htaaccess, in a separate line.
you have two options here
1. use the code above as mine
2. if you do not want to create the objhtaaceess as i did, just use the extends attribute of cfcompoent tag and point it to the htaaccess cfc, this way it will inherit all the public methods of objhtaccess to your delete cfc and you ca use them anywhere like i did, but use inside the cffunction
Cheers
<cfset objhtaccess = CreateObject("component", "admin.com.createhtaccess"
<cffunction name="fdeletecategory" access="public" returntype="boolean">
<cfset var qryhtaccess = objhtaccess.writehtaccess(
<cfargument name="categoryid" type="numeric" required="yes">
<cfquery name = "DeleteCategory" datasource="#variables.dsn
DELETE FROM categories
WHERE CategoryID = <cfqueryparam cfsqltype="cf_sql_integer"
</cfquery>
<!--- CREATE HTACCESS AND SITEMAP ? --->
<cfreturn true>
</cffunction>
now suppose you have a delete cfc and cfcomponent start and end and inside that you are doing all your functions, in the above case i showed, i have called another component of htaaccess, in a separate line.
you have two options here
1. use the code above as mine
2. if you do not want to create the objhtaaceess as i did, just use the extends attribute of cfcompoent tag and point it to the htaaccess cfc, this way it will inherit all the public methods of objhtaccess to your delete cfc and you ca use them anywhere like i did, but use inside the cffunction
Cheers
Hi myselfrandhawa.
case 1.
I'm creating the objhtaccess in the application file. Do i have to create it again in the delete cfc ?
case 2.
...just use the extends attribute of cfcompoent tag and point it to the htaaccess cfc...
please explain this in more detail .
case 1.
I'm creating the objhtaccess in the application file. Do i have to create it again in the delete cfc ?
case 2.
...just use the extends attribute of cfcompoent tag and point it to the htaaccess cfc...
please explain this in more detail .
hmmm.
I made some tests and realized that i have to place the createobject in the cfc.
I need only a clarification for case 2.
I made some tests and realized that i have to place the createobject in the cfc.
I need only a clarification for case 2.
Active today
Can i call the writehtaccess function inside the fdeletecategory function?
Yes. If it's stateless, there are 3 choices
1) recreate the createhtaccess object every time you call the delete function
ie Use cfinvoke component="admin.com.creat
2) create a new instance inside init() and store it in the variables scope. That means you'll have only 2 instances instead of 1 each time you call the delete function
<cffunction name="init" ..>
<cfargument name="dsn" ...>
<cfset variables.dsn = arguments.dsn>
<cfset variables.htaccess = createObject("admin.com.cr
</cffunction>
3) pass the instance created inside your application file into init() as an argument. Then store it in the variables scope and use that object when you call delete. So you'll only have 1 instance in the entire application
<!--- create htaccess first --->
<cfset objhtaccess = CreateObject("component", "admin.com.createhtaccess"
<!--- pass it in as an argument --->
<cfset objcategories = CreateObject("component", "admin.com.categories").in
<!--- init function of admin.com.categories --->
<cffunction name="init" ..>
<cfargument name="dsn" ...>
<cfargument name="htaccess" ...>
<cfset variables.dsn = arguments.dsn>
<cfset variables.htaccess = arguments.htaccess>
</cffunction>
Use the variables scoped object inside your delete function
<!--- CREATE HTACCESS AND SITEMAP ? --->
<cfset variables.htaccess.callSom
I need only a clarification for case 2.
Honestly I wouldn't use the extends hack unless the components are truly related, which they don't seem to be. If they're not, better to keep them separate and pass in the component using one of the methods above. Preferably #2 or #3
Yes. If it's stateless, there are 3 choices
1) recreate the createhtaccess object every time you call the delete function
ie Use cfinvoke component="admin.com.creat
2) create a new instance inside init() and store it in the variables scope. That means you'll have only 2 instances instead of 1 each time you call the delete function
<cffunction name="init" ..>
<cfargument name="dsn" ...>
<cfset variables.dsn = arguments.dsn>
<cfset variables.htaccess = createObject("admin.com.cr
</cffunction>
3) pass the instance created inside your application file into init() as an argument. Then store it in the variables scope and use that object when you call delete. So you'll only have 1 instance in the entire application
<!--- create htaccess first --->
<cfset objhtaccess = CreateObject("component", "admin.com.createhtaccess"
<!--- pass it in as an argument --->
<cfset objcategories = CreateObject("component", "admin.com.categories").in
<!--- init function of admin.com.categories --->
<cffunction name="init" ..>
<cfargument name="dsn" ...>
<cfargument name="htaccess" ...>
<cfset variables.dsn = arguments.dsn>
<cfset variables.htaccess = arguments.htaccess>
</cffunction>
Use the variables scoped object inside your delete function
<!--- CREATE HTACCESS AND SITEMAP ? --->
<cfset variables.htaccess.callSom
I need only a clarification for case 2.
Honestly I wouldn't use the extends hack unless the components are truly related, which they don't seem to be. If they're not, better to keep them separate and pass in the component using one of the methods above. Preferably #2 or #3
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