Combine migrations for solid_cache_entries

Combine the migrations for solid_cache_entries into a single file. Spot
if someone is migrating directly from v0.3 or earlier and raise an error.

Author: djmb

db/migrate/20230724121448_create_solid_cache_entries.rb

@@ -0,0 +1,29 @@
+class CreateSolidCacheEntries < ActiveRecord::Migration[7.2]
+  def up
+    create_table :solid_cache_entries, if_not_exists: true do |t|
+      t.binary   :key,        null: false,   limit: 1024
+      t.binary   :value,      null: false,   limit: 512.megabytes
+      t.datetime :created_at, null: false
+      t.integer :key_hash,    null: false,    limit: 8
+      t.integer :byte_size,   null: false,    limit: 4
+
+      t.index  :key_hash, unique: true
+      t.index  [:key_hash, :byte_size]
+      t.index  :byte_size
+    end
+
+    raise "column \"key_hash\" does not exist" unless column_exists? :solid_cache_entries, :key_hash
+  rescue => e
+    if e.message =~ /(column "key_hash" does not exist|no such column: key_hash)/
+      raise \
+        "Could not find key_hash column on solid_cache_entries, if upgrading from v0.3 or earlier, have you followed " \
+        "the steps in https://github.com/rails/solid_cache/blob/main/upgrading_to_version_0.4.x.md?"
+    else
+      raise
+    end
+  end
+
+  def down
+    drop_table :solid_cache_entries
+  end
+end

db/migrate/20240108155507_add_key_hash_and_byte_size_to_solid_cache_entries.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.0].define(version: 2024_01_10_111702) do
+ActiveRecord::Schema[7.2].define(version: 2024_08_20_123641) do
   create_table "solid_cache_entries", force: :cascade do |t|
     t.binary "key", limit: 1024, null: false
     t.binary "value", limit: 536870912, null: false
@@ -21,5 +21,4 @@
     t.index ["key_hash", "byte_size"], name: "index_solid_cache_entries_on_key_hash_and_byte_size"
     t.index ["key_hash"], name: "index_solid_cache_entries_on_key_hash", unique: true
   end
-
 end

db/migrate/20240110111600_add_key_hash_and_byte_size_indexes_and_null_constraints_to_solid_cache_entries.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.0].define(version: 2024_01_10_111702) do
+ActiveRecord::Schema[7.2].define(version: 2024_08_20_123641) do
   create_table "solid_cache_entries", force: :cascade do |t|
     t.binary "key", limit: 1024, null: false
     t.binary "value", limit: 536870912, null: false
@@ -21,5 +21,4 @@
     t.index ["key_hash", "byte_size"], name: "index_solid_cache_entries_on_key_hash_and_byte_size"
     t.index ["key_hash"], name: "index_solid_cache_entries_on_key_hash", unique: true
   end
-
 end

db/migrate/20240110111702_remove_key_index_from_solid_cache_entries.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.0].define(version: 2024_01_10_111702) do
+ActiveRecord::Schema[7.2].define(version: 2024_08_20_123641) do
   create_table "solid_cache_entries", force: :cascade do |t|
     t.binary "key", limit: 1024, null: false
     t.binary "value", limit: 536870912, null: false
@@ -21,5 +21,4 @@
     t.index ["key_hash", "byte_size"], name: "index_solid_cache_entries_on_key_hash_and_byte_size"
     t.index ["key_hash"], name: "index_solid_cache_entries_on_key_hash", unique: true
   end
-
 end

db/migrate/20240820123641_create_solid_cache_entries.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.0].define(version: 2024_01_10_111702) do
+ActiveRecord::Schema[7.2].define(version: 2024_08_20_123641) do
   create_table "solid_cache_entries", force: :cascade do |t|
     t.binary "key", limit: 1024, null: false
     t.binary "value", limit: 536870912, null: false
@@ -21,5 +21,4 @@
     t.index ["key_hash", "byte_size"], name: "index_solid_cache_entries_on_key_hash_and_byte_size"
     t.index ["key_hash"], name: "index_solid_cache_entries_on_key_hash", unique: true
   end
-
 end

test/dummy/db/primary_shard_one_schema.rb

@@ -10,7 +10,7 @@
 #
 # It's strongly recommended that you check this file into your version control system.
 
-ActiveRecord::Schema[7.0].define(version: 2024_01_10_111702) do
+ActiveRecord::Schema[7.2].define(version: 2024_08_20_123641) do
   create_table "solid_cache_entries", force: :cascade do |t|
     t.binary "key", limit: 1024, null: false
     t.binary "value", limit: 536870912, null: false
@@ -21,5 +21,4 @@
     t.index ["key_hash", "byte_size"], name: "index_solid_cache_entries_on_key_hash_and_byte_size"
     t.index ["key_hash"], name: "index_solid_cache_entries_on_key_hash", unique: true
   end
-
 end