Why my filter is not working in v2.ODataModel “read”?

问题

I am using the OData model to read data. But it doesn't work. Check the code below:

getGuid: function(pernr) {
  var self = this;
  var url = "/PersonalDetailSet?$filter=Pernr eq '00000001'";
  self.setBusy(true);
  this.oModel.read(url, {
    success: function(res) {
      // ...
    },
    error: function() {
      // ...
    }
  });
}

I don't know why the filter in url is not working now?

回答1:

myODataModel.read("/PersonalDetailSet"/*no queries here!*/, {
  filters:[
    new Filter({ // required from "sap/ui/model/Filter"
      path: "myField",
      operator: FilterOperator.EQ, // required from "sap/ui/model/FilterOperator"
      value1: "..."
    })
  ],
  // ...
});

API reference: sap.ui.model.odata.v2.ODataModel#read
API reference: sap.ui.model.Filter

回答2:

First you check whether you are getting model in the scope or not. As i can see this.oModel which is not proper way of getting model. Better use this.getModel() or this.getView().getModel() and then check the call. Passing filter is not the right way but still it should work.

回答3:

If you want to apply additional URL Parameters in the read function you have to do this via the "urlParameters" parameter:

getGuid: function(pernr){
    var self = this;
    var url = "/PersonalDetailSet";
    self.setBusy(true);
    this.oModel.read(url, {
        urlParameters: {
            "$filter" : "Pernr eq '00000001'"
        },
        success: function(res){
            self.setBusy(false);
            self.guid = res.results[0].Guid;
        },
        error: function() {
            self.setBusy(false);
        }
    });
}

来源：https://stackoverflow.com/questions/45024087/why-my-filter-is-not-working-in-v2-odatamodel-read

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