# tmsmith/Dapper-Extensions

Dapper Extensions is a small library that complements Dapper by adding basic CRUD operations (Get, Insert, Update, Delete) for your POCOs. For more advanced querying scenarios, Dapper Extensions provides a predicate system. The goal of this library is to keep your POCOs pure by not requiring any attributes or base class inheritance.

Repository: https://github.com/tmsmith/Dapper-Extensions
Canonical: https://ross.abutalabs.com/products/dapper-extensions
Language: C#
License Family: other
Last push: 2024-02-06T22:02:55+00:00

## Health v2 (maintenance only)
Score: 32/100 (v2, computed 2026-09-03T02:20:16.233290+00:00)
- activity 0, release rhythm 35, longevity 100
- inputs: {"age_days": 5420, "days_push": 939, "days_rel": null, "gap_med": null, "n_releases_24m": 0}
- flags: no_releases, no_license
- formula: round(0.45*activity + 0.35*rhythm + 0.20*longevity); archived -> min(score, 10)

## Adoption (not part of the score)
Stars 1818, forks 578 (observed 2026-08-28T04:05:40.658835+00:00)

## What it is
Dapper Extensions is a small .NET library that complements Dapper by adding automatic CRUD operations (Get, Insert, Update, Delete) for POCOs, plus a predicate system for advanced queries. It keeps POCOs pure by requiring no attributes or base class inheritance, using ClassMapper for customized entity-table mappings.

## Use cases
- add crud operations to dapper without writing sql
- map poco classes to database tables without attributes
- query database with predicate system instead of raw sql
- get paged result sets from database in .net
- support composite primary keys with dapper
- count and list entities with a micro-orm

## When to choose
- you already use Dapper and want automatic CRUD without heavy ORM overhead
- you need attribute-free POCOs with customizable table mappings
- you want lightweight querying with predicates and paging on SQL Server, MySQL, SQLite, or PostgreSQL

## When to avoid
- you need a full ORM with change tracking, lazy loading, or migrations
- you prefer Dapper.Contrib or an attribute-based mapping approach
- you need a project with an explicit license or very active development

## Facets
- artifact type: library
- maturity: maintenance
- function: orm, database, database-driver
- domain: databases, backend, developer-tools
- platform: dotnet, cross-platform
- tags: dapper, crud, poco, micro-orm, predicate-system, csharp

## Member repositories
- tmsmith/Dapper-Extensions (main) score 32

## Provenance
- Observed fields: from GitHub, fetched 2026-08-28T04:05:40.658835+00:00.
- Health v2: computed from the inputs above; adoption is never an input.
- Inferred fields (summary, facets, guidance): AI-extracted, prompt v1, taxonomy v1, on 2026-08-30T03:20:09.372759+00:00, confidence not recorded.
  - readme: https://github.com/tmsmith/Dapper-Extensions (fetched 2026-08-28T04:05:40.658835+00:00, sha d7627a327061)
- Data as of 2026-08-30T08:39:29.467469+00:00.