G'day:
I had had this article in draft for over a year, but never got around to writing it. Then Matt Bourke offered an idle challenge to me to write four blog articles before year-end (it's not 8pm in the UK yet, so plenty of time), and I found myself trawling through my draft-backlog for inspiration. I came across this article (well: an earlier version of it), but decided "nah, screw that... I missed the boat on that one, Railo's already done it".
But now I read on Twitter that Steven Neiland is suggesting an enhancement to it... and it's something I had a discussion about the last time I floated this idea for CFML (back in 2010: "<cfretry> / retry")...
Tuesday, 31 December 2013
3/4: The dumb things ColdFusion does
G'day:
Admission:
This is the article I alluded to a coupla weeks ago when I said this:
OOOPS. Got about 30sec away from pressing "publish" on a blog article... only to realise I was wrong in what I was saying. Dammit.
— Adam Cameron (@dacCfml) December 13, 2013
I promised Gavin I'd still release the article anyhow, so here it is. I have made it clear where I go wrong, so people don't get the idea I'm actually right in what I say here.
- Adam 31/12/2013
(2/4) ColdFusion: var hoisting can make a difference
G'day:
Remember a while back I observed that - like JavaScript - ColdFusion hoists its VAR declarations: "ColdFusion hoists VAR declarations". At the time I could not see how this could cause problems in CFML. Well I've noted a case where it does cause problems, in that it reveals a bug in ColdFusion 9 & 10.
I came across this ticket on the bug tracker: "cfloop array and wrong iterator", which details how ColdFusion 9 (and, as it turns out: 10) gets confused whilst array-looping in an edge-case situation. Check this out:
Remember a while back I observed that - like JavaScript - ColdFusion hoists its VAR declarations: "ColdFusion hoists VAR declarations". At the time I could not see how this could cause problems in CFML. Well I've noted a case where it does cause problems, in that it reveals a bug in ColdFusion 9 & 10.
I came across this ticket on the bug tracker: "cfloop array and wrong iterator", which details how ColdFusion 9 (and, as it turns out: 10) gets confused whilst array-looping in an edge-case situation. Check this out:
(1/4): it's not all about ColdFusion 10 bugs. CF 9.x has outstanding bugs too...
G'day:
First the "1/4" thing. Matt Bourke has just challenged me to release another four blog articles today. Let's see if I can do it. I make no apologies for the quality (or length) of the writing today. I'm not in the pub for one thing ;-)
This one is really short, but was underway before Matt challenged me.
First the "1/4" thing. Matt Bourke has just challenged me to release another four blog articles today. Let's see if I can do it. I make no apologies for the quality (or length) of the writing today. I'm not in the pub for one thing ;-)
This one is really short, but was underway before Matt challenged me.
Monday, 30 December 2013
Unit Testing / TDD: not testing stuff
G'day:
It's about bloody time I got back to this series on TDD and unit testing. I've already got the next few articles semi-planned in my head: topic, if not content. I have to say I am not in the most inspired writing mood today, and the words aren't exactly flowing from fingers through keyboard to screen - this is the third attempt at this paragraph - but we'll see how I go.
To find inspiration and to free up the fingers a bit, I'm at my local pub in Merlin Park in Galway, which - today - has shown its true colours as a football pub (to you Americans, that's "soccer". To me, it's "shite"). I've tried to like football, but it all just seems too effeminate to me. The place is chock-full of colours-wearing lads yelling at the screen. Either for or against one of Chelsea or Liverpool (the former lead 2-1 at half time). It's not conducive to writing, but the Guinness next to me will be.
I'll not list the previous articles in the series as it will take up too much room. They're all tagged with "TDD" and "unit testing" though.
On with the show...
It's about bloody time I got back to this series on TDD and unit testing. I've already got the next few articles semi-planned in my head: topic, if not content. I have to say I am not in the most inspired writing mood today, and the words aren't exactly flowing from fingers through keyboard to screen - this is the third attempt at this paragraph - but we'll see how I go.
To find inspiration and to free up the fingers a bit, I'm at my local pub in Merlin Park in Galway, which - today - has shown its true colours as a football pub (to you Americans, that's "soccer". To me, it's "shite"). I've tried to like football, but it all just seems too effeminate to me. The place is chock-full of colours-wearing lads yelling at the screen. Either for or against one of Chelsea or Liverpool (the former lead 2-1 at half time). It's not conducive to writing, but the Guinness next to me will be.
I'll not list the previous articles in the series as it will take up too much room. They're all tagged with "TDD" and "unit testing" though.
On with the show...
Friday, 27 December 2013
Glitch in ColdFusion's CFML parser
G'day:
This is not what I was meaning to write about today, but hey.
I'm on the second leg of my trip to Galway: Central Line › Piccadilly Line (which today is taking on some of the District Line stations too, just - I think - to make my journey even more shit) › sit around at LHR drinking Guinness (or waiting in the security queue, depending on how busy it is... it'll be busy, I reckon) › fly to Shannon › bus to Galway › another bus to the bit of Galway I actually want to go to. This'll all take about 7h. Bleah. I'm catching a bus today because the rental car rates were insane this weekend. Instead of the usual £50 for two days, Hertz wanted close to £300 for three days. I cannot afford that. So I'm busing (€20) to Galway, and catching a cab (€100) back on Mon. Anyway, the point being I've got a lot of time sitting around, so I'm "investigating".
Right... I don't want this to become to blogs what CFHour is to podcasts (50% waffle before it gets going), so... erm... CFML stuff...
This is not what I was meaning to write about today, but hey.
I'm on the second leg of my trip to Galway: Central Line › Piccadilly Line (which today is taking on some of the District Line stations too, just - I think - to make my journey even more shit) › sit around at LHR drinking Guinness (or waiting in the security queue, depending on how busy it is... it'll be busy, I reckon) › fly to Shannon › bus to Galway › another bus to the bit of Galway I actually want to go to. This'll all take about 7h. Bleah. I'm catching a bus today because the rental car rates were insane this weekend. Instead of the usual £50 for two days, Hertz wanted close to £300 for three days. I cannot afford that. So I'm busing (€20) to Galway, and catching a cab (€100) back on Mon. Anyway, the point being I've got a lot of time sitting around, so I'm "investigating".
Right... I don't want this to become to blogs what CFHour is to podcasts (50% waffle before it gets going), so... erm... CFML stuff...
Thursday, 26 December 2013
PDFs and Japanese and weirdness and bugs
G'day:
Here's one I was looking at on Stack Overflow today. It involves generating a PDF with Japanese text in it. I did not solve the issue. This doesn't surprise me too much, because I have never once generated a PDF in CFML in a production environment. I've just never had the need to. My entire exposure to <cfdocument> is in situations like this: investigation and "helping" other people.
Here's one I was looking at on Stack Overflow today. It involves generating a PDF with Japanese text in it. I did not solve the issue. This doesn't surprise me too much, because I have never once generated a PDF in CFML in a production environment. I've just never had the need to. My entire exposure to <cfdocument> is in situations like this: investigation and "helping" other people.
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