Update data export with new DB view structure and linked records

packages/server/src/api/controllers/view/index.js

@@ -4,6 +4,7 @@ const fs = require("fs")
 const path = require("path")
 const os = require("os")
 const exporters = require("./exporters")
+const { fetchView } = require("../record")
 
 const controller = {
   fetch: async ctx => {
@@ -77,36 +78,24 @@ const controller = {
     ctx.message = `View ${ctx.params.viewName} saved successfully.`
   },
   exportView: async ctx => {
-    const db = new CouchDB(ctx.user.instanceId)
     const view = ctx.request.body
     const format = ctx.query.format
 
-    // fetch records for the view
-    const response = await db.query(`database/${view.name}`, {
-      include_docs: !view.calculation,
-      group: view.groupBy,
-    })
-
-    if (view.calculation === "stats") {
-      response.rows = response.rows.map(row => ({
-        group: row.key,
-        field: view.field,
-        ...row.value,
-        avg: row.value.sum / row.value.count,
-      }))
-    } else {
-      response.rows = response.rows.map(row => row.doc)
+    // Fetch view records
+    ctx.params.viewName = view.name
+    ctx.query.group = view.groupBy
+    if (view.field) {
+      ctx.query.stats = true
+      ctx.query.field = view.field
     }
+    await fetchView(ctx)
 
+    // Export part
     let headers = Object.keys(view.schema)
-
     const exporter = exporters[format]
-    const exportedFile = exporter(headers, response.rows)
-
+    const exportedFile = exporter(headers, ctx.body)
     const filename = `${view.name}.${format}`
-
     fs.writeFileSync(path.join(os.tmpdir(), filename), exportedFile)
-
     ctx.body = {
       url: `/api/views/export/download/${filename}`,
       name: view.name,