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

129 lines
3.3 KiB
JavaScript

const CouchDB = require("../../../db")
const viewTemplate = require("./viewBuilder")
const { apiFileReturn } = require("../../../utilities/fileSystem")
const exporters = require("./exporters")
const { fetchView } = require("../row")
const { ViewNames } = require("../../../db/utils")
const controller = {
fetch: async ctx => {
const db = new CouchDB(ctx.user.appId)
const designDoc = await db.get("_design/database")
const response = []
for (let name of Object.keys(designDoc.views)) {
// Only return custom views, not built ins
if (Object.values(ViewNames).indexOf(name) !== -1) {
continue
}
response.push({
name,
...designDoc.views[name],
})
}
ctx.body = response
},
save: async ctx => {
const db = new CouchDB(ctx.user.appId)
const { originalName, ...viewToSave } = ctx.request.body
const designDoc = await db.get("_design/database")
const view = viewTemplate(viewToSave)
if (!viewToSave.name) {
ctx.throw(400, "Cannot create view without a name")
}
designDoc.views = {
...designDoc.views,
[viewToSave.name]: view,
}
// view has been renamed
if (originalName) {
delete designDoc.views[originalName]
}
await db.put(designDoc)
// add views to table document
const table = await db.get(ctx.request.body.tableId)
if (!table.views) table.views = {}
if (!view.meta.schema) {
view.meta.schema = table.schema
}
table.views[viewToSave.name] = view.meta
if (originalName) {
delete table.views[originalName]
}
await db.put(table)
ctx.body = {
...table.views[viewToSave.name],
name: viewToSave.name,
}
},
destroy: async ctx => {
const db = new CouchDB(ctx.user.appId)
const designDoc = await db.get("_design/database")
const viewName = decodeURI(ctx.params.viewName)
const view = designDoc.views[viewName]
delete designDoc.views[viewName]
await db.put(designDoc)
const table = await db.get(view.meta.tableId)
delete table.views[viewName]
await db.put(table)
ctx.body = view
},
exportView: async ctx => {
const db = new CouchDB(ctx.user.appId)
const designDoc = await db.get("_design/database")
const viewName = decodeURI(ctx.query.view)
const view = designDoc.views[viewName]
const format = ctx.query.format
if (!format) {
ctx.throw(400, "Format must be specified, either csv or json")
}
if (view) {
ctx.params.viewName = viewName
// Fetch view rows
ctx.query = {
group: view.meta.groupBy,
calculation: view.meta.calculation,
stats: !!view.meta.field,
field: view.meta.field,
}
} else {
// table all_ view
/* istanbul ignore next */
ctx.params.viewName = viewName
}
await fetchView(ctx)
let schema = view && view.meta && view.meta.schema
if (!schema) {
const tableId = ctx.params.tableId || view.meta.tableId
const table = await db.get(tableId)
schema = table.schema
}
// Export part
let headers = Object.keys(schema)
const exporter = exporters[format]
const filename = `${viewName}.${format}`
// send down the file
ctx.attachment(filename)
ctx.body = apiFileReturn(exporter(headers, ctx.body))
},
}
module.exports = controller