SB-forms Components & Configurations

List Of Components

Component	InputType	Description

Component	InputType	Description
Textbox	`text`	Component used to render textbox
Textarea	`textarea`	Component used to render textarea
Checkbox	`checkbox`	Component used to render checkbox
Select	`select`	Component used to render dropdown with single select
MultiSelect	`nestedselect`	Component used to render dropdown with multi select
Topic Selector	`topicselector`	Component used to render topic selector
Timer	`timer`	Component used to render time
Keywords	`keywords`	Component used to render input tags
Framework	`framework`	Component used to render dropdown with framework values
FrameworkCategorySelect	`frameworkCategorySelect`	Component used to render dropdown with framework categories.

Field Configuration Properties

{
    "code": string, // property to match the backend schema ("name", "description", etc...)
    "name": string, // name of the field ("Name", "Board", "Medium", "License", "Copyright Year", etc)
    "label": string, // title of the field 
    "placeholder": string, // placeholder text to appear within the field
    "description": string, // to specify description about the field and to show as tooltip
    "default": string, // specify default value
    "dataType": string, // to specify the datatype of the field outcome ("list", "number", "text")
    "inputType": string, // to map the field type and the component ("text", "textarea", "select", "nestedselect", etc)
    "editable": boolean, // to enable or disable the field
    "required": boolean, // to specify if the field is mandatory or not (currently, not used.)
    "visible": boolean, // to hide or show the field 
    "depends": array, // array of "code" to specify that this field is dependant on other fields
    "range": array, // Array or array of objects of inputs to fields such as "select", "nestedselect", "multiselect"
    "options": array/function/map, // to specify the inputs to fields such as "select", "nestedselect", "multiselect", "framework", "frameworkCategorySelect"
    "renderingHints": json, // to specify any additional configuration ex:({"class": "sb-g-col-lg-1 required"})
    "validations": array // Array of objects to specity the validations of a field. Each validation object takes properties such as "type", "message", "value", "criteria"
    "output": string, // this field is specific to framework terms and it's associations. The field will decide the property for the field outcome ex:("name", "label", "identifier")
    "sourceCategory": string, // this field is specific to framework categories to map the category and association ex: (to map "subjectIds" with "subject" or to map "targetMediumIds" with "medium")
    "terms": array, // Array or array of object of inputs to fields related to framework and it's categories
}

Sample Configuration for `name` field:

{
    "code": "name",
    "name": "Name",
    "label": "Title",
    "placeholder": "Title",
    "description": "Name of the content",
    "dataType": "text",
    "inputType": "text",
    "editable": true,
    "required": true, // currently not used to check if the field is mandatory. //
    "visible": true,
    "renderingHints": {
        "class": "sb-g-col-lg-1 required"
    },
    "validations": [
        {
            "type": "maxLength",
            "value": "120", // maximum number of characters
            "message": "Input is Exceeded"
        },
        {
            "type": "required", 
            "message": "Title is required"
        }
    ]
},

Custom invocation when a field’s value changes:

FORMCONTROL.valueChanges.pipe(
    tap((value) => {
      // custom logic
    })
);

Custom invocation when a dependant field values changes:

Custom validation:

Let’s say we have two fields, maxTime and warningTime and assume that the condition here is warningTime should not be greater than maxTime

We introduced a new type of validations called compare:

Here, criteria is a map which takes any comparison operator as the key and array of codes as value.

Following is our custom function to compare two fields and handle errors if any. The function takes two arguments - criteria and AbstractControl.

Now the function can be passed to Angular by doing Validators.compose as shown below:

Function compareFields will now be called whenever warningTime field is changes.

Custom Event Listener:

Angular by default provides two methods to listen to any field’s changes.

FormControl.valueChanges
FormControl.statusChanges

The above two methods will be immediately triggered when there is a change in the field.

Let’s assume we have a scenario where we need to make an async API call and make use of the API response, the above two methods will not help us as the API might have a delay.

To tackle this scenario, we will introduce a custom event emitter on the FormControl.

The following interface extends the default Angular FormControl and adds a RxJS Subject event emitter.

This will help us emit the event when the API returns a response

Any other fields that are dependant on this API response can now listen to this event emitter.

IN PROGRESS

Closure function:

A closure function takes the following objects as its arguments.

Sample Closure function:

Let’s say we have a field called framework. On change of framework field, if we have to invoke a logic, it can be achieved as shown below:

During the initialisation of the framework field, we will pass the following function to options property of framework field.

Single Sourcing Solution

SB-forms Components & Configurations

List Of Components

Field Configuration Properties

Sample Configuration for `name` field:

Custom invocation when a field’s value changes:

Custom invocation when a dependant field values changes:

Custom validation:

Custom Event Listener:

Closure function:

Sample Closure function:

Field Config for `framework`

List Of Components

Field Configuration Properties

Sample Configuration for name field:

Custom invocation when a field’s value changes:

Custom invocation when a dependant field values changes:

Custom validation:

Custom Event Listener:

Closure function:

Sample Closure function:

Field Config for framework

Sample Configuration for `name` field:

Field Config for `framework`