added workflow and circlei

Author: dcalixto

.circleci/config.yml

@@ -0,0 +1,20 @@
+version: 2.1
+
+jobs:
+  build:
+    docker:
+      - image: crystallang/crystal:latest
+    steps:
+      - checkout
+      - run:
+          name: Install dependencies
+          command: shards install
+      - run:
+          name: Run tests
+          command: crystal spec
+
+workflows:
+  version: 2
+  build_and_test:
+    jobs:
+      - build

.github/workflows/crystal-test.yml

@@ -0,0 +1,30 @@
+name: Crystal Test
+
+on:
+  workflow_dispatch:
+  push:
+    branches: ["**"]
+  pull_request:
+    branches: ["**"]
+
+jobs:
+  crystal_test:
+    name: Crystal Test
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        crystal-version: ["1.9", "1.10"]
+
+    steps:
+      - uses: actions/checkout@v4
+
+      - name: Set up Crystal
+        uses: crystal-lang/install-crystal@v1
+        with:
+          crystal: ${{ matrix.crystal-version }}
+
+      - name: Install dependencies
+        run: shards install
+
+      - name: Run specs
+        run: crystal spec

README.md

@@ -2,7 +2,7 @@
 
 A Crystal shard for creating human-readable URLs and slugs. FriendlyId lets you create pretty URLs and slugs for your resources, with support for history tracking and customization.
 
-![Build Status](https://1acb-2804-1b1-c802-c90c-2e6c-3569-397e-7ead.ngrok-free.app/buildStatus/icon?job=friendly_id&style=flat)
+[![Crystal Test](https://github.com/dcalixto/friendly_id/actions/workflows/crystal-test.yml/badge.svg?branch=master)](https://github.com/dcalixto/friendly_id/actions/workflows/crystal-test.yml)
 
 ## Installation
 

db/migrations/20241208044150_create_friendly_id_slugs.sql db/migrations/20241208222403_create_friendly_id_slugs.sql

@@ -30,9 +30,9 @@ class Post
   end
 
   def update!(title : String)
-    # Store old slug before any changes
-    old_slug = @slug.try(&.dup)
-    @slug_changed = true # Add this line
+    # Store the previous slug before making any changes
+    @previous_slug = @slug.try(&.dup)
+    @slug_changed = true
 
     before_save
     @title = title