Datasets are not static members of classes if they are declared inside the
<class> tag.
In your code snippet below, thedataset will exist in each instance of
PetCreate3. It can be accessed from within the PetCreate3 instance in JS as
classroot.thedataset
and via XPATH for replication as
datapath="local:classroot.thedataset:/"
Then each instance of PetCreate3 will have her own dataset and there will *not*
be a global dataset called thedataset - standard OO stuff.
HTH,
-e
Elliot Winard
Sr. Software Engineer
Laszlo Studios
On Mon, 2 Oct 2006, [EMAIL PROTECTED] wrote:
> That warnings goes with the version of the code that uses the <submit> tag
> (I give the code in the same email to avoid confusion).
> I understand that if I defined outside a class a dataset, say DS, it could
> be reach by var ds = canvas.datasets.DS.
>
> Also, in the case of a script set, I do not understant how the dataset
> could be accessed via MyClass.dataset.
> In such a case, it would be static or class member. But it is defined as
> other tag, so it should be instance member.
> If not, it will be the same for the text field and they should share the
> same value across various instance.
> That would not allow us to use 2 instances of the same form/window.
>
> So, at the end, I'm completely confused about that dataset static member
> of classes or not.
> How can the <TEXT could be at instance level while the <DATASET would be
> static (at class level) ???
> Take that LZX as an example :
>
> <class closeable="true" extends="window" name="PetCreate3"
> resizable="true" title="quick add a pet">
> <dataset name="thedataset" request="false" type="http" src="
> http://localhost:9090/n/debug/blablabla"/>
> <form>
> <submit name="submitter" data="'${thedataset}'"/>
> <view layout="axis: x; spacing: 5" width="${parent.parent.width}">
> <text name="entryDatelabel" text="entryDate" y="1"/>
>
>
>
>
>
>
>
>
> Internet
> [EMAIL PROTECTED]
>
> 02/10/2006 15:37
> Please respond to
> [EMAIL PROTECTED]
>
>
> To
> Jean-Baptiste BRIAUD
> cc
> laszlo-user
> Subject
> Re: [Laszlo-user] HTTP request
>
>
>
>
>
>
> It should not matter where the dataset is defined. However, the
> assignment you are using:
>
> var ds = canvas.datasets.dataset
>
> is attempting to find the dataset as a dataset defined on the canvas. If
> your dataset is defined within the class, you need to specifically
> reference the dataset relative to the class.
>
> Example:
>
> var ds = MyClass.thedataset;
>
> Thanks,
> -bc
>
> On 10/2/06, [EMAIL PROTECTED] <
> [EMAIL PROTECTED]> wrote:
>
> It is interesting. There is a difference between my code and the example :
> the dataset is define outside the class in the example.
> Then, my question is : is it a good design to define that dataset outside
> the window class ?
>
> For example, if dataset is defined outside the class, what will happen in
> case there are more than one instance of that class ?
> 2 instances will share the same dataset, is it an issue ?
>
> Thanks again, all of you, for your help !
>
>
>
> Internet
> [EMAIL PROTECTED]
> 02/10/2006 15:00
>
> Please respond to
> [EMAIL PROTECTED]
>
>
> To
> Jean-Baptiste BRIAUD
> cc
>
> Subject
> Re: [Laszlo-user] HTTP request
>
>
>
>
>
>
>
>
> While I do not have the example I created presently available to me, I am
> confident that the example described in the following link works:
>
> http://www.laszlosystems.com/lps-3.3/docs/guide/data_app.html#d0e22758
>
> In your code, is "var ds = canvas.datasets.dataset" referencing a valid
> dataset that is defined?
>
> Example:
> <dataset name="dsSendData" request="false" src="contactmgr.jsp
> " type="http"/>
>
> If so, you should be using:
> var d=canvas.datasets.dsSendData;
>
> I hope this helps, but if not, will try to remember to send my own working
> code to demonstrate the functionality once I get to my other laptop.
>
>
> Thanks,
> -bc
>
>
> On 10/2/06, [EMAIL PROTECTED] <
> [EMAIL PROTECTED] > wrote:
>
> Is doesn't work. The field dosen't even show.
> I care about using classes but I do not care about submit.
> Is there other way of doiing that ?
> I already try by a script like that :
>
> <button text="Go !" x="50" y="190">
> <method event="onclick">
> <![CDATA[
> var ds = canvas.datasets.dataset; // Maybe
> there is better way to search for a dataset ??? Especially if they are in
> classes ???
> var query = new LzParam();
> query.addValue( 'pouette', "1", true );
> query.addValue( XXXXX);
> ds.setQueryString( query );
> ds.doRequest();
> ]]>
> </method>
> </button>
>
>
> None of my approaches had worked ! Are classes concept mature enough in
> LZX ?
>
>
>
>
> Internet
> [EMAIL PROTECTED]
> Sent by: [EMAIL PROTECTED]
> 02/10/2006 14:28
>
>
> To
> Jean-Baptiste BRIAUD
> cc
>
> Subject
> Re: [Laszlo-user] HTTP request
>
>
>
>
>
>
>
>
>
>
> Have you tried placing the form elements as children of the submitter?
> I'mnot sure if you can nest them if you want to use the submitter to
> submit to the server. E.g.:
>
> <form>
> <submit name="submitter" data="'${thedataset}'"/>
> <text name="entryDatelabel" text="entryDate" y="1"/>
> <edittext resizable="true" name="entryDate" y="2"
> width="${parent.width - (this.x + 50 )}" />
> <text name="namelabel" text="name" y="1"/>
> <edittext resizable="true" name="name" y="2"
> width="${parent.width - (this.x + 50 )}" />
> <text name="sexlabel" text="sex" y="1"/>
> <edittext resizable="true" name="sex" y="2" width="${parent.width
> - (this.x + 50 )}" />
> <button isdefault="true"
> onclick="parent.submitter.submit()">Submit</button>
> </form>
>
> HTH,
>
> Adeola.
>
>
>
>
>
> On 02/10/06, [EMAIL PROTECTED] <
> [EMAIL PROTECTED] > wrote:
>
> HI the list,
>
> I'd like to design windows with class so there can be several instances.
> I don't know if it the problem but I'm lost with a simple window that try
> to submit a form with HTTP.
> That should be simple but I was not able to make it work.
>
> After hours of various try I'm not able to reach my http server from a
> simple form (example at the end).
> It might be a design issue, please help !
> Any advice is welcome as I'm in the dark...
>
> I got warnings from the debug windows on submit.lzx for example, but I
> think the issue is most probably in my code, you know that ... :-)
>
> I was able to reuse the example with the echoer given in the
> documentation, so it is not a configuration issue.
> I'm using the 3.3.3.
>
> A big thanks in advance !
>
> Here is the way I call the form (this works) :
> code:
>
> <canvas debug="true" title="petshop">
> <splash/>
> <include href="pet-create-3.lzx"/>
> <menubar>
> <menu text="petshop">
> <menuitem onclick="new PetCreate3()" text="quick add a pet"/>
> </menu>
> </menubar>
> </canvas>
>
>
> and here is the form. This does not work, I got nothing on server side.
> When I use the *same url* in the simple example given in the doc it works.
> So, it is due to the class ? THis is the only difference I can see.
> code:
> <library>
>
> <class closeable="true" extends="window" name="PetCreate3"
> resizable="true" title="quick add a pet">
> <dataset name="thedataset" type="http" src="
> http:localhost:9090/n/debug/blablabla"/>
> <form>
> <submit name="submitter" data="'${thedataset}'"/>
> <view layout="axis: x; spacing: 5" width="${parent.parent.width}">
> <text name="entryDatelabel" text="entryDate" y="1"/>
> <edittext resizable="true" name="entryDate" y="2"
> width="${parent.width - (this.x + 50 )}" />
> </view>
> <view layout="axis: x; spacing: 5" width="${parent.parent.width}">
> <text name="namelabel" text="name" y="1"/>
> <edittext resizable="true" name="name" y="2"
> width="${parent.width - (this.x + 50 )}" />
> </view>
> <view layout="axis: x; spacing: 5" width="${parent.parent.width}">
> <text name="sexlabel" text="sex" y="1"/>
> <edittext resizable="true" name="sex" y="2" width="${parent.width
> - (this.x + 50 )}" />
> </view>
> <view layout="axis: x; spacing: 5">
> <button isdefault="true"
> onclick="parent.parent.submitter.submit()">Submit</button>
> </view>
> </form>
> </class>
> </library>
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