feat: add isBooleanField decorator

src/common/@types/interfaces/validator.interface.ts

@@ -1,39 +1,39 @@
 export interface BaseValidator {
-  required?: boolean
-  message?: string
+  required?: boolean;
+  message?: string;
 }
 
 interface BaseArrayValidator {
-  arrayMaxSize?: number
-  arrayMinSize?: number
-  each?: boolean
+  arrayMaxSize?: number;
+  arrayMinSize?: number;
+  each?: boolean;
 }
 
 export interface DateFieldOptions extends BaseValidator, BaseArrayValidator {
-  greaterThan?: boolean
-  lessThan?: boolean
-  date?: Date // Date object to compare against
+  greaterThan?: boolean;
+  lessThan?: boolean;
+  date?: Date; // Date object to compare against
 };
 
 export interface NumberFieldOptions extends BaseValidator, BaseArrayValidator {
-  min?: number
-  max?: number
-  int?: boolean
-  positive?: boolean
+  min?: number;
+  max?: number;
+  int?: boolean;
+  positive?: boolean;
 }
 
 export interface StringFieldOptions extends BaseValidator, BaseArrayValidator {
-  trim?: boolean
-  regex?: RegExp
-  minLength?: number
-  maxLength?: number
-  sanitize?: boolean
+  trim?: boolean;
+  regex?: RegExp;
+  minLength?: number;
+  maxLength?: number;
+  sanitize?: boolean;
 }
 
 export interface FileValidator {
-  fileType?: RegExp | string
-  fileSize?: number
-  required?: boolean
+  fileType?: RegExp | string;
+  fileSize?: number;
+  required?: boolean;
 }
 
 export type MinMaxLengthOptions = Pick<StringFieldOptions, "each" | "minLength" | "maxLength">;
@@ -42,8 +42,7 @@ export type EnumFieldOptions = BaseValidator & BaseArrayValidator;
 export type EmailFieldOptions = EnumFieldOptions;
 export type UUIDFieldOptions = EnumFieldOptions;
 
-export interface IsNestedFieldOptions extends Omit<BaseValidator, "message"> ,BaseArrayValidator{
-  arrayMinSize: number
-  arrayMaxSize: number
+export interface IsNestedFieldOptions extends Omit<BaseValidator, "message">, BaseArrayValidator {
+  arrayMinSize: number;
+  arrayMaxSize: number;
 }
-

src/common/decorators/validation/is-boolean-field.decorator.ts

@@ -0,0 +1,61 @@
+import { applyDecorators } from "@nestjs/common";
+import {
+  ArrayNotEmpty,
+  IsArray,
+  IsBoolean,
+  IsNotEmpty,
+  IsOptional,
+} from "class-validator";
+import { i18nValidationMessage } from "nestjs-i18n";
+import { ToBoolean } from "./transform.decorator";
+import { BaseValidator } from "@common/@types";
+
+type IsBooleanValidator = BaseValidator & { each?: boolean };
+
+export function IsBooleanField(options_?: IsBooleanValidator) {
+  const options: IsBooleanValidator = {
+    each: false,
+    required: true,
+    ...options_,
+  };
+  const decoratorsToApply = [
+    IsBoolean({
+      message: i18nValidationMessage("validation.isDataType", {
+        type: "boolean",
+      }),
+      each: options.each,
+    }),
+    ToBoolean(),
+  ];
+
+  if (options.required) {
+    decoratorsToApply.push(
+      IsNotEmpty({
+        message: i18nValidationMessage("validation.isNotEmpty"),
+        each: options.each,
+      }),
+    );
+
+    if (options.each) {
+      decoratorsToApply.push(
+        ArrayNotEmpty({
+          message: i18nValidationMessage("validation.isNotEmpty"),
+        }),
+      );
+    }
+  } else {
+    decoratorsToApply.push(IsOptional());
+  }
+
+  if (options.each) {
+    decoratorsToApply.push(
+      IsArray({
+        message: i18nValidationMessage("validation.isDataType", {
+          type: "array",
+        }),
+      }),
+    );
+  }
+
+  return applyDecorators(...decoratorsToApply);
+}