Version: 8.2

Manage the system setting values on a page

Level: intermediate

To implement the example:

Set up the page UI. Read more >>>
Set up how to manage the system setting values. Read more >>>

Example

Display the following system setting values on the custom request page:

The number of the last created request increased by 1. Increase the number when creating a new request or copying an existing request.
The city of the current user.

1. Set up page UI

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

For this example, create a Requests app.

Add system settings.

For this example, add the following system settings:

system setting that stores the request number
system setting that stores the city name

To do this:

Open the System settings section. To do this, click in the top right → System setup → System settings.

Click Add setting and fill out the system setting properties.

Element	Property	Property value
System setting that stores the request number	Name	Request number
	Code	UsrLastRequestNumber
	Type	Integer
	Default value	0
System setting that stores the city name	Name	City
	Code	UsrDefaultCity
	Type	Lookup
	Lookup	City
	Default value	New York

Open the form page in the Freedom UI Designer.

For this example, open the Requests form page.

Add labels.

For this example, add the following labels:

label of the request number
label that contains the value of the request number from the system setting
label of the current user city
label that contains the value of the current user city from the system setting

To do this:

Add a label to the working area of the Freedom UI Designer.

Click and fill out the label properties.

Element	Property	Property value
Label of the request number	Text	Request number
	Style	Caption
	Text color	#757575
Label that contains the value of the request number from the system setting	Text	Request number (value)
	Style	Body
Label of the current user city	Text	City
	Style	Caption
	Text color	#757575
Label that contains the value of the current user city from the system setting	Text	City (value)
	Style	Body

Save the changes.

2. Set up how to manage the system setting values

Configure the business logic in the Client Module Designer. For this example, set up how to manage the system setting values.

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

Add the dependencies. To do this, add @creatio-devkit/common library as a dependency. The library includes the SysSettingsService service to manage system settings.

AMD module dependencies
/* Declare the AMD module. */
define("UsrRequests_FormPage", /**SCHEMA_DEPS*/["@creatio-devkit/common"] /**SCHEMA_DEPS*/, function/**SCHEMA_ARGS*/(sdk)/**SCHEMA_ARGS*/ {
    return {
        ...
    }
});

Add an attribute.

Go to the viewModelConfigDiff schema section → attributes configuration object.
Add a LastRequestNumber attribute that stores data of the "Request number" ("UsrLastRequestNumber" code) system setting.
Add a DefaultCity attribute that stores data of the "City" ("UsrDefaultCity" code) system setting.

viewModelConfigDiff schema section
viewModelConfigDiff: /**SCHEMA_VIEW_MODEL_CONFIG_DIFF*/[
    {
        "operation": "merge",
        "path": [
            "attributes"
        ],
        "values": {
            ...,
            /* The attribute that stores data of the "Request number" ("UsrLastRequestNumber" code) system setting. */
            "LastRequestNumber": {},
            /* The attribute that stores data of the "City" ("UsrDefaultCity" code) system setting. */
            "DefaultCity": {},
        }
    },
    ...
]/**SCHEMA_VIEW_MODEL_CONFIG_DIFF*/,

Bind an attribute to the label.

Go to the viewConfigDiff schema section → UsrRequestNumberValue element.
Bind the $LastRequestNumber attribute to the caption property.
Go to the UsrCityValue element.
Bind the $DefaultCity attribute to the caption property.

viewConfigDiff schema section
viewConfigDiff: /**SCHEMA_VIEW_CONFIG_DIFF*/[
    ...,
    /* Label that contains the value of the request number from the system setting. */
    {
        "operation": "insert",
        "name": "UsrRequestNumberValue",
        "values": {
            ...,
            /* The property that handles the text contained in the element. Bound to the "LastRequestNumber" attribute. */
            "caption": "$LastRequestNumber",
        },
        ...
    },
    ...,
    /* Label that contains the value of the current user city from the system setting. */
    {
        "operation": "insert",
        "name": "UsrCityValue",
        "values": {
            ...,
            /* The property that handles the text contained in the element. Bound to the "DefaultCity" attribute. */
            "caption": "$DefaultCity",
        },
        ...
    },
    ...,
]/**SCHEMA_VIEW_CONFIG_DIFF*/,

Implement the base request handler.

Go to the handlers schema section.
Add a custom implementation of the crt.HandleViewModelResumeRequest base request handler.
1. Create an instance of the system setting service from @creatio-devkit/common.
2. Retrieve the value of the "City" ("UsrDefaultCity" code) system setting and specify the value in the DefaultCity attribute.
3. Retrieve the page state.
4. Check the page state. If the page is new or copies an existing page, retrieve the value of the "Request number" ("UsrLastRequestNumber" code) system setting, increase the value of the system setting, specify the new value in the LastRequestNumber attribute.

handlers schema section
handlers: /**SCHEMA_HANDLERS*/[
    {
        request: "crt.HandleViewModelResumeRequest",
        /* The custom implementation of the system request handler. */
        handler: async (request, next) => {
            /* Wait for the rest of the initialization handlers to finish. */
            await next?.handle(request);
            /* Create an instance of the system setting service from "@creatio-devkit/common." */
            const sysSettingsService = new sdk.SysSettingsService();
            /* Retrieve the value of the "City" ("UsrDefaultCity" code) system setting. */
            const defaultCity = await sysSettingsService.getByCode('UsrDefaultCity');
            /* Specify the value of the "City" ("UsrDefaultCity" code) system setting in the "DefaultCity" attribute. */
            request.$context.DefaultCity = defaultCity.displayValue;
            /* Retrieve the page state. */
            const cardState = await request.$context.CardState;
            /* Check the page state. If the page is new or copies an existing page, increase the value of the "Request number" ("UsrLastRequestNumber" code) system setting. */
            if (cardState === 'add' || cardState === 'copy') {
                /* Retrieve the value of the "Request number" ("UsrLastRequestNumber" code) system setting. */
                const lastNumber = await sysSettingsService.getByCode('UsrLastRequestNumber');
                /* Send a request to update the value of the "Request number" ("UsrLastRequestNumber" code) system setting. */
                await sysSettingsService.update({
                    code: 'UsrLastRequestNumber',
                        /* The new value is higher than the previous one by 1. */
                        value: ++lastNumber.value
                });
                /* Specify the new value of the "Request number" ("UsrLastRequestNumber" code) system setting in the "LastRequestNumber" attribute. */
                request.$context.LastRequestNumber = lastNumber.value;
                /* Call the next handler if it exists and return its result. */
                return next?.handle(request);
            }
        },
    },
] /**SCHEMA_HANDLERS*/,

Save the changes.

View the result

Open the Requests section.
Create a request that has an arbitrary name. For example, "Vacation."
Save the changes.
Copy an existing request. For example, "Vacation." To do this, click → Copy.
Set an arbitrary request name. For example, "Sick leave."

As a result, Creatio will display the number of the last created request, increased by 1, and the city of the current user on the page of a new and copied request. The values will be retrieved from the corresponding system settings. View the result >>>

Source code

UsrRequests_FormPage
/* Declare the AMD module. */
define("UsrRequests_FormPage", /**SCHEMA_DEPS*/["@creatio-devkit/common"]/**SCHEMA_DEPS*/, function/**SCHEMA_ARGS*/(sdk)/**SCHEMA_ARGS*/ {
    return {
        viewConfigDiff: /**SCHEMA_VIEW_CONFIG_DIFF*/[
            {
                "operation": "merge",
                "name": "Feed",
                "values": {
                    "dataSourceName": "PDS",
                    "entitySchemaName": "UsrRequests"
                }
            },
            {
                "operation": "merge",
                "name": "AttachmentList",
                "values": {
                    "columns": [
                        {
                            "id": "745d2e48-e749-452e-b3cf-532a8c4b1a0b",
                            "code": "AttachmentListDS_Name",
                            "caption": "#ResourceString(AttachmentListDS_Name)#",
                            "dataValueType": 28,
                            "width": 200
                        }
                    ]
                }
            },
            {
                "operation": "insert",
                "name": "UsrName",
                "values": {
                    "layoutConfig": {
                        "column": 1,
                        "row": 1,
                        "colSpan": 1,
                        "rowSpan": 1
                    },
                    "type": "crt.Input",
                    "label": "$Resources.Strings.UsrName",
                    "control": "$UsrName",
                    "labelPosition": "auto"
                },
                "parentName": "SideAreaProfileContainer",
                "propertyName": "items",
                "index": 0
            },
            /* Label of the request number. */
            {
                "operation": "insert",
                "name": "UsrRequestNumber",
                "values": {
                    "layoutConfig": {
                        "column": 1,
                        "row": 2,
                        "colSpan": 1,
                        "rowSpan": 1
                    },
                    "type": "crt.Label",
                    "caption": "#MacrosTemplateString(#ResourceString(UsrRequestNumber_caption)#)#",
                    "labelType": "caption",
                    "labelThickness": "default",
                    "labelEllipsis": false,
                    "labelColor": "#757575",
                    "labelBackgroundColor": "transparent",
                    "labelTextAlign": "start",
                    "visible": true
                },
                "parentName": "SideAreaProfileContainer",
                "propertyName": "items",
                "index": 1
            },
            /* Label that contains the value of the request number from the system setting. */
            {
                "operation": "insert",
                "name": "UsrRequestNumberValue",
                "values": {
                    "layoutConfig": {
                        "column": 1,
                        "row": 3,
                        "colSpan": 1,
                        "rowSpan": 1
                    },
                    "type": "crt.Label",
                    /* The property that handles the text contained in the element. Bound to the "LastRequestNumber" attribute. */
                    "caption": "$LastRequestNumber",
                    "labelType": "body",
                    "labelThickness": "default",
                    "labelEllipsis": false,
                    "labelColor": "auto",
                    "labelBackgroundColor": "transparent",
                    "labelTextAlign": "start",
                    "visible": true
                },
                "parentName": "SideAreaProfileContainer",
                "propertyName": "items",
                "index": 2
            },
            /* Label of the current user city. */
            {
                "operation": "insert",
                "name": "UsrCity",
                "values": {
                    "layoutConfig": {
                        "column": 1,
                        "colSpan": 1,
                        "rowSpan": 1,
                        "row": 4
                    },
                    "type": "crt.Label",
                    "caption": "#MacrosTemplateString(#ResourceString(UsrCity_caption)#)#",
                    "labelType": "caption",
                    "labelThickness": "default",
                    "labelEllipsis": false,
                    "labelColor": "#757575",
                    "labelBackgroundColor": "transparent",
                    "labelTextAlign": "start",
                    "visible": true
                },
                "parentName": "SideAreaProfileContainer",
                "propertyName": "items",
                "index": 3
            },
            /* Label that contains the value of the current user city from the system setting. */
            {
                "operation": "insert",
                "name": "UsrCityValue",
                "values": {
                    "layoutConfig": {
                        "column": 1,
                        "colSpan": 1,
                        "rowSpan": 1,
                        "row": 5
                    },
                    "type": "crt.Label",
                    /* The property that handles the text contained in the element. Bound to the "DefaultCity" attribute. */
                    "caption": "$DefaultCity",
                    "labelType": "body",
                    "labelThickness": "default",
                    "labelEllipsis": false,
                    "labelColor": "auto",
                    "labelBackgroundColor": "transparent",
                    "labelTextAlign": "start",
                    "visible": true
                },
                "parentName": "SideAreaProfileContainer",
                "propertyName": "items",
                "index": 4
            }
        ]/**SCHEMA_VIEW_CONFIG_DIFF*/,
        viewModelConfigDiff: /**SCHEMA_VIEW_MODEL_CONFIG_DIFF*/[
            {
                "operation": "merge",
                "path": [
                    "attributes"
                ],
                "values": {
                    "UsrName": {
                        "modelConfig": {
                            "path": "PDS.UsrName"
                        }
                    },
                    /* The attribute that stores data of the "Request number" ("UsrLastRequestNumber" code) system setting. */
                    "LastRequestNumber": {},
                    /* The attribute that stores data of the "City" ("UsrDefaultCity" code) system setting. */
                    "DefaultCity": {},
                }
            },
            {
                "operation": "merge",
                "path": [
                    "attributes",
                    "Id",
                    "modelConfig"
                ],
                "values": {
                    "path": "PDS.Id"
                }
            }
        ]/**SCHEMA_VIEW_MODEL_CONFIG_DIFF*/,
        modelConfigDiff: /**SCHEMA_MODEL_CONFIG_DIFF*/[
            {
                "operation": "merge",
                "path": [],
                "values": {
                    "primaryDataSourceName": "PDS"
                }
            },
            {
                "operation": "merge",
                "path": [
                    "dataSources"
                ],
                "values": {
                    "PDS": {
                        "type": "crt.EntityDataSource",
                        "config": {
                            "entitySchemaName": "UsrRequests"
                        },
                        "scope": "page"
                    }
                }
            }
        ]/**SCHEMA_MODEL_CONFIG_DIFF*/,
        handlers: /**SCHEMA_HANDLERS*/[
            {
                request: "crt.HandleViewModelResumeRequest",
                /* The custom implementation of the system request handler. */
                handler: async (request, next) => {
                    /* Wait for the rest of the initialization handlers to finish. */
                    await next?.handle(request);
                    /* Create an instance of the system setting service from "@creatio-devkit/common." */
                    const sysSettingsService = new sdk.SysSettingsService();
                    /* Retrieve the value of the "City" ("UsrDefaultCity" code) system setting. */
                    const defaultCity = await sysSettingsService.getByCode('UsrDefaultCity');
                    /* Specify the value of the "City" ("UsrDefaultCity" code) system setting in the "DefaultCity" attribute. */
                    request.$context.DefaultCity = defaultCity.displayValue;
                    /* Retrieve the page state. */
                    const cardState = await request.$context.CardState;
                    /* Check the page state. If the page is new or copies an existing page, increase the value of the "Request number" ("UsrLastRequestNumber" code) system setting. */
                    if (cardState === 'add' || cardState === 'copy') {
                        /* Retrieve the value of the "Request number" ("UsrLastRequestNumber" code) system setting. */
                        const lastNumber = await sysSettingsService.getByCode('UsrLastRequestNumber');
                        /* Send a request to update the value of the "Request number" ("UsrLastRequestNumber" code) system setting. */
                        await sysSettingsService.update({
                            code: 'UsrLastRequestNumber',
                                /* The new value is higher than the previous one by 1. */
                                value: ++lastNumber.value
                        });
                        /* Specify the new value of the "Request number" ("UsrLastRequestNumber" code) system setting in the "LastRequestNumber" attribute. */
                        request.$context.LastRequestNumber = lastNumber.value;
                        /* 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*/
    };
});

Resources

Package with example implementation

1. Set up page UI​

2. Set up how to manage the system setting values​

View the result​

Source code​

Resources​

1. Set up page UI

2. Set up how to manage the system setting values

View the result

Source code

Resources