Welcome to the Trysil Blog

This is the first post of the Trysil Blog — the place where I’ll share tutorials, deep dives, release notes, and design decisions behind Trysil, an ORM framework for Delphi.

What you’ll find here

• Tutorials — step-by-step walkthroughs, from the first entity mapping to multi-tenant REST APIs built on top of Trysil.Http.
• Deep dives — how features work under the hood: the identity map, JOIN queries, change tracking, soft delete, lazy loading, and more.
• Release notes — what’s new, what changed, and what’s on the roadmap.
• Case studies — real-world patterns, lessons learned, and Delphi-specific design choices (and why some “obvious” alternatives don’t work in this language).

A small example

[TTable('Customers')]
TCustomer = class
strict private
  [TPrimaryKey]
  [TColumn('ID')]
  FID: TTPrimaryKey;

  [TColumn('CompanyName')]
  FCompanyName: String;

  [TVersionColumn]
  [TColumn('VersionID')]
  FVersionID: TTVersion;
public
  property ID: TTPrimaryKey read FID;
  property CompanyName: String read FCompanyName write FCompanyName;
  property VersionID: TTVersion read FVersionID;
end;

var
  LCustomers: TTList<TCustomer>;
  LCustomer: TCustomer;
begin
  LCustomers := TTList<TCustomer>.Create;
  try
    FContext.SelectAll<TCustomer>(LCustomers);
    for LCustomer in LCustomers do
      Writeln(LCustomer.CompanyName);
  finally
    LCustomers.Free;
  end;
end;

Stay tuned — more coming soon.