Vue.jsとPhpで見積りシステム（６）〜Vue.jsコーディング拡張編〜

消費税と合計金額を表示する
実行画面
1. PC用
2. SP用
消費税と合計金額を表示する

Mistumori.vueファイルを修正し、見積り明細を表示するようにしました。
明細中商品と金額、合計金額と消費税を表示できるようにします。
それぞれの金額は　算出プロパティを利用して計算しています。
その他Bootstrapを導入しているのでレスポンシブにも対応させています。
% vi src/components/Mitsumori.vue

<template>
  <div>
    <div class="container">
      <div class="row">

        <div class="col-12">
          <h5>PCショップ</h5>
          <h1>お見積り</h1>
        </div>

        <div class="form-group col-12 col-md-7">
          <form>
            <div class="col-12">      
              <label for="cpu">CPUを選んでください:</label>
              <select id="cpu" v-model="selected_cpu_id" class="form-control">
                <option v-for="(cpu, ix) in cpus" :key="ix" v-bind:value="ix" >{{ cpu.name }}</option>
              </select>
            </div>

            <div v-if="selected_cpu_id !== null">
              <hr>
              <div class="col-12">      
                <label for="mother_board">マザーボードを選んでください:</label>
                <select id="mother_board" v-model="selected_mother_board_id" class="form-control">
                  <option v-for="(mother_board, ix) in mother_boards" :key="ix" v-bind:value="ix" >{{ mother_board.name }}</option>
                </select>
              </div>
            </div>

            <div v-if="selected_mother_board_id !== null">
              <hr>
              <div class="col-12">      
                <label for="video_card">ビデオカードを選んでください:</label>
                <select id="video_card" v-model="selected_video_card_id" class="form-control">
                  <option v-for="(video_card, ix) in video_cards" :key="ix" v-bind:value="ix" >{{ video_card.name }}</option>
                </select>
              </div>
            </div>

            <div v-if="selected_video_card_id !== null">
              <hr>
              <div class="col-12">      
                <label for="storage">ストレージを選んでください:</label>
                <select id="storage" v-model="selected_storage_id" class="form-control">
                  <option v-for="(storage, ix) in storages" :key="ix" v-bind:value="ix" >{{ storage.name }}</option>
                </select>
              </div>
            </div>

            <div v-if="selected_storage_id !== null">
              <hr>
              <div class="col-12">      
                <label for="storage">PCケースを選んでください:</label>
                <select id="storage" v-model="selected_pc_case_id" class="form-control">
                  <option v-for="(pc_case, ix) in pc_cases" :key="ix" v-bind:value="ix" >{{ pc_case.name }}</option>
                </select>
              </div>
            </div>
          </form>
        </div>

        <div class="col-12 col-md-5">  
          <div class="card" style="width: 100%;">
            <div class="card-body">
              <h4 class="card-title">見積り明細</h4>
              <hr>
              <div class="card-text col-12" v-for="(item, ix) in selected" :key=ix>
                <div class="row">
                  <div class="item-name col-8">{{item.name}}</div>
                  <div class="item-price col-4">{{item.price|japrice}}</div>
                </div>
              </div>
              <hr>
              <div class="card-text col-12">
                <div class="row">
                  <div class="item-name col-8">合計金額</div>
                  <div class="item-price col-4">{{all_price|japrice}}</div>
                </div>
                <div class="row">
                  <div class="item-name col-8">消費税({{tax.rate}}%)</div>
                  <div class="item-price col-4">{{tax_price|japrice}}</div>
                </div>
              </div>
              <hr>
              <div class="card-text col-12">
                <div class="row">
                  <div class="item-name col-8">お支払金額</div>
                  <div class="item-price col-4">{{total_price|japrice}}</div>
                </div>
              </div>

              <div class="card-text col-12" v-if="total_price > 0">
                <hr>
                <div class="row">
                  <button class="btn btn-primary btn-block">注文はこちら</button>
                </div>
              </div>
            </div>
          </div>
        </div>
      </div>
    </div>
  </div>
</template>

<script>

import axios from "axios";

export default {
  name: 'Mitsumori',
  props: {
    msg: String
  },
  // フィルター
  filters: {
     japrice: function(str){
       if(isNaN(str)){
          return ""
       }else{
          let num = parseInt(str, 10)
          return '¥'+num.toLocaleString()
       }
     }
  },
  data: function() {
    return {
      tax: 0,
      // 取得DATA
      cpus: {},
      mother_boards: {},
      video_cards: {},
      storages: {},
      pc_cases: {},
      // 選択ID
      ids: {
        cpu: null,
        mother_board: null,
        video_card: null,
        storage: null,
        pc_case: null
      },
      // 選択オブジェクト
      selected: {
        cpu: {},
        mother_board: {},
        video_card: {},
        storage: {},
        pc_case: {},

      }
    }
  },
  /* 初期実行 */
  created: function() {
    //消費税率取得
    let api = process.env.VUE_APP_API_URL + 'tax'
    axios.get(api).then(
      function(response) {
        this.tax = response.data
      }.bind(this)
    )
    // CPU取得
    api = process.env.VUE_APP_API_URL + 'cpu'
    axios.get(api).then(
      function(response) {
        this.cpus = response.data
      }.bind(this)
    )
  },
  computed: {
    // 算出プロパティ
    selected_cpu_id: {
      get () {
        return this.ids.cpu
      },
      set (param) {
        this.ids.cpu = param
        this.selected.cpu = this.cpus[this.ids.cpu]
        this.get_mother_boards()
      }
    },
    selected_mother_board_id: {
      get () {
        return this.ids.mother_board
      },
      set (param) {
        this.ids.mother_board = param
        this.selected.mother_board = this.mother_boards[this.ids.mother_board]
        this.get_video_cards()
      }
    },
    selected_video_card_id: {
      get () {
        return this.ids.video_card
      },
      set (param) {
        this.ids.video_card = param
        this.selected.video_card = this.video_cards[this.ids.video_card]
        this.get_storages()
      }
    },
    selected_storage_id: {
      get () {
        return this.ids.storage
      },
      set (param) {
        this.ids.storage = param
        this.selected.storage = this.storages[this.ids.storage]
        this.get_pc_cases()
      }
    },
    selected_pc_case_id: {
      get () {
        return this.ids.pc_case
      },
      set (param) {
        this.ids.pc_case = param
        this.selected.pc_case = this.pc_cases[this.ids.pc_case]
      }
    },
    all_price: {
      get () {
        let total = this.calc_total()
        return total
      }
    },
    tax_price: {
      get () {
        let total = this.calc_total()
        // 消費税計算
        total = Math.floor(total * this.tax.rate / 100)
        return total
      }
    },
    total_price: {
      get () {
        let total = this.calc_total()
        // 消費税計算
        let tax = Math.floor(total * this.tax.rate / 100)
        // 税込トータル金額
        return total + tax
      }
    }
  },

  methods: {
    /*eslint no-console: "off"*/
    get_mother_boards: function() {
      // CPUs取得
      let api = process.env.VUE_APP_API_URL + 'mother_board'
      axios.get(api).then(
        function(response) {
          this.mother_boards = response.data
        }.bind(this)
      )
    },
    get_video_cards: function() {
      // Video_Cards取得
      let api = process.env.VUE_APP_API_URL + 'video_card' 
      axios.get(api).then(
        function(response) {
          this.video_cards = response.data
        }.bind(this)
      )
    },
    get_storages: function() {
      // Storages取得
      let api = process.env.VUE_APP_API_URL + 'storage'
      axios.get(api).then(
        function(response) {
          this.storages = response.data
        }.bind(this)
      )
    },
    get_pc_cases: function() {
      // Cases取得
      let api = process.env.VUE_APP_API_URL + 'pc_case'
      axios.get(api).then(
        function(response) {
          this.pc_cases = response.data
        }.bind(this)
      )
    },
    // 合計金額を算出
    calc_total: function(){
        let total = 0
        if (typeof this.selected.cpu.price !== 'undefined') {
          total = total + this.selected.cpu.price
        }
        if (typeof this.selected.mother_board.price !== 'undefined') {
          total = total + this.selected.mother_board.price
        }
        if (typeof this.selected.video_card.price !== 'undefined') {
          total = total + this.selected.video_card.price
        }
        if (typeof this.selected.storage.price !== 'undefined') {
          total = total + this.selected.storage.price
        }
        if (typeof this.selected.pc_case.price !== 'undefined') {
          total = total + this.selected.pc_case.price
        }
        return  total
    }
  }
}
</script>

<style>
.item-name{
    text-align: left;
}
.item-price{
    text-align: right;
}
</style>
消費税と合計金額を表示する

実行画面

PC用

SP用

コメント
