Add microposts

These will have tags etc. in the future, this is it for now.

app/models/micropost.rb

@@ -0,0 +1,9 @@
+# frozen_string_literal: true
+
+class Micropost < ApplicationRecord
+  belongs_to :user
+  has_rich_text :content
+
+  validates :user, presence: true
+  validates :content, presence: true
+end

db/migrate/20230917114037_create_microposts.rb

@@ -0,0 +1,9 @@
+class CreateMicroposts < ActiveRecord::Migration[7.0]
+  def change
+    create_table :microposts do |t|
+      t.references :user, null: false, foreign_key: true
+
+      t.timestamps
+    end
+  end
+end

test/fixtures/action_text/rich_texts.yml

@@ -1,4 +1,4 @@
-# one:
-#   record: name_of_fixture (ClassOfFixture)
-#   name: content
-#   body: <p>In a <i>million</i> stars!</p>
+one:
+  record: some_text (Micropost)
+  name: content
+  body: <p>Just some text</p>

test/fixtures/microposts.yml

@@ -0,0 +1,2 @@
+some_text:
+  user: gimli

test/models/micropost_test.rb

@@ -0,0 +1,7 @@
+require "test_helper"
+
+class MicropostTest < ActiveSupport::TestCase
+  # test "the truth" do
+  #   assert true
+  # end
+end