fix(mysql): Add, drop, rename and change enum values (#2853)

Extends the work done in #2680 to support adding and dropping columns and tables.

Fixes #2475

Author: kyleconroy

examples/kotlin/src/main/kotlin/com/example/ondeck/mysql/Models.kt

@@ -7,12 +7,12 @@ package com.example.ondeck.mysql
 import java.sql.Timestamp
 import java.time.Instant
 
-enum class VenuesStatus(val value: String) {
+enum class VenueStatus(val value: String) {
   OPEN("open"),
   CLOSED("closed");
 
   companion object {
-    private val map = VenuesStatus.values().associateBy(VenuesStatus::value)
+    private val map = VenueStatus.values().associateBy(VenueStatus::value)
     fun lookup(value: String) = map[value]
   }
 }
@@ -26,7 +26,7 @@ data class City (
 data class Venue (
   val id: Long,
   // Venues can be either open or closed
-  val status: VenuesStatus,
+  val status: VenueStatus,
   val statuses: String?,
   // This value appears in public URLs
   val slug: String,

examples/kotlin/src/main/kotlin/com/example/ondeck/mysql/Queries.kt

@@ -20,7 +20,7 @@ interface Queries {
       name: String,
       city: String,
       spotifyPlaylist: String,
-      status: VenuesStatus,
+      status: VenueStatus,
       statuses: String?,
       tags: String?): Long
 

examples/kotlin/src/main/kotlin/com/example/ondeck/mysql/QueriesImpl.kt

@@ -116,7 +116,7 @@ class QueriesImpl(private val conn: Connection) : Queries {
       name: String,
       city: String,
       spotifyPlaylist: String,
-      status: VenuesStatus,
+      status: VenueStatus,
       statuses: String?,
       tags: String?): Long {
     return conn.prepareStatement(createVenue, Statement.RETURN_GENERATED_KEYS).use { stmt ->
@@ -180,7 +180,7 @@ class QueriesImpl(private val conn: Connection) : Queries {
       }
       val ret = Venue(
                 results.getLong(1),
-                VenuesStatus.lookup(results.getString(2))!!,
+                VenueStatus.lookup(results.getString(2))!!,
                 results.getString(3),
                 results.getString(4),
                 results.getString(5),
@@ -223,7 +223,7 @@ class QueriesImpl(private val conn: Connection) : Queries {
       while (results.next()) {
           ret.add(Venue(
                 results.getLong(1),
-                VenuesStatus.lookup(results.getString(2))!!,
+                VenueStatus.lookup(results.getString(2))!!,
                 results.getString(3),
                 results.getString(4),
                 results.getString(5),

examples/kotlin/src/test/kotlin/com/example/ondeck/mysql/QueriesImplTest.kt

@@ -25,8 +25,8 @@ class QueriesImplTest {
             name = "The Fillmore",
             city = city.slug,
             spotifyPlaylist = "spotify=uri",
-            status = VenuesStatus.OPEN,
-            statuses = listOf(VenuesStatus.OPEN, VenuesStatus.CLOSED).joinToString(","),
+            status = VenueStatus.OPEN,
+            statuses = listOf(VenueStatus.OPEN, VenueStatus.CLOSED).joinToString(","),
             tags = listOf("rock", "punk").joinToString(",")
         )
         val venue = q.getVenue(

examples/ondeck/mysql/db_test.go

@@ -45,8 +45,8 @@ func runOnDeckQueries(t *testing.T, q *Queries) {
 		Name:            "The Fillmore",
 		City:            city.Slug,
 		SpotifyPlaylist: "spotify:uri",
-		Status:          VenuesStatusOpen,
-		Statuses:        join(string(VenuesStatusOpen), string(VenuesStatusClosed)),
+		Status:          VenueStatusOpen,
+		Statuses:        join(string(VenueStatusOpen), string(VenueStatusClosed)),
 		Tags:            join("rock", "punk"),
 	})
 	if err != nil {