synt_backend/mysql/models/purchase.js

Synt light-weight node backend service

"use strict";
const { Model } = require("sequelize");
module.exports = (sequelize, DataTypes) => {
  class Purchase extends Model {
    /**
     * Helper method for defining associations.
     * This method is not a part of Sequelize lifecycle.
     * The `models/index` file will call this method automatically.
     */
    static associate(models) {
      // define association here
      Purchase.belongsTo(models.VME);
      Purchase.belongsTo(models.Journal);
      Purchase.belongsTo(models.Supplier);
      Purchase.belongsToMany(models.User, { through: "PurchaseUser" });
      Purchase.hasMany(models.PurchaseEntry);
      Purchase.hasMany(models.PurchaseFile);
    }
  }
  Purchase.init(
    {
      total_amount: DataTypes.DECIMAL,
      vat_amount: DataTypes.DECIMAL,
      description: DataTypes.STRING,
      invoice_date: DataTypes.DATE,
      due_date: DataTypes.DATE,
      paid_at: DataTypes.DATE,
      is_expense: DataTypes.BOOLEAN,
      reference: {
        type: DataTypes.VIRTUAL,
        get() {
          const id = this.getDataValue("id");
          const date = new Date(this.getDataValue("invoice_date"));
          return `AF${id}M${date.getMonth() + 1}J${date.getFullYear()}`;
        },
      },
      period: {
        type: DataTypes.VIRTUAL,
        get() {
          const date = new Date(this.getDataValue("invoice_date"));
          return `M${date.getMonth() + 1} Y${date.getFullYear()}`;
        },
      },
      payment: {
        type: DataTypes.TEXT,
        get() {
          return typeof this.getDataValue("payment") === "string"
            ? JSON.parse(this.getDataValue("payment"))
            : this.getDataValue("payment");
        },
        set(value) {
          this.setDataValue(
            "payment",
            typeof value === "string" ? value : JSON.stringify(value)
          );
        },
      },
      statement: DataTypes.STRING,
    },
    {
      sequelize,
      modelName: "Purchase",
    }
  );
  return Purchase;
};