vue mixins代码复用的项目实践

<!-- 主文件 -->
<template>
    <button @click="clickHandle">button</button>
</template>

<script>
export default {
    name: 'PageDemo',
    methods: {
        func1(){},
        func2(){},
        func3(){},
        clickHandle(){
            this.func1();
            this.func2()
            this.func3()
            console.log('button clicked')
        }
    },
}
</script>

// compose-demo.js

export default {
    methods: {
        func1(){},
        func2(){},
        func3(){},
    }
}

<template>
    <button @click="clickHandle">button</button>
</template>

<script>
// 主文件
import ComposeDemo from './compose-demo'
export default {
    name: 'PageDemo',
    mixins: [ComposeDemo],
    methods: {
        clickHandle(){
            this.func1();
            this.func2()
            this.func3()
            console.log('button clicked')
        }
    },
}
</script>

// 组件
<template>
   <input v-model="a" @change="inputChangeHandle"/>
   <input v-model="b" @change="inputChangeHandle" />
</template>

<script>
export default {
    name: 'ComponentChild',
    props: {
        propA: {
            type: String
        },
        propB: {
            type: String
        }
    },
    data(){
        return {
            a: this.propA,
            b: this.propB,
        }
    },
    methods: {
       inputChangeHandle(){
           this.$emit('update-data', {a:this.a, b:this.b})
       } 
    }
}
</script>


// 调用方
<template>
    <component-child :propA="query.a" :propB="query.b" @update-data="getData"/>
</template>

<script>
import ComponentChild from './component-child.vue'
export default {
    name: 'Page1',
    components: {ComponentChild},
    data(){
        return {
            query: {
                a: '默认数据a',
                b: '默认数据b'
            }
        }
    },
    methods: {
        getData(payload) {
            const {a,b}=payload;
            this.query.a = a;
            this.query.b = b;
        }
    }
}
</script>

// 纯函数，引入ComponentChild，并且声明getData方法
// compose-component-child.js

<script>
import ComponentChild from './component-child.vue'
</script>
export default {
    components: {ComponentChild},
    
    methods: {
        // 通常情况，复用的业务组件都会有同样的数据结构，都带有query.a和query.b。如果不一致，那直接在父组件重写该方法
        getData(payload) {
            const {a,b}=payload;
            this.query.a = a;
            this.query.b = b;
        }
    }
}



// 调用方
<template>
    <component-child :propA="query.a" :propB="query.b" @update-data="getData"/>
</template>

<script>
import ComposeComponentChild from './compose-component-child.js'
export default {
    name: 'Page1',
    mixins: [ComposeComponentChild]
    data(){
        return {
            query: {
                a: '默认数据a',
                b: '默认数据b'
            }
        }
    },
    methods: { }
}
</script>

<script>
    import {defaultPageSize}from '@/setting'
    export default {
        data(){
            return {
                tableList: [],
                pageSize: defaultPageSize,
                pageNo: 1,
                totalRecords: 0,
            }
        }
    }
</script>