[sorry for the broken References - I've just joined the list and am
replying to a post in the archives]
On Sat, 15 Jun 2002, Perrin Harkins said:
An Object-Relational mapper takes objects and stores them in a relational
database, as transparently as possible. I think the most pure example of
Tony Bowden wrote:
I'd have to disagree. Maybe Mike had something different in mind when he
created Class::DBI, but as the current active developer on it, I'm
definitely pushing it in the R-O direction. Like Dave, I always start by
thinking of my database schema and then Class::DBI provides a
WO is amazing, no two ways about it. Once you use it, everything else
sucks. There are no exceptions.
That's kind of a rude statement to make on this list, where all of these
people are offering free software and support to you.
It's been a few years since I last evaluated WebObjects, but
My general motto is tiers eq tears ... I've never seen
a really comfortable OO/SQL bridge.
So who's talking about an OO/SQL bridge? Not me. At least not an
automatic one. I write the SQL by hand.
Group bys, order bys, multi-table selects, locking, SQL query
plans and index optimisation
This approach works for some things, but I think it falls down when it
comes to doing complex database searches, particularly searches
generated
ad-hoc on multiple columns in multiple tables.
In general, the user interface you provide for a search will be much
higher-level than the SQL that
An Object-Relational mapper takes objects and stores them in a
relational
database, as transparently as possible. I think the most pure example
of
this I've seen in the Perl world is Tangram
(www.tangram-persistence.org).
SPOPS is also an O-R mapper (actually, its a generic Object
Perrin al
Once you use it, everything else
sucks. There are no exceptions.
That's kind of a rude statement to make on this list, where all of these
people are offering free software and support to you.
Ah, you're right; I actually never meant that as a slight against things
mod_perl; I
Not quite sure what you mean here. The general WO request-response
loop is
1 Process request
2 Perform action
3 Return response
Step 3 is entirely dependent on the previous two, just like any
mod_perl/CGI/php app.
The introductory documentation makes it look each URL is tied to a
A) a ridiculously flexible interface that looks sort of like SQL, except
where it is SQL, except where it's only sort of like SQL, etc.
B) a ridiculous profusion of classes, methods, or both.
SQL has its place, and Alzabo merely provides a thin layer on top of it.
Trying to jam a thick
On Fri, 14 Jun 2002, Nigel Hamilton wrote:
A) a ridiculously flexible interface that looks sort of like SQL, except
where it is SQL, except where it's only sort of like SQL, etc.
B) a ridiculous profusion of classes, methods, or both.
SQL has its place, and Alzabo merely provides a
On Fri, 14 Jun 2002, Nigel Hamilton wrote:
Generally I try to minimise the layers/tiers/abstraction between
the front-end and the database - for me OO/SQL abstraction is something
akin to 'GOTO considered harmful'.
I think there's room for middle ground here between mapping OO directly
On Fri, 14 Jun 2002 10:34:47 +0100 (BST)
Mark Fowler [EMAIL PROTECTED] wrote:
: On Fri, 14 Jun 2002, Nigel Hamilton wrote:
:
: Generally I try to minimise the layers/tiers/abstraction between
: the front-end and the database - for me OO/SQL abstraction is something
: akin to 'GOTO
Generally I try to minimise the layers/tiers/abstraction between
the front-end and the database - for me OO/SQL abstraction is something
akin to 'GOTO considered harmful'.
HI Mark,
I'm not sure about a monolithic SQL factory module like the one
you describe. Generally, each
At 12:22 AM -0500 6/14/02, Dave Rolsky wrote:
An Object-Relational mapper takes objects and stores them in a relational
database, as transparently as possible. I think the most pure example of
this I've seen in the Perl world is Tangram (www.tangram-persistence.org).
SPOPS is also an O-R mapper
The Pet Shop has a grand total of 13 tables.
How well does this approach work with 90 tables? How does it handle
arbitrary queries that may join 1-6 tables, with conditionals and
sorting of arbitrary complexity?
Where I work we have over 90 tables and it works fine. We don't run a
At 10:59 AM 6/14/02 -0400, kyle dawkins wrote:
As for people claiming never to have seen an OR system that works, I
suggest you check out EOF from NeXT/Apple.
For those of you (like me) who didn't know what EOF is, it stands for
Enterprise Object Framework and is part of Apple's WebObjects app
Drew is correct, EOF stands for Enterprise Object Framework.
However, it's not part of the WebObjects app server... it predates WO
by a long time (I think it's about 9 or 10 years old) happens to come
with WO but is completely separate from it.
On Friday 14 June 2002 11:27, Drew Taylor
On Fri, 14 Jun 2002, kyle dawkins wrote:
bigger system, but I would also caution people to say that if you find
yourself doing joins across up to 6 tables, you're almost certainly
doing something wrong from the start and, basically, you're fooked
because of shitty design, and O/R or R/O
Fran,
I think the key here is taking care of the 80% easily. This has been
mentioned in this thread several times, and in previous threads. No, I
don't think there will ever be an (efficient) wrapper that can handle ALL
the cases and ALL the possible SQL queries. But if you can handle the
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On Thursday 13 June 2002 6:20 am, Rob Nagler wrote:
Matt Sergeant writes:
This assumes you need XML in the first place.
No, it does not. The rest of my post spoke about XML as a
data format and set of tools, not as a syntax. Please stop
-Original Message-
From: Perrin Harkins [mailto:[EMAIL PROTECTED]]
Sent: 13 June 2002 03:43
To: Fran Fabrizio; [EMAIL PROTECTED]
Subject: Re: separating C from V in MVC
2. Does the first part of my code above even remotely resemble a
Controller?
Sort of. It does choose
Ok so Collections was the missing piece in my puzzle. Very interesting
(and intuitive now that you present it to me).
Controller:
---
my $Stale = Model::WatchCollection-new( status = 'stale' );
Controller:
---
my $WC= Model::WatchCollection-new();
Out of these two, I
I just wanted to comment on Number 3, here. Scroll down ;-)
kyle dawkins wrote:
Fran (et al)
I've stayed out of the MVC chitchat for a long time (very interesting
thread) because it's such a deep topic. But seeing as how Fran has
some concrete questions...
3. How do you prevent a
Fran
Out of these two, I would think that the first one is actually
better. What if you have 300,000 watches and only 25 are stale, for
example (numbers that are not all that far from the truth, in my
case)? That'd be a lot of data I'd be slinging around in the 2nd
example. Which is
-Original Message-
From: Fran Fabrizio [mailto:[EMAIL PROTECTED]]
Sent: 13 June 2002 13:23
To: Jeff AA
Cc: [EMAIL PROTECTED]
Subject: RE: separating C from V in MVC
Controller:
---
my $Stale = Model::WatchCollection-new( status = 'stale' );
Controller
Fran Fabrizio wrote:
Now, how do you represent in the model a
complex query that joins across 5 of the nouns?
Others have already commented on this, but I want to point out that this
is a general OO modelling question, not an MVC one, and there are many
resources available to help you learn
On 6/13/02 1:29 PM, Perrin Harkins wrote:
Just be careful that you don't end up making this into something that
mirrors the SQL exactly. There might be 4 tables involved in finding
out what kind of credit card the user had, but that gets hidden behind
this API. If you find yourself writing
On Thu, 13 Jun 2002, Perrin Harkins wrote:
As you can see it gets messy fast, and I didn't even cover the
Mastercard part. It would probably have terruble performance too. This
is why people usually just write this kind of report as a big SQL query
instead. You can make a model object
Dave Rolsky writes:
Trying to jam a thick layer of OO-goodness over relational data is asking
for a mess.
Most OLTP applications share a lot in common. The user inputs data in
forms. The fields they edit often correspond one-to-one with database
fields, and certainly their types. The user
On Thu, 13 Jun 2002, Rob Nagler wrote:
Most OLTP applications share a lot in common. The user inputs data in
forms. The fields they edit often correspond one-to-one with database
fields, and certainly their types. The user wants reports which are
usually closely mapped to a
At 12:58 PM 6/14/2002, Dave Rolsky wrote:
On Thu, 13 Jun 2002, Rob Nagler wrote:
I'm not a big fan of O/R. I prefer R/O. But to each their own.
Would one of you mind providing a 1 paragraph definition of each? I am
afraid that I am starting to get lost in the semantic differences of
On Fri, 14 Jun 2002, Gunther Birznieks wrote:
Would one of you mind providing a 1 paragraph definition of each? I am
afraid that I am starting to get lost in the semantic differences of
controllers and actions and O/R, R/O?
Well, here's my take on it.
An Object-Relational mapper takes
Shop demostrates how you can build a simple application with only a
couple of custom SQL queries. The rest are simple joins and CRUD. If
you need more complex queries, there are escapes. You still probably
end up with a list of tuples for your reports. The key we have found
is
Dave Rolsky writes:
The Pet Shop has a grand total of 13 tables.
How well does this approach work with 90 tables?
Works fine with bivio.com, which has 50 tables.
How does it handle arbitrary queries that may join 1-6 tables,
with conditionals and sorting of arbitrary complexity?
The
On Fri, 14 Jun 2002, Fran Fabrizio wrote:
How well does this approach work with 90 tables? How does it handle
arbitrary queries that may join 1-6 tables, with conditionals and sorting
of arbitrary complexity?
I'd have to agree, most of the real-world scenarios I have run across do
not
On Wednesday 12 June 2002 4:09 am, Rob Nagler wrote:
Matt Sergeant writes:
There's quite a few things that are a lot harder to do with XML in
plain perl (especially in SAX) than they are in XSLT.
This assumes you need XML in the first place.
No, it does not. The rest of my post spoke
Ok, thanks to you all and this great discussion I want to try to make
our current project into an MVC-style app, so what now? This MVC
discussion could not have come at a better time - our little app is all
grown up now and needs a real architecture. I have read the MVC threads
in depth
From: Fran Fabrizio [mailto:[EMAIL PROTECTED]]
Sent: 12 June 2002 21:48
Nothing indepth, just a quick response, but it looks like your huge if
statement can be replaced using a hash. Maybe something like:
# just an eg, this data is static and can be required from
# your startup.pl so that
On Jun 12 Jeff wrote:
From: Fran Fabrizio [mailto:[EMAIL PROTECTED]]
Sent: 12 June 2002 21:48
Nothing indepth, just a quick response ...
I too am using mod_perl just for Apache::Registry, and would also like to
look for alternatives.
Answers the questions posed by Fran would also
Fran (et al)
I've stayed out of the MVC chitchat for a long time (very interesting
thread) because it's such a deep topic. But seeing as how Fran has
some concrete questions...
3. How do you prevent a Controller from just becoming another big if
statement, or is this their purpose in
Wow, this is a long one. As usual, everyone has slightly different
ideas about how to do MVC, so keep a grain of salt handy.
This basic pattern repeated ad infinitum. It's grown way out of
control, is a pain to work with, and just feels wrong, very wrong. :-)
We've all been there.
1. Is
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On Monday 10 June 2002 11:23 pm, Vuillemot, Ward W wrote:
: Really interesting, xml
: appears to be
: the final destination for most of us, even if now i
: prefer objects.
:
: Ciao, Valerio
That is my big question. Is
From: Rob Nagler [mailto:[EMAIL PROTECTED]]
Sent: 10 June 2002 20:41
... a Facade is the front face of the web site which includes colors,
text, URLs, etc. All the other MVC components talk to the currently
selected Facade when they need these values.
The controller calls
On Mon, 2002-06-10 at 13:29, Ray Zimmerman wrote:
So how is everybody else handling URL mapping? Do others group this
kind of data together with fonts, colors, etc? And where do you
define it?
As Perrin mentioned, OpenInteract does this by allowing individual
packages (distributable
On Tuesday, June 11, 2002, at 01:37 PM, Chris Winters wrote:
On Mon, 2002-06-10 at 13:29, Ray Zimmerman wrote:
So how is everybody else handling URL mapping? Do others group this
kind of data together with fonts, colors, etc? And where do you
define it?
A single mod_perl handler catches
I know we are straying WOT, but I would love to get a better feel for XML, XSLT and
AxKit. There are a lot of different systems out there. . .and part of me wants to
just do it my way (in large part to learn), but I also realize that I really want to
get to the business of also being
On Tue, 11 Jun 2002, Ward Vuillemot wrote:
I know we are straying WOT, but I would love to get a better feel for
XML, XSLT and AxKit. There are a lot of different systems out there. .
.and part of me wants to just do it my way (in large part to learn), but
I also realize that I really want
Ward Vuillemot wrote:
I know we are straying WOT, but I would love to get a better feel for XML, XSLT and
AxKit.
Barrie Slaymaker has written a couple of articles on perl.com that serve
as a good intro to AxKit.
- Perrin
John Hurst wrote:
Still, I don't think that replacing this:
Location /search
SetHandler perl-script
PerlHandler Controller::Search
/Location
with this:
[% Ctrl.Search() %]
makes Controller::Search any less a controller.
You're right. It just looks kind of odd to me,
On 6/11/02 12:46 PM, Perrin Harkins wrote:
John Hurst wrote:
Still, I don't think that replacing this:
Location /search
SetHandler perl-script
PerlHandler Controller::Search
/Location
with this:
[% Ctrl.Search() %]
makes Controller::Search any less a controller.
You're
On Tue, 11 Jun 2002, John Siracusa wrote:
You're right. It just looks kind of odd to me, invoking a template for
something that is not a display-related task. It looks like the way
people typically do MVC in Mason or Embperl, with a first template that
doesn't do anything but invoke a
At 01:01 PM 06/11/02 -0400, John Siracusa wrote:
On 6/11/02 12:46 PM, Perrin Harkins wrote:
John Hurst wrote:
Still, I don't think that replacing this:
Location /search
SetHandler perl-script
PerlHandler Controller::Search
/Location
with this:
[% Ctrl.Search() %]
makes
[% Ctrl.Search() %]
makes Controller::Search any less a controller.
You're right. It just looks kind of odd to me, invoking a template for
something that is not a display-related task. It looks like the way
people typically do MVC in Mason or Embperl, with a first template that
Two good books could be written on these subjects:
* Mastering Design Patterns with Perl (I understand that Mastering
Algorithms with Perl sells quite well)
* Rapid Web Application Development with Perl
The second one would describe the various application frameworks available,
and related
Gerald Richter wrote:
Embperl 2.0 can invoke such a controller (it's called application object
there) after it has setup it's request parameters (GET/POST data, session
data, etc.) and before any templates are get a chance to run.
That sounds like a good addition to Embperl. Can you give a
Matt Sergeant writes:
There's quite a few things that are a lot harder to do with XML in
plain perl (especially in SAX) than they are in XSLT.
This assumes you need XML in the first place.
It's trivial to manipulate Perl data structures in Perl. It's
also easy to manipulate XML in Perl.
Gerald Richter wrote:
Embperl 2.0 can invoke such a controller (it's called application object
there) after it has setup it's request parameters (GET/POST data,
session
data, etc.) and before any templates are get a chance to run.
That sounds like a good addition to Embperl. Can you
PROTECTED]]
: Sent: Friday, June 07, 2002 4:49 PM
: To: Bill Moseley
: Cc: [EMAIL PROTECTED]
: Subject: Re: [OT] MVC soup (was: separating C from V in MVC)
:
:
: Quoting Bill Moseley ([EMAIL PROTECTED]):
: I, like many, find these discussion really interesting
At 12:02 AM -0600 6/6/02, Rob Nagler wrote:
To solve this problem, we added a letter. bOP is MVCF, where F stands
for Facade. A Facade allows you to control icons, files, colors,
fonts, text, and tasks. You can add other components, but we usually
use text as a catch all, e.g. numeric formats.
Ray Zimmerman wrote:
So how is everybody else handling URL mapping?
In httpd.conf:
Location /search
SetHandler perl-script
PerlHandler Controller::Search
/Location
Location /cart
SetHandler perl-script
PerlHandler Controller::ShoppingCart
/Location
Most applications only have a
Ray Zimmerman wrote:
So how is everybody else handling URL mapping?
In the filesystem. Directly requested .tt files are all sent to a
default template handler:
Location /tt_engine
SetHandler perl-script
PerlHandler UAL::TTEngine
/Location
AddType text/tt .tt
Action text/tt /tt_engine
The
Ray Zimmerman wrote:
So how is everybody else handling URL mapping?
On Mon, 10 Jun 2002, John Hurst wrote:
In the filesystem. Directly requested .tt files are all sent to a
default template handler:
[...]
% cat admin/proj-edit.tt
[% Ctrl.DBEdit.run(ObjectType = 'Project') %]
I used html
Valerio_Valdez Paolini wrote:
On Mon, 10 Jun 2002, John Hurst wrote:
In the filesystem. Directly requested .tt files are all sent to a
default template handler:
...
I used html pages with augmented tags parsed by a standard handler:
Those are both interesting and may be the most
Valerio_Valdez Paolini [EMAIL PROTECTED] wrote:
Ray Zimmerman wrote:
So how is everybody else handling URL mapping?
On Mon, 10 Jun 2002, John Hurst wrote:
In the filesystem. Directly requested .tt files are all sent to a
default template handler:
[...]
% cat admin/proj-edit.tt
[%
On Mon, 10 Jun 2002, Perrin Harkins wrote:
Those are both interesting and may be the most appropriate solution for
the problems you're working on, but I wouldn't call either of them MVC.
You are going straight to a view (template) and letting it drive all
the decisions. In an MVC
On Mon, 10 Jun 2002, James G Smith wrote:
I'm working on a framework that will use the Mason component as the
controller, Perl modules as the model, and either Mason components or
TT templates called from the controller as the view. The view would
output XML that would then be put through
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On Monday 10 June 2002 11:09 pm, Valerio_Valdez Paolini wrote:
On Mon, 10 Jun 2002, James G Smith wrote:
I'm working on a framework that will use the Mason component as the
controller, Perl modules as the model, and either Mason components or
: Really interesting, xml
: appears to be
: the final destination for most of us, even if now i
: prefer objects.
:
: Ciao, Valerio
That is my big question. Is XML/XSLT really the right solution? Using SAX
along with having tags call handlers seems like a pretty
On Mon, 10 Jun 2002, Matt Sergeant wrote:
It seems perfect for mod_perl2. Really interesting, xml appears to be
the final destination for most of us, even if now i prefer objects.
There's no conflict between using XML and using Objects if you're using AxKit.
Especially thanks to Simon
Perrin Harkins wrote:
On Mon, 10 Jun 2002, I wrote:
In the filesystem. Directly requested .tt files are all sent to a
default template handler:
Those are both interesting and may be the most appropriate solution for
the problems you're working on, but I wouldn't call either of them MVC.
Two good books could be written on these subjects:
* Mastering Design Patterns with Perl (I understand that Mastering
Algorithms with Perl sells quite well)
* Rapid Web Application Development with Perl
The second one would describe the various application frameworks available,
and related
What I didn't like about this is I then had to adjust the so-called
controller code that decoded the user input for my request object to
include these new features. But really that data was of only interest
to
the model. So a change in the model forced a change in the
controller.
No, a
On Sat, Jun 08, 2002 at 08:51:48AM +0800, Gunther Birznieks wrote:
I'm a huge fan of passing Date::Simple objects, which can then take a
strftime format string:
[% date.format(%d %b %y) %]
[% date.format(%Y-%m-%d) %]
And the latter does not require a programmer?
Of course not. It just
At 12:13 PM 06/08/02 +0100, Jeff wrote:
The responsibility of the Controller is to take all the supplied user
input, translate it into the correct format, and pass it to the Model,
and watch what happens. The Model will decide if the instruction can be
realised, or if the system should explode.
From: Bill Moseley [mailto:[EMAIL PROTECTED]]
Sent: 08 June 2002 20:48
I've gone full circle on handling user input. I used to try to
abstract
CGI input data into some type of request object that was then passed
onto
the models. But then the code to create the request object ended up
On Thu, 6 Jun 2002 20:15:24 -0600, Rob Nagler [EMAIL PROTECTED] said:
(http://sourceforge.net/projects/poop/).
RN Great, another mailing list. :-) Thanks.
It is not just mailing list. Don't miss
http://poop.sourceforge.net/. It has nice review of most Perl OO
persistence modules.
--
Ilya
On Fri, 2002-06-07 at 03:15, Rob Nagler wrote:
Agreed. Perl is good at text manipulation. It is imiho superior to
XSLT in all spaces which XSLT claims to solve. Once you have an XML
parse tree in Perl, it's trivial to write a translator to any format
more correctly than XSLT. My favorite
Hi all,
On Fri, 7 Jun 2002, Valerio_Valdez Paolini wrote:
On Thu, 6 Jun 2002, Jeff wrote:
We can take the discussion off-line if the list feels it will be too OT.
No, please :)
Yes, please.
73,
Ged.
On Thu, Jun 06, 2002 at 08:15:24PM -0600, Rob Nagler wrote:
The issue here is not whether TT is a bad approach, but rather why the
syntax is not Perl.
One reason is that I like to have minimal syntax in the templates. One
argument often used is that non-programmer find it easier to say
Bill Moseley wrote:
My MVC efforts often fall apart in the C an M separation. My M parts end
up knowing too much about each other -- typically because of error
conditions e.g. data that's passed to an M that does not validate. And I
don't want to validate too much data in the C as the C
On 6/7/02 1:04 PM, Perrin Harkins wrote:
For example, if you have a form for registering as a user which has
multiple fields, you want to be able to tell them everything that was
wrong with their input (zip code invalid, phone number invalid, etc.),
not just the first thing you encountered.
Hey Perrin Bill --
You could also just punt and push this out to the
controller. (Not very pure but simple to implement.)
This is exactly what I had in mind. (Perhaps you can explain what you mean
by not very pure.) The methods in any model module I would write would
have expectations
::really hesitates to step into this ... but like a train wreck ... he
simply can't resist::
It's like asking why XML has different syntax and semantics from Perl.
Well, if you read the XSLT spec and then look at an XSLT program,
you'll see a lot of verbosity and a lot of general purpose
On Thu, Jun 06, 2002 at 05:08:56PM -0400, Sam Tregar wrote:
Suppose you have a model object for a concert which includes a date. On
one page, the designers want to dipslay the date in a verbose way with
the month spelled out, but on another they want it abbreviated and fixed
length so
::realizes this may be going a bit futher a field ... but tries to maintain
topicality::
Chris writes:
Perl handels Regex's better than C, this is one of the reasons people
use Perl.
I disagree. Perl's Regex processor is written in C. The difference is
that it has outgrown Henry
On Fri, Jun 07, 2002 at 09:14:25AM +0100, Tony Bowden wrote:
On Thu, Jun 06, 2002 at 05:08:56PM -0400, Sam Tregar wrote:
Suppose you have a model object for a concert which includes a date. On
one page, the designers want to dipslay the date in a verbose way with
the month spelled out,
On Thu, Jun 06, 2002 at 12:02:47AM -0600, Rob Nagler wrote:
These are the reserve words of TT:
[...]
Looks an awful lot like the same keywords in any general-purpose
programming language.
Yep, I agree. You can use it like a programming language and it
gives you more than enough rope to hang
Wardley [EMAIL PROTECTED]
cc: modperl List [EMAIL PROTECTED], Template
Toolkit List [EMAIL PROTECTED] (bcc:
Wesley Sheldahl/Lex/Lexmark)
Subject: Re: Separating Aspects (Re: separating C from V in MVC)
Here's my theory: the best usage of most templating systems are virtually
Sam Tregar wrote:
Now, I don't use HTML::Template::Expr. I think it's generally not such a
good idea. But it's there if you want it...
For posterity, and possible inclusion in the next rev of the templating
tutorial, how would you recommend people handle this sort of situation
without
I, like many, find these discussion really interesting. I always wish
there was some write up for the mod_perl site when all was said and done.
But I guess one of the reasons it's so interesting is that there's more
than one correct point of view.
My MVC efforts often fall apart in the C an M
On Thu, 6 Jun 2002, Bill Moseley wrote:
Anyone have links to examples of MVC Perl code (mostly controller code)
that does a good job of M and C separation, and good ways to propagate
errors back to the C?
http://pagekit.org,; might be interesting.
Fiq
Hi Bill --
I, like many, find these discussion really interesting. I always wish
there was some write up for the mod_perl site when all was
said and done.
But I guess one of the reasons it's so interesting is that
there's more
than one correct point of view.
I expect to complete an
On Thu, 6 Jun 2002, Bill Moseley wrote:
Anyone have links to examples of MVC Perl code (mostly controller code)
that does a good job of M and C separation, and good ways to propagate
errors back to the C?
I'm working on my own impelmentation at the moment and am planning to have
a
From: Jesse Erlbaum [mailto:[EMAIL PROTECTED]]
Sent: 06 June 2002 19:34
To: 'Bill Moseley'; [EMAIL PROTECTED]
First off, it is less of an MVC crime to combine your Model and
Controller than it is to combine your Controller and View.
I disagree - coupling Controller and Model
On Thu, 6 Jun 2002, Perrin Harkins wrote:
For posterity, and possible inclusion in the next rev of the templating
tutorial, how would you recommend people handle this sort of situation
without using HTML::Template::Expr?
Suppose you have a model object for a concert which includes a date.
From: Bill Moseley [mailto:[EMAIL PROTECTED]]
Sent: 06 June 2002 19:06
To: [EMAIL PROTECTED]
My MVC efforts often fall apart in the C an M separation.
My M parts end up knowing too much about each other -- typically
because of error conditions e.g. data that's passed to an M that
Bill Moseley writes:
Anyone have links to examples of MVC Perl code (mostly controller code)
that does a good job of M and C separation, and good ways to propagate
errors back to the C?
I humbly (do believe that ;-) submit http://petshop.bivio.biz
Every page contains the control logic which
Continuing from the thread on the modperl mailing list:
On Sun, Jun 02, 2002 at 05:04:01PM -0400, Sam Tregar wrote:
I don't think the standard HTML::Template has support for formatting
numbers, dates, etc.
And thank the sweet lord it doesn't! HTML::Template is a do one thing
and do it
On Thu, May 30, 2002 at 05:42:23PM -0400, Jesse Erlbaum wrote:
It has been my experience that applying a design pattern such as MVC is not
a panacea.
[...]
My point: My
code isn't good because I apply some pattern to it. It may be good, and
it may resemble a pattern -- but those two things
On Fri, May 31, 2002 at 12:21:45PM -0400, Jesse Erlbaum wrote:
It's the addition tricks which bug me out. With those two words you
establish the mother of all slippery slopes to architecture oblivion.
True. And in your Perl code you can also write all sorts of dangerous code
that totally
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