It seems that your <script/> might get evaluated/executed before the module
has finished loading and therefore your function window.addTreeItem might
not exist yet.
Several workarounds for that are possible I think.
On Thu, Jun 24, 2010 at 9:39 PM, barbe...@muohio.edu <barbe...@muohio.edu>wrote:
> Hi everyone,
>
> I am faced with a situation in which I must pass variables read in
> from a database table using PHP to my GWT application. I am doing this
> by using PHP to read in the data(which are Strings), and then calling
> a JSNI function from my GWT application like so:
>
> $result = mysql_query("SELECT * FROM sampleTreeTable");
>
> while($row = mysql_fetch_array($result)) {
> $temp = $row['treeItem'];
> echo "<script language=javascript>addTreeItems('$temp');</
> script>";
> }
>
> I know that my echo statement works, because when I call other locally
> defined javascript functions in the place of addTreeItems, they
> execute just fine. It is only the JSNI function addTreeItems that does
> not seem to execute.
>
> The function addTreeItems is defined in the Java source code for my
> GWT application as follows:
>
> public void serverAdd(String s) {
> //some code
> }
>
> public native void setShowTrigger(TreeTest x)/*-{
>
> $wnd.addTreeItem = function(s) {
>
> x...@com.treetest.tomproject.client.treetest::serverAdd(Ljava/lang/
> String;)(s);
>
> };
> }-*/;
>
> When running my GWT application in development mode, accessing
> addTreeItems through the html file works just fine, most of the time
> anyways. Sometimes when I first start debugging it will not execute,
> but if I refresh the page it always executes just fine.
> The real problem occurs once I compile my application and deploy it to
> my web server. I seem to be unable to call addTreeItems once my
> application is deployed. Once I deploy my GWT generated html file, I
> change the file from a .html to a .php file so that I can add the PHP
> code, and everything still works just fine except my JSNI addTreeItems
> method.
>
> So basically, I am completely lost on this issue. Anyone have any idea
> how to accomplish what I am trying to do? I know I could use RPC to
> connect to the database and do most all of this within my GWT
> application, but the requirements of this project stipulate that I
> avoid doing so. Any help at all would be great.
>
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