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// 开发文档: https://uniapp.dcloud.net.cn/uniCloud/cloud-obj
//导入验证码公共模块
const uniCaptcha = require ( 'uni-captcha' )
//获取数据库对象
const db = uniCloud . database ( ) ;
//获取数据表opendb-verify-codes对象
const verifyCodes = db . collection ( 'opendb-verify-codes' )
module . exports = {
async getImageCaptcha ( {
scene
} ) {
//获取设备id
let {
deviceId ,
platform
} = this . getClientInfo ( ) ;
//根据： ，
let res = await verifyCodes . where ( {
scene ,
deviceId ,
state : 0
} ) . limit ( 1 ) . get ( )
//如果已存在则调用刷新接口，反之调用插件接口
let action = res . data . length ? 'refresh' : 'create'
//执行并返回结果
//导入配置，配置优先级说明：此处配置 > uni-config-center
return await uniCaptcha [ action ] ( {
scene , //来源客户端传递，表示：使用场景值，用于防止不同功能的验证码混用
uniPlatform : platform
} )
}
}
