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https://github.com/achiku/planter

Generate PlantUML ER diagram textual description from PostgreSQL tables
https://github.com/achiku/planter

er-diagram plantuml posgresql

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Generate PlantUML ER diagram textual description from PostgreSQL tables

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# planter

[![test](https://github.com/achiku/planter/actions/workflows/test.yml/badge.svg)](https://github.com/achiku/planter/actions/workflows/test.yml)
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Generate PlantUML ER diagram textual description from PostgreSQL tables

## Why created

A team with only software engineers doesn't need ER diagram that much as long as they have decent experience in Relational Database modeling. However, it becomes very helpful to have always-up-to-date ER diagram when marketing/promotion/operation teams consisting of those who are fluent in writing/reading SQL, join to the game.

[PlantUML](http://plantuml.com/) supports ER diagram in the latest version with [this awesome pull request](https://github.com/plantuml/plantuml/pull/31). The tool, planter, generates textual description of PlantUML ER diagram from pre-existing PostgreSQL tables, and makes it easy to share visual structure of relations with other teams.

## Installation

```
go get -u github.com/achiku/planter
```

## Quick Start

```
$ planter postgres://planter@localhost/planter?sslmode=disable -o example.uml
$ java -jar plantuml.jar -verbose example.uml
```

![er diagram](./example/example_gen.png)

## Specify table names

```
planter postgres://planter@localhost/planter?sslmode=disable \
-t order_detail \
-t sku \
-t product
```

## Help

```
$ planter --help
usage: planter []

Flags:
--help Show context-sensitive help (also try --help-long and --help-man).
-s, --schema="public" PostgreSQL schema name
-o, --output=OUTPUT output file path
-t, --table=TABLE ... target tables
-x, --exclude=EXCLUDE ... target tables
-T, --title=TITLE Diagram title

Args:
PostgreSQL connection string in URL format
```

## Test

Run on docker

```
make
```

or setup manually and run test

```
create database planter;
create user planter;
```

run `go test ./... -v`