7 Sep
2007
7 Sep
'07
8:56 p.m.
Hi,
First of all, please excuze me if it's a stupid question, I'm a newbie with
Magritte.
Is there a way to add conditions do descriptions "on the fly"? For example I
have an object with descriptions, and when I do asComponent addValidatedForm, I would
like to add a condition to a description, but this time only.
Cheers,
Sop
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7 Sep
7 Sep
11:19 p.m.
ct: Magritte question
Hi,
First of all, please excuse me if it's a stupid question, I'm
a newbie with Magritte.
Is there a way to add conditions do descriptions "on the
fly"? For example I have an object with descriptions, and
when I do asComponent addValidatedForm, I would like to add a
condition to a description, but this time only.
Cheers,
Sop
buildEditorFor: aModel
^(aModel description
addCondition:[:memento | ];
asComponentOn: aModel)
addValidatedForm;
yourself
Ramon Leon
http://onsmalltalk.com
8 Sep
8 Sep
2:54 a.m.
From: ramon.leon(a)allresnet.com
To: smallwiki(a)iam.unibe.ch
Subject: RE: Magritte question
Date: Fri, 7 Sep 2007 14:19:31 -0700
ct: Magritte question
Thanks, I Tried this :
buildEditorFor: anItem
(anItem description
addCondition: [:item | (Item repository contains: [:each | each id = item id) not];
asComponentOn: anItem)
addValidatedForm;
yourself
It seems to work fine, but the condition dosen't disappear until the session expires.
What am I missing ?
Hi,
First of all, please excuse me if it's a stupid question, I'm
a newbie with Magritte.
Is there a way to add conditions do descriptions "on the
fly"? For example I have an object with descriptions, and
when I do asComponent addValidatedForm, I would like to add a
condition to a description, but this time only.
Cheers,
Sop
buildEditorFor: aModel
^(aModel description
addCondition:[:memento | ];
asComponentOn: aModel)
addValidatedForm;
yourself
Ramon Leon
http://onsmalltalk.com
_______________________________________________
SmallWiki, Magritte, Pier and Related Tools ...
https://www.iam.unibe.ch/mailman/listinfo/smallwiki
_________________________________________________________________
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4:46 a.m.
Thanks, I Tried this :
buildEditorFor: anItem
(anItem description
addCondition: [:item | (Item repository contains: [:each |
each id = item id) not];
asComponentOn: anItem)
addValidatedForm;
yourself
It seems to work fine, but the condition dosen't disappear
until the session expires.
What am I missing ?
>
> Ramon Leon
> http://onsmalltalk.com
Likely that you're using the same component for the entire length of the
session. You may want to copy the description as well, I don't recall if
Magritte still caches its descriptions, so say anItem description copy
addCondtion.
Ramon Leon
http://onsmalltalk.com
11:42 a.m.
Likely that you're using the same component for
the entire length
of the
session. You may want to copy the description as well, I don't
recall if
Magritte still caches its descriptions, so say anItem description copy
addCondtion.
Yes, you have to copy the description, else your globally cached
description ends up with a whole set of conditions.
Caching can be disabled by using a different description-builder,
however need the descriptions a lot (e.g. searching, persistency) it
is really worth to let Magritte only build them once and then cache
them.
Lukas
--
Lukas Renggli
http://www.lukas-renggli.ch
3:31 p.m.
From: renggli(a)iam.unibe.ch
Subject: Re: Magritte question
Date: Sat, 8 Sep 2007 11:42:15 +0200
To: smallwiki(a)iam.unibe.ch
Thank you for your help.
Now I have another problem :
buildEditorFor: anItem
^(anItem description copy
addCondition: [:memento | (Item repository
contains: [:each | memento model id = each not]) not]
labelled: 'An item with that id already exists';
asComponentOn: anItem)
addValidatedForm;
yourself
The memento model id doesn't change it's value when I edit it. I saw
MACheckedMemento has a #cache and a #original method, maybe I should use them, but I
don't know how.
Sebastien
Likely that you're using the same component
for the entire length
of the
session. You may want to copy the description as well, I don't
recall if
Magritte still caches its descriptions, so say anItem description copy
addCondtion.
Yes, you have to copy the description, else your globally cached
description ends up with a whole set of conditions.
Caching can be disabled by using a different description-builder,
however need the descriptions a lot (e.g. searching, persistency) it
is really worth to let Magritte only build them once and then cache
them.
Lukas
--
Lukas Renggli
http://www.lukas-renggli.ch
_______________________________________________
SmallWiki, Magritte, Pier and Related Tools ...
https://www.iam.unibe.ch/mailman/listinfo/smallwiki
_________________________________________________________________
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4:13 p.m.
From: sop2(a)hotmail.fr
To: smallwiki(a)iam.unibe.ch
Subject: RE: Magritte question
Date: Sat, 8 Sep 2007 15:31:57 +0200
From: renggli(a)iam.unibe.ch
Subject: Re: Magritte question
Date: Sat, 8 Sep 2007 11:42:15 +0200
To: smallwiki(a)iam.unibe.ch
Thank you for your help.
Now I have another problem :
buildEditorFor: anItem
^(anItem description copy
addCondition: [:memento | (Item repository
contains: [:each | memento model id = each not]) not]
labelled: 'An item with that id already exists';
asComponentOn: anItem)
addValidatedForm;
yourself
Of course it was : contains: [:each | memento model id = each id]) not]
The memento model id doesn't change it's value when I edit it. I saw
MACheckedMemento has a #cache and a #original method, maybe I should use them, but I
don't know how.
Sebastien
Likely that you're using the same component
for the entire length
of the
session. You may want to copy the description as well, I don't
recall if
Magritte still caches its descriptions, so say anItem description copy
addCondtion.
Yes, you have to copy the description, else your globally cached
description ends up with a whole set of conditions.
Caching can be disabled by using a different description-builder,
however need the descriptions a lot (e.g. searching, persistency) it
is really worth to let Magritte only build them once and then cache
them.
Lukas
--
Lukas Renggli
http://www.lukas-renggli.ch
_______________________________________________
SmallWiki, Magritte, Pier and Related Tools ...
https://www.iam.unibe.ch/mailman/listinfo/smallwiki
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10:46 p.m.
Thank you for your help.
Now I have another problem :
buildEditorFor: anItem
^(anItem description copy
addCondition: [:memento | (Item repository
contains: [:each | memento model id = each not]) not]
labelled: 'An item with that id already exists';
asComponentOn: anItem)
addValidatedForm;
yourself
The memento model id doesn't change it's value when I edit
it. I saw MACheckedMemento has a #cache and a #original
method, maybe I should use them, but I don't know how.
Sebastien
That's because the memento doesn't write to the model until after it passes
all its validations. You need to check the pending values, which are in the
memento keyed by your descriptions. You don't want to say "memento model
id" in your rule, you want to say "memento cache at: YouModel
descriptionId"
to see it's pending value.
Ramon Leon
http://onsmalltalk.com
9 Sep
9 Sep
1:03 a.m.
From: ramon.leon(a)allresnet.com
To: smallwiki(a)iam.unibe.ch
Subject: RE: Magritte question
Date: Sat, 8 Sep 2007 13:46:46 -0700
Thank you very much Ramon !
Thank you for your help.
Now I have another problem :
buildEditorFor: anItem
^(anItem description copy
addCondition: [:memento | (Item repository
contains: [:each | memento model id = each not]) not]
labelled: 'An item with that id already exists';
asComponentOn: anItem)
addValidatedForm;
yourself
The memento model id doesn't change it's value when I edit
it. I saw MACheckedMemento has a #cache and a #original
method, maybe I should use them, but I don't know how.
Sebastien
That's because the memento doesn't write to the model until after it passes
all its validations. You need to check the pending values, which are in the
memento keyed by your descriptions. You don't want to say "memento model
id" in your rule, you want to say "memento cache at: YouModel
descriptionId"
to see it's pending value.
Ramon Leon
http://onsmalltalk.com
_______________________________________________
SmallWiki, Magritte, Pier and Related Tools ...
https://www.iam.unibe.ch/mailman/listinfo/smallwiki
_________________________________________________________________
Créez un blog Messenger pour partager facilement toutes vos photos de vacances !
http://www.windowslive.fr/spaces/default.asp
10 Sep
10 Sep
4:25 p.m.
Yes, you have to copy the description, else your
globally cached
description ends up with a whole set of conditions.
Caching can be disabled by using a different description-builder,
Hi Lukas,
Here you are suggesting the idea of providing a specialized
description-builder.
May I take the liberty of pointing out again that since the existing
description builder uses a class var for "Default" rather than a class
instance var as would be preferable for subclassing the existing
description builder.
best regards
Keith
however need the descriptions a lot (e.g. searching,
persistency) it
is really worth to let Magritte only build them once and then cache
them.
Lukas
5:02 p.m.
May I take the liberty of pointing out again that
since the existing
description builder uses a class var for "Default" rather than a class
instance var as would be preferable for subclassing the existing
description builder.
Yes, that's exactly the reason I use a class var ;-)
All the users of a description builder use
MADescriptionBuilder default
If you want to use your own custom description builder, you assign a
different one to be used as default:
MADescriptionBuilder default: SpecialBuilder new
Regards,
Lukas
--
Lukas Renggli
http://www.lukas-renggli.ch
6:49 p.m.
Lukas Renggli wrote:
Ah I see.
My typical use case is to use my specialized builder in specific
circumstances.
I do a
SpecialBuilder default
to obtain the builder that I want, so I shall change that to
SpecialBuilder instance, instead and have instance as the class instance
var.
thanks
Keith
May I take the
liberty of pointing out again that since the existing
description builder uses a class var for "Default" rather than a class
instance var as would be preferable for subclassing the existing
description builder.
Yes, that's exactly the reason I use a class var ;-)
All the users of a description builder use
MADescriptionBuilder default
If you want to use your own custom description builder, you assign a
different one to be used as default:
MADescriptionBuilder default: SpecialBuilder new
Regards,
Lukas
7 p.m.
I have updated the CustomBuilder pacakge and posted it to the
magritteaddons repository.
Could you do me a favour and delete the version mistakenly posted to
pier addons.
many thanks
Keith
7:07 p.m.
Keith Hodges wrote:
I have updated the CustomBuilder pacakge and posted it
to the
magritteaddons repository.
Could you do me a favour and delete the version mistakenly posted to
pier addons.
many thanks
Keith
actually, hold fire on that, I am struggling to access magritteaddons
for some reason, though pier addons is fine.
Keith
7:10 p.m.
Ah I see.
My typical use case is to use my specialized builder in specific
circumstances.
I do a
SpecialBuilder default
to obtain the builder that I want, so I shall change that to
SpecialBuilder instance, instead and have instance as the class
instance
var.
Indeed. I had a different use-case in mind than you do. Of course we
can have both strategies together.
Lukas
--
Lukas Renggli
http://www.lukas-renggli.ch
6071
days inactive
6074
days old
14 comments
4 participants
participants (4)
-
Keith Hodges -
Lukas Renggli -
Ramon Leon -
sop soptwo