Strapi基本概念及架構(Strapi介紹-中篇)

st=>start: Request請求
e=>end: Response最終回應!
cond1=>inputoutput: ROUTE(分配)
cond=>condition: have policy?
(有無分配規則？)
sub=>subroutine: Policy(執行規則)
(e.g., isAnthenticated?...)
op=>operation: Controller(控制器)
op2=>operation: Service(執行服務)

st(right)->cond1->cond
cond(no)->op()->op2(right)->e
cond(yes)->sub->op

Url: http://localhost:1337/restaurants
Method: GET

//axios 取得所有restaurants的資料
  axios({
    url: http://localhost:1337/restaurants,
    method: 'GET',
  })
  .then(res => {
    console.log(res.response.data);
  })
  .catch(err => {
    console.log('An error occurred:', err.response);
  });

{
  "routes": [
    {
      "method": "GET",
      "path": "/restaurants",
      "handler": "Restaurant.find", //controller的方法
      "config": {
        "policies": [ //如沒有則不處理policy
          "global.isAuthenticated"
        ]
      }
    }
  ]
}

module.exports = {
  /**
   * Retrieve records.
   *
   * @return {Array}
   */
  //可自訂使用的service方法
  find(ctx) {
    if (ctx.query._q) {
      //將執行product中的service的search方法
      return strapi.services.restaurant.search(ctx.query); 
      
    }
    return strapi.services.restaurant.find(ctx.query);
    //也可以不往service，直接丟出資料
    //return 'Hi'
  },
};

module.exports = {
  /**
   * Promise to fetch all records
   *
   * @return {Promise}
   */
  find(params, populate) {
    return strapi.query(Restaurant).find(params, populate);
  },
};

//API拿到的資料
[{"id":1,"restaurant":"Strapi Restaurant","description":"Strapi restaurant is a cosy restaurant delivering one of the very fastest and nicest dining experiences in the world, combining nods to tradition with fierce modernity, warmth with daring.","created_at":"2019-07-31T03:41:56.793Z","updated_at":"2019-07-31T03:44:09.395Z","categories":[{"id":1,"category":"Convenient","created_at":"2019-07-31T03:42:15.241Z","updated_at":"2019-07-31T07:17:32.389Z"},{"id":2,"category":"Time Saving","created_at":"2019-07-31T03:43:25.358Z","updated_at":"2019-07-31T03:43:25.364Z"}]}]

{
  "connection": "default",
  "collectionName": "restaurants",
  "info": {
    "name": "restaurant", //api名稱
    "description": "" //api描述
  },
  "options": {
    "increments": true,
    "timestamps": true,
    "comment": ""
    ...
    //選項解釋詳見原文
  },
  "attributes": {
    "restaurant": { //restaurant的欄位
      "unique": true, //驗證: 唯一
      "required": true, //驗證: 必須
      "type": "string" //格式: 字串
    },
    "description": {
      "type": "text" //格式: 文字
    },
    "categories": { //此為多個restaurants對多個categories(多對多)
      "collection": "category", //關聯的欄位(多個的集合)
      "via": "restaurants" //關聯到自己的欄位(多個)
    }
  }
}

{
  "attributes": {
    "owner": {
      "model": "user"
    }
  }
}

{
  "attributes": {
    "address": {
      "model": "address", //連結address
      "via": "user"
    }
  }
}

{
  "attributes": {
    "user": {
      "model": "user"
    }
  }
}

{
  "attributes": {
    "articles": {
      "collection": "article",
      "via": "author"
    }
  }
}

{
  "attributes": {
    "author": {
      "model": "user"
    }
  }
}

{
  "attributes": {
    "categories": {
      "collection": "category",
      "via": "restaurants"
    }
  }
}

{
  "attributes": {
    "restaurants": {
      "collection": "restaurant",
      "via": "categories",
      "dominant": true
    }
  }
}

[--debug|--quickstart|--dbclient=<dbclient> --dbhost=<dbhost> --dbport=<dbport> --dbname=<dbname> --dbusername=<dbusername> --dbpassword=<dbpassword> --dbssl=<dbssl> --dbauth=<dbauth> --dbforce]