99 lines
2.5 KiB
JavaScript
99 lines
2.5 KiB
JavaScript
const CouchDB = require("../../db")
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const newid = require("../../db/newid")
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exports.fetch = async function(ctx) {
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const db = new CouchDB(ctx.user.instanceId)
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const body = await db.query("database/by_type", {
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include_docs: true,
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key: ["model"],
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})
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ctx.body = body.rows.map(row => row.doc)
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}
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exports.find = async function(ctx) {
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const db = new CouchDB(ctx.user.instanceId)
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const model = await db.get(ctx.params.id)
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ctx.body = model
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}
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exports.save = async function(ctx) {
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const db = new CouchDB(ctx.user.instanceId)
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const modelToSave = {
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type: "model",
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_id: newid(),
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...ctx.request.body,
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}
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const result = await db.post(modelToSave)
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modelToSave._rev = result.rev
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const { schema } = ctx.request.body
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for (let key in schema) {
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// model has a linked record
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if (schema[key].type === "link") {
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// create the link field in the other model
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const linkedModel = await db.get(schema[key].modelId)
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linkedModel.schema[modelToSave.name] = {
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name: modelToSave.name,
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type: "link",
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modelId: modelToSave._id,
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constraints: {
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type: "array",
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},
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}
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await db.put(linkedModel)
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}
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}
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const designDoc = await db.get("_design/database")
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designDoc.views = {
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...designDoc.views,
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[`all_${modelToSave._id}`]: {
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map: `function(doc) {
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if (doc.modelId === "${modelToSave._id}") {
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emit(doc._id);
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}
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}`,
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},
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}
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await db.put(designDoc)
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ctx.status = 200
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ctx.message = `Model ${ctx.request.body.name} saved successfully.`
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ctx.body = modelToSave
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}
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exports.destroy = async function(ctx) {
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const db = new CouchDB(ctx.user.instanceId)
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const modelToDelete = await db.get(ctx.params.modelId)
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await db.remove(modelToDelete)
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const modelViewId = `all_${ctx.params.modelId}`
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// Delete all records for that model
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const records = await db.query(`database/${modelViewId}`)
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await db.bulkDocs(
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records.rows.map(record => ({ _id: record.id, _deleted: true }))
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)
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// Delete linked record fields in dependent models
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for (let key in modelToDelete.schema) {
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const { type, modelId } = modelToDelete.schema[key]
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if (type === "link") {
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const linkedModel = await db.get(modelId)
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delete linkedModel.schema[modelToDelete.name]
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await db.put(linkedModel)
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}
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}
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// delete the "all" view
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const designDoc = await db.get("_design/database")
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delete designDoc.views[modelViewId]
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await db.put(designDoc)
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ctx.status = 200
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ctx.message = `Model ${ctx.params.modelId} deleted.`
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}
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