feat(backend): add short IDs to models

2024-09-26 15:08:08 +02:00 · 2024-09-26 15:08:08 +02:00 · df93f28273
commit df93f28273
parent 6ea8861da2
9 changed files with 1101 additions and 3 deletions
--- a/Foxnouns.Backend/Database/Migrations/20240926124950_AddSids.cs
+++ b/Foxnouns.Backend/Database/Migrations/20240926124950_AddSids.cs
@ -0,0 +1,98 @@
+using Microsoft.EntityFrameworkCore.Migrations;
+using NodaTime;
+
+#nullable disable
+
+namespace Foxnouns.Backend.Database.Migrations
+{
+    /// <inheritdoc />
+    public partial class AddSids : Migration
+    {
+        /// <inheritdoc />
+        protected override void Up(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.AddColumn<string>(
+                name: "sid",
+                table: "users",
+                type: "text",
+                nullable: true);
+
+            migrationBuilder.AddColumn<Instant>(
+                name: "last_sid_reroll",
+                table: "users",
+                type: "timestamp with time zone",
+                nullable: false,
+                defaultValueSql: "now() - '1 hour'::interval");
+
+            migrationBuilder.AddColumn<string>(
+                name: "sid",
+                table: "members",
+                type: "text",
+                nullable: true);
+
+            migrationBuilder.CreateIndex(
+                name: "ix_users_sid",
+                table: "users",
+                column: "sid",
+                unique: true);
+
+            migrationBuilder.CreateIndex(
+                name: "ix_members_sid",
+                table: "members",
+                column: "sid",
+                unique: true);
+
+            migrationBuilder.Sql(@"create function generate_sid(len int) returns text as $$
+    select string_agg(substr('abcdefghijklmnopqrstuvwxyz', ceil(random() * 26)::integer, 1), '') from generate_series(1, len)
+$$ language sql volatile;
+");
+            migrationBuilder.Sql(@"create function find_free_user_sid() returns text as $$
+declare new_sid text;
+begin
+    loop
+        new_sid := generate_sid(5);
+        if not exists (select 1 from users where sid = new_sid) then return new_sid; end if;
+    end loop;
+end
+$$ language plpgsql volatile;
+");
+            migrationBuilder.Sql(@"create function find_free_member_sid() returns text as $$
+declare new_sid text;
+begin
+    loop
+        new_sid := generate_sid(6);
+        if not exists (select 1 from members where sid = new_sid) then return new_sid; end if;
+    end loop;
+end
+$$ language plpgsql volatile;");
+        }
+
+        /// <inheritdoc />
+        protected override void Down(MigrationBuilder migrationBuilder)
+        {
+            migrationBuilder.Sql("drop function find_free_member_sid;");
+            migrationBuilder.Sql("drop function find_free_user_sid;");
+            migrationBuilder.Sql("drop function generate_sid;");
+
+            migrationBuilder.DropIndex(
+                name: "ix_users_sid",
+                table: "users");
+
+            migrationBuilder.DropIndex(
+                name: "ix_members_sid",
+                table: "members");
+
+            migrationBuilder.DropColumn(
+                name: "sid",
+                table: "users");
+
+            migrationBuilder.DropColumn(
+                name: "last_sid_reroll",
+                table: "users");
+
+            migrationBuilder.DropColumn(
+                name: "sid",
+                table: "members");
+        }
+    }
+}