Fusebox 101: Using switch and case verbs
As part of my fusebox 101 updates I've decided to show how to use the switch and case verb in fusebox.
Here is the code you will need (you can easily spot the similarities):
Quick update to the TQL fusebox lexicon
Anyone using the TQL lexicon which a wrote about a while back should update it to use the following code:
<cfscript>
// usage inside other verbs: // <transfer:parameter
// name="paramName"
// value="someVal"
// dataType="date" />
if (fb_.verbInfo.executionMode is "start") {
// validate attributes // <parameter> must have a parent verb this lexicon: if (structKeyExists(fb_.verbInfo,"parent") and
fb_.verbInfo.parent.lexicon is fb_.verbInfo.lexicon and
listFind("delete,read,save,tql",fb_.verbInfo.parent.lexiconVerb) neq 0) {
// name - string - required if (not structKeyExists(fb_.verbInfo.attributes,"name")) {
fb_throw("fusebox.badGrammar.requiredAttributeMissing",
"Required attribute is missing",
"The attribute 'name' is required, for a 'parameter' verb in fuseaction #fb_.verbInfo.circuit#.#fb_.verbInfo.fuseaction#.");
}
// value - string - required if (not structKeyExists(fb_.verbInfo.attributes,"value")) {
fb_throw("fusebox.badGrammar.requiredAttributeMissing",
"Required attribute is missing",
"The attribute 'value' is required, for a 'parameter' verb in fuseaction #fb_.verbInfo.circuit#.#fb_.verbInfo.fuseaction#.");
}
// check to see if we're passing in a datatype if (structKeyExists(fb_.verbInfo.attributes,"dataType")) {
thisValue = '#fb_.verbInfo.attributes.value#,"#fb_.verbInfo.attributes.dataType#"';
}
else{
thisValue = fb_.verbInfo.attributes.value;
}
// add this parameter to the parent data: fb_.verbInfo.parent.parameters[fb_.verbInfo.attributes.name] = thisValue;
} else {
fb_throw("fusebox.badGrammar.parameterInvalidParent",
"Verb 'parameter' has invalid parent verb",
"Found 'parameter' verb with no valid parent verb in fuseaction #fb_.verbInfo.circuit#.#fb_.verbInfo.fuseaction#.");
}
}
</cfscript>
// usage inside other verbs: // <transfer:parameter
// name="paramName"
// value="someVal"
// dataType="date" />
if (fb_.verbInfo.executionMode is "start") {
// validate attributes // <parameter> must have a parent verb this lexicon: if (structKeyExists(fb_.verbInfo,"parent") and
fb_.verbInfo.parent.lexicon is fb_.verbInfo.lexicon and
listFind("delete,read,save,tql",fb_.verbInfo.parent.lexiconVerb) neq 0) {
// name - string - required if (not structKeyExists(fb_.verbInfo.attributes,"name")) {
fb_throw("fusebox.badGrammar.requiredAttributeMissing",
"Required attribute is missing",
"The attribute 'name' is required, for a 'parameter' verb in fuseaction #fb_.verbInfo.circuit#.#fb_.verbInfo.fuseaction#.");
}
// value - string - required if (not structKeyExists(fb_.verbInfo.attributes,"value")) {
fb_throw("fusebox.badGrammar.requiredAttributeMissing",
"Required attribute is missing",
"The attribute 'value' is required, for a 'parameter' verb in fuseaction #fb_.verbInfo.circuit#.#fb_.verbInfo.fuseaction#.");
}
// check to see if we're passing in a datatype if (structKeyExists(fb_.verbInfo.attributes,"dataType")) {
thisValue = '#fb_.verbInfo.attributes.value#,"#fb_.verbInfo.attributes.dataType#"';
}
else{
thisValue = fb_.verbInfo.attributes.value;
}
// add this parameter to the parent data: fb_.verbInfo.parent.parameters[fb_.verbInfo.attributes.name] = thisValue;
} else {
fb_throw("fusebox.badGrammar.parameterInvalidParent",
"Verb 'parameter' has invalid parent verb",
"Found 'parameter' verb with no valid parent verb in fuseaction #fb_.verbInfo.circuit#.#fb_.verbInfo.fuseaction#.");
}
}
</cfscript>
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Fusebox 101: myFusebox
Within fusebox you have access to the myFusebox CFC. This can help you get a lot of information about your fusebox app and it has some nice shortcuts to information, here are a couple I use a lot:
- #myFusebox.originalCircuit# - returns the original circuit in the request
- #myFusebox.originalFuseaction# - returns the original fuseaction in the request
What other do you use?
View the full list of functions on Sean Corfelds site
Fusebox 5.5 is ready for shipping
Sean Corfield has announced that fusebox 5.5 is ready for shipping and should appear on the fusebox.org website very soon.
Some of the updates in fusebox 5.5 are:
Fusebox 101: What's XFA all about?
I've just been chatting with someone about the XFA in verb for fusebox and I thought I would post my thoughts.
XFA stands for eXit FuseAction - this is where you store variables to be used in your web pages. The question here is, why use it?
Well imagine this, you have a login form that is used on your website. When a user goes to certain areas, you check to see if the user is logged in. If they are, then they will continue as normal, on the other hand they will need to login.
Being a great coder you don't want to have lots of forms all over the place, so you include one login form. This form then performs different actions depending on the what you need it to do.
Fusebox 101
I've been asked a few questions about fusebox recently and I've been happy to blog my responses but it's got me thinking, what would be nice is a fusebox 101 section. I've setup a fusebox 101 category, where I intend to post some fusebox posting with some of the more fundamental aspects of fusebox.
If you have any questions you would like to ask then please contact me and I'll post a response. In fact ask any questions and I'd be happy to answer.
To kick start check out the related posts below.
UPDATE: I'm wondering what peoples thoughts are on fusebox? Is it covered well, and what level of coverage do you think it has? Comments below please.
Different modes in Fusebox
I was asked today what the different modes in fusebox do. For those that don't know fusebox allows you to have 3 different modes (these can be changed in the fusebox.xml.cfm file).
Permissions attribute in fusebox
Here is an overview of the permissions attribute and how you can use it within fusebox.
From: http://halhelms.com/index.cfm?fuseaction=newsletters.show&issue=052203_rolesBasedSecurity
<circuit access="public" permission="useQuizBuilder">Fusebox itself does not apply any security check, but does make the values set in these attributes available to the programmer. It then becomes a simple matter of a few lines of code to write any challenge code you wish. For example, we might write a plugin to ensure that to use any fuseaction in the circuit, the user must have the useQuizBuilder permission. If the user wants to delete a quiz, s/he can now be challenged for the deleteQuiz key. The rules for permission binding can be stored and gotten from database table(s), XML files, .ini files, through the use of web services, etc.
<fuseaction name="deleteQuiz" permission="deleteQuiz">
...
</fuseaction>
One needs to create a plug-in to check if the permission set (or permissions made available) are matched by the current user – thus (plugins/listCheckSecurity.cfm):
Want to see the first public preview of Fusebox 5.5
This Thursday (2nd August 2007) Sean Corfield will be giving the world the first preview of fusebox 5.5. To find out more, and how you can attend visit cfFrameworks.com
