'use strict';
const {
  Model
} = require('sequelize');
module.exports = (sequelize, DataTypes) => {
  class Article 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) {
      // 文章与分类的关联关系
      Article.belongsTo(models.Category, {
        foreignKey: 'category',
        as: 'categoryInfo'
      });
    }
  }
  Article.init({
    title: {
      type:DataTypes.TEXT,
      allowNull:false,
      validate:{
        notNull:{
          msg:'标题必须存在'
        },
        notEmpty:{
          msg:'标题不能为空'
        },
        len:{
          args:[1,500],
          msg:'标题长度需要在1～500个字符之间'
        }
      }
    },
    content: DataTypes.TEXT('long'),
    type:DataTypes.INTEGER,
    img:DataTypes.TEXT,
    date:DataTypes.DATE,
    author:DataTypes.TEXT,
    category:DataTypes.INTEGER,
    crop:DataTypes.INTEGER,
    seoKeyword:DataTypes.TEXT,
    seoDescription:DataTypes.TEXT,
  }, {
    sequelize,
    modelName: 'Article',
  });
  return Article;
};