Set up the condition that populates a page field

Level: intermediate

To implement the example:

1. Set up the page UI. Read more >>>
2. Set up the condition that populates the field. Read more >>>

Example

Set up the condition that populates the Description field on the custom request page. If the Name and Description field values match, populate the Description field using the new Name field value. Otherwise, leave the Description field value as is.

1. Set up the page UI

1. Create an app based on the Records & business processes template. Instructions: Create an app manually (user documentation).

   For this example, create a Requests app.

2. Open the form page in the Freedom UI Designer.

   For this example, open the Requests form page.

3. Add a field.

   For this example, add the field that contains the request description. To do this:

   1. Add a field of needed type to the working area of the Freedom UI Designer.

   2. Click and fill out the field properties.

      Element	Element type	Property	Property value
      Field that contains the request description	Text	Title	Description
      		Code	UsrDescription

4. Save the changes.

2. Set up the condition that populates the field

Configure the business logic in the Client Module Designer. For this example, set up the condition that populates the field.

1. Open the source code of the Freedom UI page. To do this, click .

2. Implement the base request handler.

   1. Go to the handlers schema section.

   2. Add a custom implementation of the crt.HandleViewModelAttributeChangeRequest base request handler.

      1. Run the handler when the value of any attribute changes, including changes made after loading the attribute values from the data source.
      2. Check the UsrName attribute value.
      3. Save the UsrDescription attribute value to the isFieldsShouldBeSynchronized constant.
      4. Check the UsrDescription attribute value. If the value matches the UsrName attribute value, set the UsrDescription attribute to the same value as the new UsrName attribute value. Otherwise, the UsrDescription attribute value remains unchanged.
   handlers schema section

   handlers: /**SCHEMA_HANDLERS*/[
       {
           request: "crt.HandleViewModelAttributeChangeRequest",
           /* The custom implementation of the system request handler. */
           handler: async (request, next) => {
               /* Check the request name. */
               if (request.attributeName === 'UsrName') {
                   const isFieldsShouldBeSynchronized = request.oldValue === await request.$context.UsrDescription;
                   /* Check the request description. */
                   if (isFieldsShouldBeSynchronized) {
                       /* If the "UsrDescription" attribute value matches the "UsrName" attribute value, set the "UsrDescription" attribute to the same value as the new "UsrName" attribute value. */
                       request.$context.UsrDescription = await request.$context.UsrName;
                   }
               }
               /* Call the next handler if it exists and return its result. */
               return next?.handle(request);
           }
       }
   ]/**SCHEMA_HANDLERS*/,

3. Save the changes.

View the result

To view the outcome of the example for the same Name and Description field values:

1. Open the Requests section.
2. Create a request that has an arbitrary name. For example, "Request's name."
3. Change the request description to an arbitrary value. For example, "Request's description."
4. Change the request name to an arbitrary value. For example, "Test."

As a result:

• Creatio will populate the Description field for requests whose previous values of the Name and Description fields match. View the result >>>

• Creatio will leave the Description field as is for requests whose previous values of the Name and Description fields differ.

  

Source code

UsrAppRequests_FormPage

/* Declare the AMD module. */
define("UsrAppRequests_FormPage", /**SCHEMA_DEPS*/[]/**SCHEMA_DEPS*/, function/**SCHEMA_ARGS*/()/**SCHEMA_ARGS*/ {
    return {
        viewConfigDiff: /**SCHEMA_VIEW_CONFIG_DIFF*/[
            {
                "operation": "insert",
                "name": "UsrName",
                "values": {
                    "layoutConfig": {
                        "column": 1,
                        "row": 1,
                        "colSpan": 1,
                        "rowSpan": 1
                    },
                    "type": "crt.Input",
                    "label": "$Resources.Strings.UsrName",
                    "control": "$UsrName"
                },
                "parentName": "LeftAreaProfileContainer",
                "propertyName": "items",
                "index": 0
            },
            /* Field that contains the request description. */
            {
                "operation": "insert",
                "name": "UsrDescription",
                "values": {
                    "layoutConfig": {
                        "column": 1,
                        "row": 2,
                        "colSpan": 1,
                        "rowSpan": 1
                    },
                    "type": "crt.Input",
                    "control": "$UsrDescription",
                    "label": "$Resources.Strings.UsrDescription",
                    "multiline": false
                },
                "parentName": "LeftAreaProfileContainer",
                "propertyName": "items",
                "index": 1
            }
        ]/**SCHEMA_VIEW_CONFIG_DIFF*/,
        viewModelConfig: /**SCHEMA_VIEW_MODEL_CONFIG*/{
            "attributes": {
                "UsrName": {
                    "modelConfig": {
                        "path": "PDS.UsrName"
                    }
                },
                "Id": {
                    "modelConfig": {
                        "path": "PDS.Id"
                    }
                },
                "UsrDescription": {
                    "modelConfig": {
                        "path": "PDS.UsrDescription"
                    }
                }
            }
        }/**SCHEMA_VIEW_MODEL_CONFIG*/,
        modelConfig: /**SCHEMA_MODEL_CONFIG*/{
            "dataSources": {
                "PDS": {
                    "type": "crt.EntityDataSource",
                    "config": {
                        "entitySchemaName": "UsrAppRequests"
                    }
                }
            }
        }/**SCHEMA_MODEL_CONFIG*/,
        handlers: /**SCHEMA_HANDLERS*/[
            {
                request: "crt.HandleViewModelAttributeChangeRequest",
                /* The custom implementation of the system request handler. */
                handler: async (request, next) => {
                    /* Check the request name. */
                    if (request.attributeName === 'UsrName') {
                        const isFieldsShouldBeSynchronized = request.oldValue === await request.$context.UsrDescription;
                        /* Check the request description. */
                        if (isFieldsShouldBeSynchronized) {
                            /* If the "UsrDescription" attribute value matches the "UsrName" attribute value, set the "UsrDescription" attribute to the same value as the new "UsrName" attribute value. */
                            request.$context.UsrDescription = await request.$context.UsrName;
                        }
                    }
                    /* Call the next handler if it exists and return its result. */
                    return next?.handle(request);
                }
            }
        ]/**SCHEMA_HANDLERS*/,
        converters: /**SCHEMA_CONVERTERS*/{}/**SCHEMA_CONVERTERS*/,
        validators: /**SCHEMA_VALIDATORS*/{}/**SCHEMA_VALIDATORS*/
    };
});

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Resources

Package with example implementation