Fix doubling tables in n-ary relationships with 0,1 / 1,1

[erdiag.git] / example.html

<h2>MCD graph:</h3>
<div id="mcd"></div>

<h2>MLD graph:</h2>
<div id="mld"></div>

<h2>SQL instructions:</h2>
<div id="sql"></div>

<script src="//cdnjs.cloudflare.com/ajax/libs/underscore.js/1.8.3/underscore-min.js"></script>
<script src="parser.js"></script>
<script>
	let er =
		new ErDiags(`
			[Musician]
			+id (integer)
			name
			band
			role (varchar not null)

			[Instrument]
			+name
			family (varchar not null default "Brass")

			[Piano]
			type

			[Guitar]
			type

			{Play}
			Musician +
			Instrument *
			--
			event

			is_a
			Instrument Piano Guitar
		`);
	er.drawMcd("mcd"); //,"bubble"
	er.drawMld("mld");
	er.fillSql("sql");
</script>