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Dashlets custom Datalists item

cchumi
Champ in-the-making
Champ in-the-making

‎04-11-2011 08:16 AM

Hi all,
I'm a new developper on alfresco and new on this forum.

I know there is already a topic who speak about that but i tried my own experience.
So i take datagrid.js and copy a part of code into my js.
But the setupdatasource answer me an error 500 : 


  _setupDataSources: function DemInter__setupDataSources()
      {

         var listNodeRef = new Alfresco.util.NodeRef('workspace:\/\/SpacesStore\/4c5b7844-78f6-48f0-b753-e73709dd7317');

         for (var i = 0, ii = this.datalistColumns.length; i < ii; i++)
         {
            var column = this.datalistColumns[i],
               columnName = column.name.replace(":", "_"),
               fieldLookup = (column.type == "property" ? "prop" : "assoc") + "_" + columnName;
            
            this.dataRequestFields.push(columnName);
            this.dataResponseFields.push(fieldLookup);
            this.datalistColumns[fieldLookup] = column;
         }

         // DataSource definition
         this.widgets.dataSource = new YAHOO.util.DataSource(Alfresco.constants.PROXY_URI + 'slingshot/datalists/data/node/' + listNodeRef.uri,
         {

            connMethodPost: true,
         connXhrMode: "queueRequests",
            responseType: YAHOO.util.DataSource.TYPE_JSON,
            responseSchema:
            {
               resultsList: "items",
               metaFields:
               {
                  totalRecords: "totalRecords"
               }
            }
         });
       
         this.widgets.dataSource.connMgr.setDefaultPostHeader(Alfresco.util.Ajax.JSON);
         // Intercept data returned from data webscript to extract custom metadata
              this.widgets.dataSource.doBeforeCallback = function DemInter_doBeforeCallback(oRequest, oFullResponse, oParsedResponse)
         {
            // Container userAccess event
                  
            var permissions = oFullResponse.metadata.parent.permissions;
            if (permissions && permissions.userAccess)
            {
               Bubbling.fire("userAccess",
               {
                  userAccess: permissions.userAccess
               });
            }
         
            return oParsedResponse;
         };

      },
‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍
As you can see i specified a static NodeRef.
This is the good one i check it in the datalist components page.
But when i set it in my dashboard i got this error :


{
    "status" : 
  {
    "code" : 500,
    "name" : "Internal Error",
    "description" : "An error inside the HTTP server which prevented it from fulfilling the request."
  },  
  
  "message" : "03110011 Failed to convert request to JSON",  
  "exception" : "org.springframework.extensions.webscripts.WebScriptException - 03110011 Failed to convert request to JSON",
  
  "callstack" : 
  [ 
       ""      ,"org.json.JSONException: A JSONObject text must begin with '{' at character 0"
      ,"org.json.JSONTokener.syntaxError(JSONTokener.java:413)"
      ,"org.json.JSONObject.<init>(JSONObject.java:180)"
      ,"org.json.JSONObject.<init>(JSONObject.java:420)"
      ,"org.springframework.extensions.webscripts.json.JSONReader.read(JSONReader.java:77)"
      ,"org.springframework.extensions.webscripts.json.JSONReader.createScriptParameters(JSONReader.java:93)"
      ,"org.springframework.extensions.webscripts.AbstractWebScript.createScriptParameters(AbstractWebScript.java:407)"
      ,"org.springframework.extensions.webscripts.DeclarativeWebScript.execute(DeclarativeWebScript.java:81)"
      ,"org.alfresco.repo.web.scripts.RepositoryContainer$2.execute(RepositoryContainer.java:377)"
      ,"org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:381)"
      ,"org.alfresco.repo.web.scripts.RepositoryContainer.transactionedExecute(RepositoryContainer.java:436)"
      ,"org.alfresco.repo.web.scripts.RepositoryContainer.transactionedExecuteAs(RepositoryContainer.java:466)"
      ,"org.alfresco.repo.web.scripts.RepositoryContainer.executeScript(RepositoryContainer.java:304)"
      ,"org.springframework.extensions.webscripts.AbstractRuntime.executeScript(AbstractRuntime.java:333)"
      ,"org.springframework.extensions.webscripts.AbstractRuntime.executeScript(AbstractRuntime.java:189)"
      ,"org.springframework.extensions.webscripts.servlet.WebScriptServlet.service(WebScriptServlet.java:118)"
      ,"javax.servlet.http.HttpServlet.service(HttpServlet.java:717)"
      ,"org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)"
      ,"org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)"
      ,"org.alfresco.web.app.servlet.GlobalLocalizationFilter.doFilter(GlobalLocalizationFilter.java:58)"
      ,"org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)"
      ,"org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)"
      ,"org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)"
      ,"org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)"
      ,"org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)"
      ,"org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)"
      ,"org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)"
      ,"org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)"
      ,"org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)"
      ,"org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)"
      ,"org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)"
      ,"java.lang.Thread.run(Thread.java:619)"
      ,"org.springframework.extensions.webscripts.WebScriptException: 03110011 Failed to convert request to JSON"
      ,"org.springframework.extensions.webscripts.json.JSONReader.read(JSONReader.java:82)"
 
  ],
  
  "server" : "Community v3.4.0 (d 3370) schema 4 113",
  "time" : "11 avr. 2011 13:40:07"
}
‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

So i take a look at the log on my server and the error is 


13:40:07,385 ERROR [org.springframework.extensions.webscripts.AbstractRuntime] Exception from executeScript - redirecting to status template error: 03110011 Failed to convert request to JSON
org.springframework.extensions.webscripts.WebScriptException: 03110011 Failed to convert request to JSON
   at org.springframework.extensions.webscripts.json.JSONReader.read(JSONReader.java:82)
   at org.springframework.extensions.webscripts.json.JSONReader.createScriptParameters(JSONReader.java:93)
   at org.springframework.extensions.webscripts.AbstractWebScript.createScriptParameters(AbstractWebScript.java:407)
   at org.springframework.extensions.webscripts.DeclarativeWebScript.execute(DeclarativeWebScript.java:81)
   at org.alfresco.repo.web.scripts.RepositoryContainer$2.execute(RepositoryContainer.java:377)
   at org.alfresco.repo.transaction.RetryingTransactionHelper.doInTransaction(RetryingTransactionHelper.java:381)
   at org.alfresco.repo.web.scripts.RepositoryContainer.transactionedExecute(RepositoryContainer.java:436)
   at org.alfresco.repo.web.scripts.RepositoryContainer.transactionedExecuteAs(RepositoryContainer.java:466)
   at org.alfresco.repo.web.scripts.RepositoryContainer.executeScript(RepositoryContainer.java:304)
   at org.springframework.extensions.webscripts.AbstractRuntime.executeScript(AbstractRuntime.java:333)
   at org.springframework.extensions.webscripts.AbstractRuntime.executeScript(AbstractRuntime.java:189)
   at org.springframework.extensions.webscripts.servlet.WebScriptServlet.service(WebScriptServlet.java:118)
   at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.alfresco.web.app.servlet.GlobalLocalizationFilter.doFilter(GlobalLocalizationFilter.java:58)
   at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235)
   at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)
   at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233)
   at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:191)
   at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:127)
   at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102)
   at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109)
   at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:298)
   at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:852)
   at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.process(Http11Protocol.java:588)
   at org.apache.tomcat.util.net.JIoEndpoint$Worker.run(JIoEndpoint.java:489)
   at java.lang.Thread.run(Thread.java:619)
Caused by: org.json.JSONException: A JSONObject text must begin with '{' at character 0
   at org.json.JSONTokener.syntaxError(JSONTokener.java:413)
   at org.json.JSONObject.<init>(JSONObject.java:180)
   at org.json.JSONObject.<init>(JSONObject.java:420)
   at org.springframework.extensions.webscripts.json.JSONReader.read(JSONReader.java:77)
   … 27 more

‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍‍

I don't understand why the same code run perfectly in the datalist component but not in my dashlet.The only difference is that i set a static noderef. All my column are succesfully set and the datatable is correctly setup except the data item.

Could please explain me what i did wrong.

thanks

P.S : Sorry for my english i'm french so … Smiley Wink
Labels:
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2 REPLIES 2

croc
Champ in-the-making
Champ in-the-making

‎04-11-2011 09:30 AM

Hi,

I got this type of an error before and the root cause of the error was the fact that I copied and pasted or replaced the file as it was said on the blog. I found out that the problem was with the version, there were lot of changes on the file on the latest version which means I had to use the latest page/code but editing it based on what was changed before, so my advice is check the version which the blog was on, and try run it on that version or make the changes that will suit the current version.

E.g, the previous version of alfresco was using form.get.js but the current (3.4.x) doesn't use it anymore. If you copy that back it causes errors on the form.

Thanks,
Croc
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cchumi
Champ in-the-making
Champ in-the-making

‎04-11-2011 09:39 AM

Thanks Croc for your answer.
But my code is written and copy form the same version actually mine 3.4.d.
I open the datagrid.js of this version , create a file called deminter-dat-lists.js and past the part who interest me.
I hope i understand what you mean in your answer.
My POST request in firebug is the same on my dashlet and on the datalist components.

Thanks

Cchumi
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