Re: cfcomponent inheritance path
> Lets say for example I have a component called baseapp.cfc sitting in > the web root. I also have an application.cfc in a directory named > /blog. If I want the application.cfc to extend the baseapp.cfc, I have > to use the following syntax: > extends="/.baseapp" You shouldn't need the slash or the dot, just extends="baseapp", if it's in the web root. > Along the same lines of thought, is there a way to extend a component > without knowing it's exact location? Lets say that the blog directory > is now a subdirectory of /myapps. I want an application.cfc that is in > /myapps/blog/admin to extend the application.cfc sitting one level up > in /myapps/blog. I don't know if the blog directory is in the root of > the site, in myapps, or in some other location. All I know is that the > application.cfc I want to extend is one directory up. Is there a way > to do relative inheritance? > > I expect the answer is no. The answer is no, as you expected. Dave Watts, CTO, Fig Leaf Software http://www.figleaf.com/ http://training.figleaf.com/ Fig Leaf Software is a Veteran-Owned Small Business (VOSB) on GSA Schedule, and provides the highest caliber vendor-authorized instruction at our training centers, online, or onsit ~| Want to reach the ColdFusion community with something they want? Let them know on the House of Fusion mailing lists Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:331169 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
Re: cfcomponent inheritance path
On 26/02/2010 17:43, Judah McAuley wrote: > > And there is a quirk that I did not know. Interesting, I've never > before seen / in an inheritance declaration. Do you know if this > follows the Java standard or is this a CF-only thing? CF certainly. its a bit old but still relevant: http://corfield.org/blog/index.cfm/do/blog.entry/entry/Extending_Your_Root_Applicationcfc -- Yours, Kym Kovan mbcomms.net.au ~| Want to reach the ColdFusion community with something they want? Let them know on the House of Fusion mailing lists Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:331157 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
Re: cfcomponent inheritance path
And there is a quirk that I did not know. Interesting, I've never before seen / in an inheritance declaration. Do you know if this follows the Java standard or is this a CF-only thing? On Thu, Feb 25, 2010 at 10:40 PM, Michael Dinowitz wrote: > > That works until the cfc being extended (parent) has the same name as > the cfc doing the extending (child). If I have an application.cfc in > the blog directory and I want it to extend the application.cfc that's > in the root, I have to use "/.application" > > > On Fri, Feb 26, 2010 at 1:05 AM, Matt Quackenbush > wrote: >> >> When requesting a CFC (either by createObject() or extends=""), you must >> supply a dot-notated path that is absolute to the web root. For instance... >> >> - /wwwroot >> baseapp.cfc >> - - /blog >> myclass.cfc >> >> For /blog/myclass.cfc to extend /baseapp.cfc it would be... >> >> extends="baseapp" >> >> You could, of course, use a mapping, but that just makes a path outside the >> web root accessible (by CF internally) as though its residence was inside >> the web root. In other words, you'd still be calling an absolute path. >> >> The bottom line is, relative paths do not work with CFCs. >> >> HTH >> >> >> > > ~| Want to reach the ColdFusion community with something they want? Let them know on the House of Fusion mailing lists Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:331156 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
Re: cfcomponent inheritance path
That works until the cfc being extended (parent) has the same name as the cfc doing the extending (child). If I have an application.cfc in the blog directory and I want it to extend the application.cfc that's in the root, I have to use "/.application" On Fri, Feb 26, 2010 at 1:05 AM, Matt Quackenbush wrote: > > When requesting a CFC (either by createObject() or extends=""), you must > supply a dot-notated path that is absolute to the web root. For instance... > > - /wwwroot > baseapp.cfc > - - /blog > myclass.cfc > > For /blog/myclass.cfc to extend /baseapp.cfc it would be... > > extends="baseapp" > > You could, of course, use a mapping, but that just makes a path outside the > web root accessible (by CF internally) as though its residence was inside > the web root. In other words, you'd still be calling an absolute path. > > The bottom line is, relative paths do not work with CFCs. > > HTH > > > ~| Want to reach the ColdFusion community with something they want? Let them know on the House of Fusion mailing lists Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:331155 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
Re: cfcomponent inheritance path
On 26/02/2010 16:42, Michael Dinowitz wrote: > > I'm just looking for verification on what I know about extending cfcs > in the cfcomponent tag. > > Lets say for example I have a component called baseapp.cfc sitting in > the web root. I also have an application.cfc in a directory named > /blog. If I want the application.cfc to extend the baseapp.cfc, I was under the (possibly wrong) impression that the behaviour is different when dealing with application.cfc. -- Yours, Kym Kovan mbcomms.net.au ~| Want to reach the ColdFusion community with something they want? Let them know on the House of Fusion mailing lists Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:331154 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=11502.10531.4
Re: cfcomponent inheritance path
>> extends="/.baseapp" > > I haven't actually seen a forward slash used in any component paths, I > don't believe it is allowed. It should be a dot delimited path from > the webroot, so if your baseapp.cfc is in the directory blog under the > webroot, it should be referred to as blog.baseapp It's allowed and from what I know its the only way to reference a cfc sitting in the web root. My example had the baseapp.cfc sitting in the web root, not in a subdirectory. > However, this second part is where Dependency Injection frameworks come in. I'm updating my "From UDFs to CFCs" article to CF9 for the book and it deals with the core concepts. No frameworks (yet). ~| Want to reach the ColdFusion community with something they want? Let them know on the House of Fusion mailing lists Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:331153 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
Re: cfcomponent inheritance path
On Thu, Feb 25, 2010 at 9:42 PM, Michael Dinowitz wrote: > > I'm just looking for verification on what I know about extending cfcs > in the cfcomponent tag. > > Lets say for example I have a component called baseapp.cfc sitting in > the web root. I also have an application.cfc in a directory named > /blog. If I want the application.cfc to extend the baseapp.cfc, I have > to use the following syntax: > extends="/.baseapp" I haven't actually seen a forward slash used in any component paths, I don't believe it is allowed. It should be a dot delimited path from the webroot, so if your baseapp.cfc is in the directory blog under the webroot, it should be referred to as blog.baseapp > I didn't see anything in CF9 to change the need for this syntax. Is it > possible I missed something? Is there a better way other than creating > a mapping in the CF Admin or moving the extended file out of the root > dir? > > Along the same lines of thought, is there a way to extend a component > without knowing it's exact location? Lets say that the blog directory > is now a subdirectory of /myapps. I want an application.cfc that is in > /myapps/blog/admin to extend the application.cfc sitting one level up > in /myapps/blog. I don't know if the blog directory is in the root of > the site, in myapps, or in some other location. All I know is that the > application.cfc I want to extend is one directory up. Is there a way > to do relative inheritance? > > I expect the answer is no. > > Just double/triple/quadruple checking the basics of inheritance in ColdFusion. As far as I'm aware, CF only does inheritance the way you have covered, either through mappings or references relative to webroot. However, this second part is where Dependency Injection frameworks come in. With a DI framework (like Coldspring or Lightwire) you can set up aliases and pathing and such and just tell your objects "go fetch this thing and make sure that it is all properly set up". I use the DI container baked into Coldbox so I'm not 100% up to speed on the syntax for Coldspring and Lightwire, but I know they will do it. I should mention, however, that as far as I'm aware, DI frameworks don't really do inheritance, they do composition. There is a whole school of discussion much greater than I about the merits of inheritance vs composition, but most people seem to favor composition over inheritance when possible. So, depending on your particular situation, you might find that a framework like Coldspring will solve all your problems in a very elegant fashion without having to resort to inheritance. Cheers, Jud ~| Want to reach the ColdFusion community with something they want? Let them know on the House of Fusion mailing lists Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:331152 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
Re: cfcomponent inheritance path
When requesting a CFC (either by createObject() or extends=""), you must supply a dot-notated path that is absolute to the web root. For instance... - /wwwroot baseapp.cfc - - /blog myclass.cfc For /blog/myclass.cfc to extend /baseapp.cfc it would be... extends="baseapp" You could, of course, use a mapping, but that just makes a path outside the web root accessible (by CF internally) as though its residence was inside the web root. In other words, you'd still be calling an absolute path. The bottom line is, relative paths do not work with CFCs. HTH ~| Want to reach the ColdFusion community with something they want? Let them know on the House of Fusion mailing lists Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:331151 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
cfcomponent inheritance path
I'm just looking for verification on what I know about extending cfcs in the cfcomponent tag. Lets say for example I have a component called baseapp.cfc sitting in the web root. I also have an application.cfc in a directory named /blog. If I want the application.cfc to extend the baseapp.cfc, I have to use the following syntax: extends="/.baseapp" I didn't see anything in CF9 to change the need for this syntax. Is it possible I missed something? Is there a better way other than creating a mapping in the CF Admin or moving the extended file out of the root dir? Along the same lines of thought, is there a way to extend a component without knowing it's exact location? Lets say that the blog directory is now a subdirectory of /myapps. I want an application.cfc that is in /myapps/blog/admin to extend the application.cfc sitting one level up in /myapps/blog. I don't know if the blog directory is in the root of the site, in myapps, or in some other location. All I know is that the application.cfc I want to extend is one directory up. Is there a way to do relative inheritance? I expect the answer is no. Just double/triple/quadruple checking the basics of inheritance in ColdFusion. Thanks -- Michael Dinowitz ~| Want to reach the ColdFusion community with something they want? Let them know on the House of Fusion mailing lists Archive: http://www.houseoffusion.com/groups/cf-talk/message.cfm/messageid:331150 Subscription: http://www.houseoffusion.com/groups/cf-talk/subscribe.cfm Unsubscribe: http://www.houseoffusion.com/cf_lists/unsubscribe.cfm?user=89.70.4
