feat(proejct): project curd.

src/commons/exceptions/Insufficient-balance.exception.ts

@@ -0,0 +1,6 @@
+export class InsufficientBalanceException extends Error {
+  constructor(curr: number, amount: number) {
+    super();
+    this.message = `余额不足。current balance：${curr}，change amount：${amount}`;
+  }
+}

src/commons/exceptions/application.exception.ts

@@ -0,0 +1,21 @@
+export class ApplicationException extends Error {
+  code: number;
+  error: Error;
+
+  constructor(
+    message:
+      | string
+      | { error?: Error; message?: string | object; code?: number },
+  ) {
+    if (message instanceof Object) {
+      super();
+      this.code = message.code;
+      this.error = message.error;
+      this.message = message.message as any;
+    } else if (typeof message === 'string') {
+      super((message as unknown) as any);
+    } else {
+      super((message as unknown) as any);
+    }
+  }
+}

src/commons/exceptions/duplicate-entity.exception.ts

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+import { ValidationError } from '@nestjs/common';
+import { WrongContentException } from './wrong-content.exception';
+
+export interface DuplicateFieldInfo {
+  property: string;
+  value: any;
+  name?: string;
+  message?: string;
+}
+
+export class DuplicateEntityException extends WrongContentException {
+  errorObj: { [p: string]: any; message: ValidationError[] };
+  constructor(exceptionInfo: DuplicateFieldInfo[]) {
+    super(DuplicateEntityException.getValidationError(exceptionInfo));
+  }
+
+  private static getValidationError(
+    exceptionInfo: DuplicateFieldInfo[],
+  ): ValidationError[] {
+    return exceptionInfo.map((item) => {
+      const property: string = item.property;
+      const value: any = item.value;
+      const message: string = item.message
+        ? item.message
+        : `${item.name || ''}已存在相同的值「${item.value}」`;
+      return {
+        property,
+        value,
+        constraints: { duplicate: message },
+        target: undefined,
+        children: [],
+      } as ValidationError;
+    });
+  }
+}

src/commons/exceptions/lock-failed.exception.ts

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+export class LockFailedException extends Error {
+  constructor(lockId: any) {
+    super();
+    this.message = `加锁失败。目标：${lockId}`;
+  }
+}

src/commons/exceptions/value-out-of-range.exception.ts

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+import { ValidationError } from '@nestjs/common';
+import { WrongContentException } from './wrong-content.exception';
+
+export interface ValueOutOfRangeInfo {
+  property: string;
+  value: any;
+  range: string;
+  name?: string;
+  message?: string;
+}
+
+export class ValueOutOfRangeException extends WrongContentException {
+  errorObj: { [p: string]: any; message: ValidationError[] };
+  constructor(exceptionInfo: ValueOutOfRangeInfo[]) {
+    super(ValueOutOfRangeException.getValidationError(exceptionInfo));
+  }
+
+  private static getValidationError(
+    exceptionInfo: ValueOutOfRangeInfo[],
+  ): ValidationError[] {
+    return exceptionInfo.map((item) => {
+      const property: string = item.property;
+      const value: any = item.value;
+      const message: string = item.message
+        ? item.message
+        : `${item.name || ''}的取值范围应是${item.range}`;
+      return {
+        property,
+        value,
+        constraints: { duplicate: message },
+        target: undefined,
+        children: [],
+      } as ValidationError;
+    });
+  }
+}

src/commons/exceptions/wrong-content.exception.ts

@@ -0,0 +1,7 @@
+import { UnprocessableEntityException, ValidationError } from '@nestjs/common';
+
+export class WrongContentException extends UnprocessableEntityException {
+  constructor(exceptionInfo: ValidationError[]) {
+    super(exceptionInfo);
+  }
+}