Topic/804-niceProjectUrl

coscine/issues#804

src/Migrator/Migrations/Migration202005281400ProjectUrl.cs

+using FluentMigrator;
+using System;
+
+namespace Coscine.Database.Migration.Migrations
+{
+    //yyyymmddhhmm
+    [Migration(202005281400)]
+    public class Migration202005281400ProjectUrl : FluentMigrator.Migration
+    {
+        public override void Down()
+        {
+            Delete.Column("Slug").FromTable("Projects");
+        }
+
+        public override void Up()
+        {
+            Alter.Table("Projects").AddColumn("Slug").AsString(63).Nullable();
+            Execute.EmbeddedScript("Migration202005281400ProjectUrl_up.sql");
+            Alter.Table("Projects").AlterColumn("Slug").AsString(63).NotNullable();
+        }
+    }
+}