List Of Components
Textbox
Textarea
Checkbox
Select
MultiSelect
Topic Selector
Timer
Keywords
Framework
FrameworkCategorySelect
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 "description": string, // to specify description about the field and to show as tooltip "placeholder": string, // placeholder text to appear within the field "required": boolean, // to specify if the field is mandatory or not (currently, not used.) "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) "visible": boolean, // to hide or show the field "editable": boolean, // to enable or disable the field "renderingHints": json, // to specify any additional configuration ex:({"class": "sb-g-col-lg-1 required"}) "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" "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 "validations": array // Array of objects to specity the validations of a field. Each validation object takes properties such as "type", "message", "value", "criteria" }
Sample Configuration for name
field:
{ "code": "name", "dataType": "text", "description": "Name of the content", "editable": true, "inputType": "text", "label": "Title", "name": "Name", "placeholder": "Title", "renderingHints": { "class": "sb-g-col-lg-1 required" }, "required": true, // currently not used to check if the field is mandatory. // "visible": true, "validations": [ { "type": "max", "value": "120", // maximum number of characters "message": "Input is Exceeded" }, { "type": "required", // "message": "Title is required" } ] },
Custom invocation when a field’s value changes:
name.valueChanges.pipe( tap((value) => { alert() }) );
Custom invocation when a dependant field values changes:
merge(..._.map([DependantFieldControl1, DependantFieldControl2], depend => depend.valueChanges)).pipe( tap((value) => { // your custom logic }) )
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
{ "code": "maxTime", "dataType": "text", "name": "MaxTimer", "default": "3600", "renderingHints": { "class": "sb-g-col-lg-1 required" }, "description": "MaxTime for the content", "inputType": "timer" }
{ "code": "warningTime", "dataType": "list", "name": "Warning Time", "depends": [ "maxTime" ], "inputType": "timer", "validations": [ { "type": "compare", "criteria": { "<": [ "maxTime" ] }, "message": "warning time should be less than max timer" } ] }
Following is our custom function to compare two fields and handle errors if any. The following function takes two arguments - criteria
and AbstractControl
.
compareFields(criteria, control: AbstractControl): ValidationErrors | null { // your custom code }
Closure function:
A closure function take the following objects as its arguments
control: FormControl // form control of the framework field depends: [FormControl, FormControl], // array of formcontrols of the fields that the framework field depends on (if any) formGroup: FormGroup // instance of the entire FormGroup loading: anonymous function // to notify about the data loading status loaded: anonymous function // to notify about the data loaded status
Sample Closure function:
Let’s say we have 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.
getFramework(control, depends: FormControl[], formGroup: FormGroup, loading, loaded) { const response = control.valueChanges.pipe( switchMap((value: any) => { return callFrameworkObservable() }) ); return response; }
Field Config for framework
{ "code": "framework", "visible": true, "editable": true, "dataType": "text", "label": "Course Type", "required": true, "name": "Framework", "inputType": "framework", "placeholder": "Select Course Type", "output": "identifier", "options": getFramework "validations": [ { "type": "required", "message": "Course Type is required" } ] }
To handle delay in APIs,
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