使用GPT开发食堂采购账单

发布时间:2023年12月18日

原始系统中,只有采购量和消耗量,需要添加“余”列,并自动计算的余量

?具体实现通过查询GPT获得:

提问:

使用antdesign vue的<a-table>组件做一个互动表,每行输入a和b两值,计算c=a+b,然后显示a、b、c

回答:

下面是使用 Ant Design Vue 的?<a-table>?组件创建一个互动表格,其中每行输入?a?和?b?的值,计算并显示?c = a + b

<template>
  <a-table :dataSource="data" :columns="columns">
    <template v-slot:title>Interactive Table</template>
    <template v-slot:expanded-row="{ record }">
      a: <a-input-number :value="record.a" @change="handleChange(record, 'a')" />
      b: <a-input-number :value="record.b" @change="handleChange(record, 'b')" />
      c: {{ record.c }}
    </template>
  </a-table>
</template>

<script>
export default {
  data() {
    return {
      data: [
        { key: 1, a: 0, b: 0, c: 0 },
        { key: 2, a: 0, b: 0, c: 0 },
        { key: 3, a: 0, b: 0, c: 0 }
      ],
      columns: [
        { title: 'Key', dataIndex: 'key' },
        { title: 'A', dataIndex: 'a' },
        { title: 'B', dataIndex: 'b' },
        { title: 'C', dataIndex: 'c' }
      ]
    };
  },
  methods: {
    handleChange(record, field) {
      record[field] = parseFloat(record[field]);
      record.c = record.a + record.b;
    }
  }
};
</script>

在上述示例中,我们使用了?<a-table>?组件来创建表格,并使用?:dataSource?和?:columns?属性将数据和列定义传递给表格组件。

在?<template v-slot:expanded-row>?中,我们定义了每行展开的内容。在展开的内容中,我们使用?<a-input-number>?组件来输入?a?和?b?的值。v-model?指令绑定了输入框的值到?record.a?和?record.b,使其与数据源中对应的值保持同步。

通过?@change?事件监听输入框值的变化,调用?handleChange?方法更新数据源中的值,并计算?c?的值。最后,我们通过插值表达式?{{ record.c }}?显示?c?的结果。

这样,每行输入?a?和?b?的值后,c?的值会自动计算并显示在表格中。、

提问:

限制<a-input-number>输入的数字保留小数点后两位

回答:

要限制?<a-input-number>?输入的数字保留小数点后两位,你可以使用?:precision?属性和?toFixed?方法。

下面是修改后的示例代码:

<template>
  <a-table :dataSource="data" :columns="columns">
    <template v-slot:title>Interactive Table</template>
    <template v-slot:expanded-row="{ record }">
      a: <a-input-number :value="record.a" @change="handleChange(record, 'a')" :precision="2" />
      b: <a-input-number :value="record.b" @change="handleChange(record, 'b')" :precision="2" />
      c: {{ record.c.toFixed(2) }}
    </template>
  </a-table>
</template>

<script>
export default {
  data() {
    return {
      data: [
        { key: 1, a: 0, b: 0, c: 0 },
        { key: 2, a: 0, b: 0, c: 0 },
        { key: 3, a: 0, b: 0, c: 0 }
      ],
      columns: [
        { title: 'Key', dataIndex: 'key' },
        { title: 'A', dataIndex: 'a' },
        { title: 'B', dataIndex: 'b' },
        { title: 'C', dataIndex: 'c' }
      ]
    };
  },
  methods: {
    handleChange(record, field) {
      record[field] = parseFloat(record[field]);
      record.c = record.a + record.b;
    }
  }
};
</script>

ps:

toFixed(2) 是js自带函数

成品代码:

<template>
  <a-drawer
    title="物品入库"
    :maskClosable="false"
    placement="right"
    :closable="false"
    :visible="show"
    :width="1200"
    @close="onClose"
    style="height: calc(100% - 55px);overflow: auto;padding-bottom: 53px;"
  >
    <a-form :form="form" layout="horizontal">
      <a-row :gutter="32">
        <a-col :span="12">
          <a-form-item label='保管人' v-bind="formItemLayout">
            <a-input v-decorator="[
            'custodian',
            { rules: [{ required: true, message: '请输入保管人!' }] }
            ]"/>
          </a-form-item>
        </a-col>
        <a-col :span="12">
          <a-form-item label='入库人' v-bind="formItemLayout">
            <a-input v-decorator="[
            'putUser',
            { rules: [{ required: true, message: '请输入入库人!' }] }
            ]"/>
          </a-form-item>
        </a-col>
        <a-col :span="24">
          <a-form-item label='备注消息' v-bind="formItemLayout">
            <a-textarea :rows="4" v-decorator="[
            'content',
             { rules: [{ required: true, message: '请输入名称!' }] }
            ]"/>
          </a-form-item>
        </a-col>
        <a-col :span="24">
          <a-table :columns="columns" :data-source="dataList">
            <template slot="nameShow" slot-scope="text, record">
              <a-input v-model="record.name"></a-input>
            </template>
            <template slot="typeShow" slot-scope="text, record">
              <a-input v-model="record.type"></a-input>
            </template>
            <template slot="typeIdShow" slot-scope="text, record">
              <a-select v-model="record.typeId" style="width: 100%">
                <a-select-option v-for="(item, index) in consumableType" :value="item.id" :key="index">{{ item.name }}</a-select-option>
              </a-select>
            </template>
            <template slot="unitShow" slot-scope="text, record">
              <a-input v-model="record.unit"></a-input>
            </template>
            <template slot="amountShow" slot-scope="text, record">
              <a-input-number v-model="record.amount" :min="1" :step="1" :precision="2" @change="handleChange(record)"/>
            </template>
            <template slot="consumptionShow" slot-scope="text, record">
              <a-input-number v-model="record.consumption" :min="0" :max="record.amount" :step="1" :precision="2" @change="handleChange(record)"/>
            </template>
            <template slot="priceShow" slot-scope="text, record">
              <a-input-number v-model="record.price" :min="0"/>
            </template>
          </a-table>
          <a-button @click="dataAdd" type="primary" ghost size="large" style="margin-top: 10px;width: 100%">
            新增物品
          </a-button>
        </a-col>
      </a-row>
    </a-form>
    <div class="drawer-bootom-button">
      <a-popconfirm title="确定放弃编辑?" @confirm="onClose" okText="确定" cancelText="取消">
        <a-button style="margin-right: .8rem">取消</a-button>
      </a-popconfirm>
      <a-button @click="handleSubmit" type="primary" :loading="loading">提交</a-button>
    </div>
  </a-drawer>
</template>

<script>
import {mapState} from 'vuex'
const formItemLayout = {
  labelCol: { span: 24 },
  wrapperCol: { span: 24 }
}
export default {
  name: 'stockAdd',
  props: {
    stockAddVisiable: {
      default: false
    }
  },
  computed: {
    ...mapState({
      currentUser: state => state.account.user
    }),
    show: {
      get: function () {
        return this.stockAddVisiable
      },
      set: function () {
      }
    },
    columns () {
      return [{
        title: '序号',
        dataIndex: 'key'
      }, {
        title: '物品名称',
        dataIndex: 'name',
        scopedSlots: {customRender: 'nameShow'}
      }, {
        title: '所属类型',
        dataIndex: 'typeId',
        width: 200,
        scopedSlots: {customRender: 'typeIdShow'}
      }, {
        title: '型号',
        dataIndex: 'type',
        scopedSlots: {customRender: 'typeShow'}
      }, {
        title: '采购量',
        dataIndex: 'amount',
        scopedSlots: {customRender: 'amountShow'}
      }, {
        title: '消耗量',
        dataIndex: 'consumption',
        scopedSlots: {customRender: 'consumptionShow'}
      }, {
        title: '余',
        dataIndex: 'balance'
      }, {
        title: '单位',
        dataIndex: 'unit',
        scopedSlots: {customRender: 'unitShow'}
      }, {
        title: '单价',
        dataIndex: 'price',
        scopedSlots: {customRender: 'priceShow'}
      }]
    }
  },
  mounted () {
    this.getConsumableType()
  },
  data () {
    return {
      dataList: [],
      formItemLayout,
      form: this.$form.createForm(this),
      loading: false,
      consumableType: [],
      keynumber: 1
    }
  },
  methods: {
    getConsumableType () {
      this.$get('/cos/consumable-type/list').then((r) => {
        this.consumableType = r.data.data
      })
    },
    dataAdd () {
      this.dataList.push({key: this.keynumber++, name: '', type: '', typeId: '', unit: '', amount: 0, consumption: 0, balance: 0, price: 0})
    },
    reset () {
      this.loading = false
      this.form.resetFields()
    },
    onClose () {
      this.reset()
      this.$emit('close')
    },
    handleChange (record) {
      record.balance = (record.amount - record.consumption).toFixed(2)
    },
    handleSubmit () {
      let price = 0
      this.dataList.forEach(item => {
        price += item.price * item.amount
      })
      this.form.validateFields((err, values) => {
        values.price = price
        values.goods = JSON.stringify(this.dataList)
        if (!err) {
          this.loading = true
          this.$post('/cos/stock-info/put', {
            ...values
          }).then((r) => {
            this.reset()
            this.$emit('success')
          }).catch(() => {
            this.loading = false
          })
        }
      })
    }
  }
}
</script>

<style scoped>

</style>

开始我犯了两个错误:

①把@change="handleChange(record)"加到了<template slot="consumptionShow" slot-scope="text, record">上,应该加到<a-input-number>上才对。

②data-source数据项没有加如key列,编译报错。看了提示信息,感觉到不加key,程序无法将单行record对应到数组中的具体项,无法绑定数组中的数据。有了key才能绑定,这与vue标签的v-for属性循环类似。

v-for通过 key 管理状态:列表渲染 | Vue.js

文章来源:https://blog.csdn.net/qq_27361945/article/details/135012675
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