Smalltalk › Pharo › Pharo Smalltalk Users

Magritte Meta Data at work - Tutorial a clarity reqd

_‹ Previous Topic Next Topic _›

Classic

List

Threaded

4 messages Options

Sanjay Minni

Magritte Meta Data at work - Tutorial a clarity reqd

From pg 16 of "meta data at work with Magritte - Tutorial", Stef

how are these to be entered since both method codes are in the same object
and methodName

MAAddress >> descriptionEndDate

^ MADateDescription new
accessor: #endDate;
label: 'End Date';
addCondition: [ :value | value > Date today ];
beRequired;
yourself

MAAddress >> descriptionEndDate

^ super descriptionContainer
addCondition: [ :object |
(object readUsing: self descriptionEndDate) >
(object readUsing: self descriptionStartDate)]
labelled: 'End date must be after start date';
yourself

-----
cheers,
Sanjay
--
Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

cheers,
Sanjay

Stéphane Ducasse

Re: Magritte Meta Data at work - Tutorial a clarity reqd

probably a mistake :( send a PR when you find the solution.

On 26 Jan 2021, at 10:31, Sanjay Minni <[hidden email]> wrote:

From pg 16 of "meta data at work with Magritte - Tutorial", Stef

how are these to be entered since both method codes are in the same object
and methodName

MAAddress >> descriptionEndDate

^ MADateDescription new
accessor: #endDate;
label: 'End Date';
addCondition: [ :value | value > Date today ];
beRequired;
yourself

MAAddress >> descriptionEndDate

^ super descriptionContainer
addCondition: [ :object |
(object readUsing: self descriptionEndDate) >
(object readUsing: self descriptionStartDate)]
labelled: 'End date must be after start date';
yourself

-----
cheers,
Sanjay
--
Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

--------------------------------------------

Stéphane Ducasse

http://stephane.ducasse.free.fr / http://www.pharo.org

03 59 35 87 52

Assistant: Aurore Dalle

FAX 03 59 57 78 50

TEL 03 59 35 86 16

S. Ducasse - Inria

40, avenue Halley,

Parc Scientifique de la Haute Borne, Bât.A, Park Plaza

Villeneuve d'Ascq 59650

France

Sanjay Minni

Re: Magritte Meta Data at work - Tutorial a clarity reqd

Hi Stef,

i tried by changing the method name to >> descriptionContainer which seemed obvious

and then I got the following errors (added a field Graduation Date and a check at container lever for Graduation Date > Birthday)

Request for any hints to the right solution.

A: Walkback deprecated method being used:

==================================

B: whole screen formatting's gone haywire

=================================

On Wed, 27 Jan 2021 at 00:00, Stéphane Ducasse <[hidden email]> wrote:

probably a mistake :( send a PR when you find the solution.

On 26 Jan 2021, at 10:31, Sanjay Minni <[hidden email]> wrote:

From pg 16 of "meta data at work with Magritte - Tutorial", Stef

how are these to be entered since both method codes are in the same object
and methodName

MAAddress >> descriptionEndDate

^ MADateDescription new
accessor: #endDate;
label: 'End Date';
addCondition: [ :value | value > Date today ];
beRequired;
yourself

MAAddress >> descriptionEndDate

^ super descriptionContainer
addCondition: [ :object |
(object readUsing: self descriptionEndDate) >
(object readUsing: self descriptionStartDate)]
labelled: 'End date must be after start date';
yourself

-----
cheers,
Sanjay
--
Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

--------------------------------------------
Stéphane Ducasse
http://stephane.ducasse.free.fr / http://www.pharo.org
03 59 35 87 52
Assistant: Aurore Dalle
FAX 03 59 57 78 50
TEL 03 59 35 86 16
S. Ducasse - Inria
40, avenue Halley,
Parc Scientifique de la Haute Borne, Bât.A, Park Plaza
Villeneuve d'Ascq 59650
France

---

Sanjay Minni

+91-9900-902902

cheers,
Sanjay

Sanjay Minni

Re: Magritte Meta Data at work - Tutorial a clarity reqd

In reply to this post by Stéphane Ducasse

OK,

got this to work as follows as of now
Changed the second part of the code - i.e. to push the (validation) rules to
the container as follows

MAAddress >> descriptionContainer "// (i.e. not descriptionEndDate) as
in the document"
<magritteContainer> "// (i.e. not
<magritteDescription> as in the document"
^ super descriptionContainer
addCondition: [ :object |
(object readUsing: self descriptionEndDate) >
(object readUsing: self descriptionStartDate)]
labelled: 'End date must be after start date';
yourself

@Stef: If you want I can send a PR but I really haven't done it before and I
dont have a GH client on my machine if thats reqd - i only interact thru
iceberg - if thats relevant

Stéphane Ducasse wrote
> probably a mistake :( send a PR when you find the solution.
>
>> On 26 Jan 2021, at 10:31, Sanjay Minni <

> sm@

> > wrote:
>>
>> From pg 16 of "meta data at work with Magritte - Tutorial", Stef
>>
>> how are these to be entered since both method codes are in the same
>> object
>> and methodName
>>
>> MAAddress >> descriptionEndDate
>>
>> ^ MADateDescription new
>> accessor: #endDate;
>> label: 'End Date';
>> addCondition: [ :value | value > Date today ];
>> beRequired;
>> yourself
>>
>> MAAddress >> descriptionEndDate
>>
>> ^ super descriptionContainer
>> addCondition: [ :object |
>> (object readUsing: self descriptionEndDate) >
>> (object readUsing: self descriptionStartDate)]
>> labelled: 'End date must be after start date';
>> yourself
>>
>>
>>
>> -----
>> cheers,
>> Sanjay
>> --
>> Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html
>
> --------------------------------------------
> Stéphane Ducasse
> http://stephane.ducasse.free.fr / http://www.pharo.org
> 03 59 35 87 52
> Assistant: Aurore Dalle
> FAX 03 59 57 78 50
> TEL 03 59 35 86 16
> S. Ducasse - Inria
> 40, avenue Halley,
> Parc Scientifique de la Haute Borne, Bât.A, Park Plaza
> Villeneuve d'Ascq 59650
> France

-----
cheers,
Sanjay
--
Sent from: http://forum.world.st/Pharo-Smalltalk-Users-f1310670.html

cheers,
Sanjay