preJavascript.js
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import request from '@/utils/request'
export default {
methods: {
//执行前置脚本
handlePreScript(btnAlias) {
//执行前置脚本内容
const _this = this
const _req = request
const boData = this.data
const buttonConfig = this.getCurrentButtonConfigByBtnAlias(btnAlias)
const preScript = `const scriptFunction = function(_req,boData,_this){
${buttonConfig?.beforeScript}
};`
try {
const result = eval(`${preScript}scriptFunction(_req,boData,_this);`)
if (result && result.then && typeof result.then === 'function') {
return result
}
if (result === false) return false
return true
} catch (err) {
this.$message.error(`操作按钮的前置事件执行错误:${err}`)
}
},
getCurrentButtonConfigByBtnAlias(btnAlias) {
let buttonConfig = null
//流程启动页面,启动和保存
if(['startFlow','saveDraft'].includes(btnAlias)){
buttonConfig = this.buttonMap[btnAlias]
}else if(btnAlias === 'save'){
//审批页面保存
buttonConfig = {...this.saveDraftBtn}
}else{
this.approvalButtonList?.find((btn) => btn.alias === btnAlias)
}
return buttonConfig
},
submitBefore(btnAlias) {
//获取执行前置脚本返回结果
const preScriptResult = this.handlePreScript(btnAlias)
//前置脚本结果为false直接return
if (!preScriptResult) {
this.startFlowLoading = false
this.loading = false
return false
}
//执行前置脚本返回的接口时先执行前置事件接口
if (preScriptResult.then && typeof preScriptResult.then === 'function') {
preScriptResult.then(
() => {
this.onSubmit(btnAlias)
},
(fail) => {
//接口返回失败则终止按钮操作,并输出错误信息
this.startFlowLoading = false
this.loading = false
return this.$message.warning(fail)
}
)
} else {
//执行前置脚本返回true时继续提交
this.onSubmit(btnAlias)
}
},
}
}