https://github.com/tlewin/yadm

Simple Clojure library for data mapping
https://github.com/tlewin/yadm

clojure database datamapper sql validation

Last synced: about 1 year ago
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Simple Clojure library for data mapping

• Host: GitHub
• URL: https://github.com/tlewin/yadm
• Owner: tlewin
• License: epl-1.0
• Created: 2019-01-02T21:54:25.000Z (over 7 years ago)
• Default Branch: master
• Last Pushed: 2019-05-16T07:41:34.000Z (almost 7 years ago)
• Last Synced: 2024-10-19T05:18:04.450Z (over 1 year ago)
• Topics: clojure, database, datamapper, sql, validation
• Language: Clojure
• Size: 54.7 KB
• Stars: 1
• Watchers: 2
• Forks: 0
• Open Issues: 0
• Metadata Files:
  • Readme: README.md
  • Changelog: CHANGELOG.md
  • License: LICENSE

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README

          
# YADM

A simple Clojure library for data mapping where it's possible to define associations, validations and callbacks.

## Warning

The current version it's **not** production ready yet and the APIs **might change** in the next interations.

## Build

[![Build Status](https://travis-ci.com/tlewin/yadm.svg?branch=master)](https://travis-ci.org/tlewin/yadm)

## Leiningen

[![Clojars Project](https://img.shields.io/clojars/v/yadm.svg)](https://clojars.org/yadm)

## Usage

```clojure

(ns example.core

  (:require [yadm.core :as yadm]

            [yadm.dmi.default :as ydmi]))

(def db-spec

  {:classname   "org.postgresql.Driver"

   :subprotocol "postgresql"

   :subname     "//localhost:5432/a_db_name"

   :user        "an-user"

   :password    "a-password"})

(def dmi

  (ydmi/default-dmi db-spec))

(yadm/defdatamapper User

  :validations

  {:name  [[:required]]

   :email [[:required]

           [:format :with #"\S+@\S+\.\S+"]]}

  :associations

  [[:has-many :product]]

  :after-create [send-welcome-email])

(yadm/defdatamapper Product

  :validations

  {:name      [[:required]]

   :price     [[:required]

               [:range :min 0]]

   :condition [[:required]

               [:in :set #{"new" "used"}]]}

  :associations

  [[:belongs-to :user]])

(yadm/find-where dmi

                 User

                 [:= :id 1]

                 {:columns  [:id]

                  :includes [[Product {:as      :items

                                       :columns [:name :price]}]]})

(yadm/create! dmi

              User {:name  "Test"

                    :email "test@test.com"})

```

## License

Copyright © 2019 Thiago Lewin

Distributed under the Eclipse Public License either version 1.0 or any later version.