Question Re: oModel.create is not a function in Technology Q&A

oModel.create is not a function

chaudhary777 — Thu, 19 Sep 2024 11:22:14 GMT

This is my controller for adding data in backend through UI , but i am getting error oModel.create is not a function
onOpenDialog: function () {

if (!this._oDialog) {

this._oDialog = new Dialog({

title: "Add New Product",

content: [

new VBox({

items: [

new Input("dialogInputID", {

placeholder: "Enter Product ID"

}),

new Input("dialogInputName", {

placeholder: "Enter Product Name"

}),

new Input("dialogInputDescription", {

placeholder: "Enter Description"

}),

new Input("dialogInputReleaseDate", {

placeholder: "Enter Release Date"

})

]

})

beginButton: new Button({

text: "Submit",

press: this.onAddProduct.bind(this)

}),

endButton: new Button({

text: "Cancel",

press: function () {

this._oDialog.close();

}.bind(this)

})

});

this.getView().addDependent(this._oDialog);

}

this._oDialog.open();

onAddProduct: function () {

// Retrieve data from dialog inputs

var oID = sap.ui.getCore().byId("dialogInputID").getValue();

var oName = sap.ui.getCore().byId("dialogInputName").getValue();

var oDescription = sap.ui.getCore().byId("dialogInputDescription").getValue();

var oReleaseDate = sap.ui.getCore().byId("dialogInputReleaseDate").getValue();

// Validate inputs

if (!oID || !oName || !oDescription || !oReleaseDate) {

sap.m.MessageToast.show("Please fill in all fields.");

return;

}

// Create new product object

var oNewProduct = {

ID: parseInt(oID), // Ensure ID is an integer

Name: oName,

Description: oDescription,

ReleaseDate: oReleaseDate // Format date as required

};

// Get the OData model

var oModel = this.getView().getModel("ODataM1");

if (oModel) {

// Create a new entry in the backend

oModel.create("/Products", oNewProduct, {

success: function () {

console.log("Product added successfully!"); // Debugging statement

sap.m.MessageToast.show("Product added successfully!");

// Close the dialog

if (this._oDialog) {

this._oDialog.close(); // Close the dialog

} else {

console.error("Dialog instance is not available.");

}

// Refresh the table to display new data

var oTable = this.getView().byId("productTable");

if (oTable) {

oTable.getBinding("items").refresh(); // Refresh the table binding

}

}.bind(this),

error: function (oError) {

console.error("Error adding product:", oError);

sap.m.MessageToast.show("Error adding product.");

}

});

} else {

console.error("The OData model is not instantiated or is not available.");

}

Re: oModel.create is not a function

junwu — Thu, 19 Sep 2024 12:04:44 GMT

var oModel = this.getView().getModel("ODataM1"); check what you get there during debug.

what's the model version? v2 or v4?

Re: oModel.create is not a function

chaudhary777 — Thu, 19 Sep 2024 12:18:33 GMT

Re: oModel.create is not a function

junwu — Thu, 19 Sep 2024 12:27:29 GMT

that's the issue, for odata call, v4 is completely different from v2.

Re: oModel.create is not a function

junwu — Thu, 19 Sep 2024 12:28:24 GMT

your code is for v2, google how to do crud with v4.

Re: oModel.create is not a function

karthikarjun — Sat, 21 Sep 2024 14:33:44 GMT

Hello chaudhary777 -

Could you refer the below code and blogs. I hope it will guide you some direction.

let oModel = this.getView().getModel(); let oBinding = oModel.bindList("/ENTITY"); oBinding .create({ "<YOUR ACTION>" });

Reference:

Step 6: Create and Edit - Documentation - Demo Kit - SAPUI5 SDK (ondemand.com)

Implementing CRUD Operations in OData v4 - SAP Community

Regards,

Karthik Arjun

SAP Full-Stack Development

Re: oModel.create is not a function

Bibhu — Sun, 22 Sep 2024 03:38:43 GMT

HI @chaudhary777 ,

The error oModel.create is not a function that suggests that your model isn't an OData model or isn't instantiated correctly. Make sure that ODataM1 is set as an OData model

(i.e sap.ui.model.odata.v2.ODataModel) either in your manifest.json.

"models": { "ODataM1": { "type": "sap.ui.model.odata.v2.ODataModel", "settings": { "serviceUrl": "/path/to/your/odata/service/" } } }

or Component.js

var oModel = new sap.ui.model.odata.v2.ODataModel("/path/to/your/odata/service/"); this.setModel(oModel, "ODataM1");

Also, double-check that this.getView().getModel("ODataM1") is returning the correct model. You can verify this by logging it or using this.getOwnerComponent().getModel("ODataM1") it to access the model.

Correct Version of ODataModel: Ensure you're using the correct version of the ODataModel (v2 or v4). The create method might differ depending on the version. If you're using it, the create method is different and might require a different approach.

create operation in OData V4 Model (sap.ui.model.odata.v4.ODataModel):

// Assuming the OData V2 model is already instantiated and set to the view or component var oModel = this.getView().getModel("ODataM1"); var oNewProduct = { ID: 101, Name: "New Product", Description: "A new product description", ReleaseDate: "2023-09-22" }; oModel.create("/Products", oNewProduct, { success: function () { sap.m.MessageToast.show("Product added successfully!"); }, error: function (oError) { sap.m.MessageToast.show("Error adding product."); console.error(oError); } });

create operation in OData V4.

// Assuming the OData V4 model is already instantiated and set to the view or component var oModel = this.getView().getModel("ODataM1"); var oContextBinding = oModel.bindContext("/Products"); var oNewProduct = { ID: 101, Name: "New Product", Description: "A new product description", ReleaseDate: "2023-09-22" }; // Use the `create` method in V4 via a `ContextBinding` oContextBinding.create(oNewProduct).created().then(function () { sap.m.MessageToast.show("Product added successfully!"); }).catch(function (oError) { sap.m.MessageToast.show("Error adding product."); console.error(oError); });

Key Differences:

V2: create is directly available on the ODataModel.
V4: You need to bind a context and then use create through the ContextBinding.

Reference :
ODATA V4 Creating Bindings
ODATA V4 Tutorial: Step 6: Create and Edit
OData V2 Model

@chaudhary777 Including a call stack is helpful when raising an issue, as it provides more context and can make debugging faster for others.

BR,
@Bibhu