修改bug

cloudfunctions/draftGet/index.js

@@ -2,11 +2,31 @@ const cloud = require('wx-server-sdk')
 
 cloud.init({ env: cloud.DYNAMIC_CURRENT_ENV })
 const db = cloud.database()
+const DRAFTS_COLLECTION = 'drafts'
+
+function isCollectionMissing(error) {
+  const text = String(error?.errMsg || error?.message || error || '')
+  return (
+    text.includes('collection not exist') ||
+    text.includes('collection not exists') ||
+    text.includes('collection is not exists') ||
+    text.includes('DATABASE_COLLECTION_NOT_EXIST') ||
+    text.includes('-502005')
+  )
+}
 
 exports.main = async () => {
   const { OPENID } = cloud.getWXContext()
   if (!OPENID) throw new Error('no openid in wx context')
-  const res = await db.collection('drafts').where({ openid: OPENID }).limit(1).get()
+
+  let res
+  try {
+    res = await db.collection(DRAFTS_COLLECTION).where({ openid: OPENID }).limit(1).get()
+  } catch (error) {
+    if (isCollectionMissing(error)) return { draft: null }
+    throw error
+  }
+
   if (!res.data.length) return { draft: null }
   const record = res.data[0]
   return { draft: record.draft || null, updatedAt: record.updatedAt }