10 Dec
2013
10 Dec
'13
5:47 p.m.
On Tue, Dec 10, 2013 at 7:27 AM, Diego Lont <diego.lont(a)delware.nl> wrote:
Hi Mariano,
A bit longer answer.
Thanks for your detailed answer.
I added an example to the QC Magritte Demo to show how
this can be done. I
added it to the last demo (form demo).
There are actual several ways to do this in QC Magritte, but I implemented
what I think is the most elegant one for this problem.
First you need to make sure the QC Magritte stuff is used, so in the
domain object we implement to following 2 methods:
mementoClass
^QCAjaxMemento
The normal memento is not aware of the class and will not process and
domain rules, other than validations set in the descriptions. We need to
update the values of other objects as well, so this allows for influences
and hidden fields.
setDefaultsFor: aContainer
<magritteContainer>
^aContainer
componentRenderer: QCGroupedFormRenderer;
componentClass: QCContainerComponent;
descriptionBuilder: QCDescriptionFlattener;
yourself
This basically overrides the default component class, component renderer
and adds a description builder.
The component renderer adds the AJAX stuff. This renderer adds a callback
to each element of a group, that re renders the group when it is changed.
Also it allows for groups to be collapsed by the user.
OK, I understand. One problem I have right now is that
QCGroupedFormRenderer and its superclass changes the way things are
rendered, add bootstrap CSS classes etc...Moreover, I have my own subclass
of MATableRenderer where I change a few things. I have #myAsComponent which
does:
^ self magritteDescription
componentRenderer: MyTableRendered "QCGroupedFormRenderer";
asComponentOn: self
QCGroupedFormRenderer does what I need but also much more. So...do you know
what is the easiest way so that I can reuse the ajax for the groups? I just
need that I can group things and that when one of them is changed, all the
rest of the group are re-rendered. So all #renderEditorOn: html ajaxScript:
aScript are very useful. The key part I think it is this:
| script |
groupDescriptions ifNil: [ script := self createUpdaterFor: aDescription
id: anId serialize: (childComponent serializeScriptOn: html) ]
ifNotNil: [ self halt. script := self createUpdaterForList:
groupDescriptions id: anId serialize: (childComponent serializeScriptOn:
html) group: group ].
childComponent renderContentOn: html ajaxScript: script ]
soo any idea how could I plug that into say MATableRenderer (then I take
care of my subclass)? I am not sure where I should get the
groupDescriptions from...
I think that having a subclass of MATableRenderer with *ONLY* that ability
would be super awesome.
The component class makes sure the description builder is used to process
the description. The description builder you probably don't need, but it
processes the description, before it is shown, allowing for defaults,
security and such. The descriptionFlattener is expanding relations to
groups, allowing to use nested objects. I.E. a person has an address, and
you want to model this as a different object. But when you edit a person,
you usually want to be able to change the address, without switching pages.
If you do not want to use the description builder, setting the component
renderer will suffice.
Indeed. I want to start with something very simple and just be able to
re-render other descriptions when one is modified.
Thanks Diego,
For more information on QC Magritte see:
http://smalltalkhub.com/#!/~DiegoLont/QCMagritte
Cheers,
Diego
On Dec 9, 2013, at 9:28 PM, Mariano Martinez Peck wrote:
Hi guys. I have lots of seaside forms with magritte. One problem I have
now is that I want to refresh the form once an item from a combo list has
been selected. For example, the typical set country / state (or provice).
In other words...I want to refresh the form once certain fields are choose.
I did not find this functionality available in Magritte-Seaside. I am
missing something?
Thanks in advance,
--
Mariano
http://marianopeck.wordpress.com
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Mariano
http://marianopeck.wordpress.com