migration for clickedCount

backend/src/db/migrations/1614023644903-add-clickedCount-to-posts.js

@@ -0,0 +1,53 @@
+import { getDriver } from '../../db/neo4j'
+
+export const description = `
+This migration adds the clickedCount property to all posts, setting it to 0.
+`
+
+module.exports.up = async function (next) {
+  const driver = getDriver()
+  const session = driver.session()
+  const transaction = session.beginTransaction()
+   try {
+    // Implement your migration here.
+    await transaction.run(`
+        MATCH (p:Post)
+        SET p.clickedCount = 0
+    `)
+    await transaction.commit()
+    next()
+  } catch (error) {
+    // eslint-disable-next-line no-console
+    console.log(error)
+    await transaction.rollback()
+    // eslint-disable-next-line no-console
+    console.log('rolled back')
+    throw new Error(error)
+  } finally {
+    session.close()
+  }
+}
+
+module.exports.down = async function (next) {
+  const driver = getDriver()
+  const session = driver.session()
+  const transaction = session.beginTransaction()
+   try {
+    // Implement your migration here.
+    await transaction.run(`
+        MATCH (p:Post)
+        REMOVE p.clickedCount
+    `)
+    await transaction.commit()
+    next()
+  } catch (error) {
+    // eslint-disable-next-line no-console
+    console.log(error)
+    await transaction.rollback()
+    // eslint-disable-next-line no-console
+    console.log('rolled back')
+    throw new Error(error)
+  } finally {
+    session.close()
+  }
+}