CODEWITHSUNDEEP
sapui5
Anto
Anto

Reputation: 4305

Shared Template Must Be Marked with templateShareable:true Error

I am creating an application with SAPUI5 (I am new with this library) and I run to the following strange error:

A shared template must be marked with templateShareable:true in the binding info -

Codewise, the cause is to be found in cartelleDisponibili: cartelleObtained inside the following Promise:

new Promise(
  function(resolve, reject) {
    cartellaData.results.forEach((cartella, index) => {
      oModel.read("/SheetSet", {
        filters: [
          new sap.ui.model.Filter("ZUSERNAME", sap.ui.model.FilterOperator.EQ, userData.Username),
          new sap.ui.model.Filter("ZTYPE", sap.ui.model.FilterOperator.EQ, 'P'),
          new sap.ui.model.Filter("ZCARTELLA", sap.ui.model.FilterOperator.EQ, cartella.ZCARTELLA),
        ],
        success: function(sheetData){
          var sheetsResults = [];
          for(var sheet = 0; sheet < sheetData.results.length; sheet++){
            sheetsResults.push({
              "Sheet": sheetData.results[sheet].ZSHEET,
              "CanWrite": sheetData.results[sheet].ZCANWRITE ? true : false, 
            });
          }
          cartelle.push({
            "Cartella": cartella.ZCARTELLA,
            "CanWrite": cartella.ZCANWRITE ? true : false,
            "Sheets": sheetsResults,
          });
        },
        error: function(oEvent) {}
      });
    });
  resolve(cartelle);
}).then(function(cartelleObtained) {
  var selectedUser = {
    title: `Utente ${userData.Username}`,
    editUsername: false,
    progNavi: false,
    progProd: true,
    userMainCredentials: {
      userName: userData.Username,
      type: "P",
      isEnabled: userData.isAbilitato,
      isAdmin: userData.isAdmin,
      firstName: userData.Nome,
      lastName: userData.Cognome,
    },
    cartelleDisponibili: cartelleObtained,
  };
  var oJSONModelNewUser = new JSONModel(selectedUser);
  _this.getView().setModel(oJSONModelNewUser, "userModel");
  if (!_this._dShowUser) {
    _this._dShowUser = sap.ui.xmlfragment("cabot.ui.wt.fragment.ShowUser", _this);
    _this.getView().addDependent(_this._dShowUser);
  }
  _this._dShowUser.open();
});

If I pass to cartelleDisponibili an array of items directly, the error is not thrown. I need to fix this issue also because this is causing some little odd behavior in the UI. How can I solve this issue?

Upvotes: 1

Views: 1665

Answers (1)

Boghyon Hoffmann
Boghyon Hoffmann

Reputation: 18044

You must be using an old version of UI5. At least, the error message is not part of the source code anymore since 1.38. The improved error message says a bit more:

During a clone operation, a template was found that neither was marked with 'templateShareable:true' nor 'templateShareable:false'. The framework won't destroy the template. This could cause errors (e.g. duplicate IDs) or memory leaks.

This indicates that, somewhere, you also must be defining an aggregation binding inside a control which is used as a template for another aggregation binding in an upper hierarchy level.

There are two solutions to get rid of the error message (depending on what you want):

  • If you want to have more control over the lifecycle of your template control(s), enable templateShareable (with value true) explicitly in each aggregation binding info object.
  • However, if you do not take care of such templates by yourself, let UI5 handle them by explicitly disabling templateShareable (with value false) in each aggregation binding info object.

For more information, take a look at the documentation Lifecycle of Binding Templates and at this blog post by Nabi.

Upvotes: 2

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