Merge pull request #35 from infinitered/update/indexes

Expand page title and description, add indexes

Author: jamonholmgren

lib/mix/tasks/thesis.install.ex

@@ -2,6 +2,15 @@ defmodule Mix.Tasks.Thesis.Install do
   use Mix.Task
   import Mix.Thesis.Utils
 
+  @migrations [
+    "create_thesis_tables",
+    "add_meta_to_thesis_page_contents",
+    "add_indexes_to_tables"
+  ]
+  @template_files [
+    {"priv/templates/thesis.install/thesis_auth.exs", "lib/thesis_auth.ex" }
+  ]
+
   @shortdoc "Generates Thesis code in your Phoenix app"
 
   @moduledoc """
@@ -29,14 +38,12 @@ defmodule Mix.Tasks.Thesis.Install do
   @doc false
   def thesis_templates do
     migrations = ["create_thesis_tables", "add_meta_to_thesis_page_contents"]
-    migration_files = migrations
+    migration_files = @migrations
                       |> Enum.filter(&migration_missing?/1)
                       |> Enum.with_index
                       |> Enum.map(&migration_tuple/1)
 
-    template_files = [ {"priv/templates/thesis.install/thesis_auth.exs", "lib/thesis_auth.ex" } ]
-
-    template_files ++ migration_files
+    @template_files ++ migration_files
     |> Stream.map(&render_eex/1)
     |> Stream.map(&copy_to_target/1)
     |> Stream.run

priv/templates/thesis.install/add_indexes_to_tables.exs

@@ -0,0 +1,27 @@
+defmodule <%= base %>.Repo.Migrations.AddIndexToTables do
+  use Ecto.Migration
+
+  def up do
+    alter table(:thesis_pages) do
+      modify :title,        :string, size: 512
+      modify :description,  :string, size: 1024
+    end
+
+    # Index page slugs, since we're searching on those
+    create index(:thesis_pages, [:slug])
+
+    # Create foreign key constraint for page_contents -> page
+    alter table(:thesis_page_contents) do
+      modify :page_id, references(:thesis_pages, on_delete: :delete_all)
+    end
+  end
+
+  def down do
+    alter table(:thesis_pages) do
+      modify :title,        :string
+      modify :description,  :string
+    end
+
+    remove index(:thesis_pages, [:slug])
+  end
+end