Last active
September 6, 2020 12:04
-
-
Save skinnyjames/8ccc7647eda6b4e27fd6e1196ca6be17 to your computer and use it in GitHub Desktop.
erd.html
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
<html> | |
<head> | |
<script src="https://cdn.jsdelivr.net/npm/vue/dist/vue.js"></script> | |
<script src="https://cdnjs.cloudflare.com/ajax/libs/paper.js/0.12.11/paper-full.min.js" integrity="sha512-ehNJ9gpOQJn8EYlA3P1zUtfrh97G/6WNsjfPfpnMxbo6PX6UXHRj8Ny5MCd36w2eTPlvOSVuXLZmY+/VLVhI4A==" crossorigin="anonymous"></script> | |
</head> | |
<body> | |
<div id="erd" style="width: 100vw; height: 100vh"> | |
<canvas id="erd-canvas" style="width: 100vw; height: 100vh"></canvas> | |
</div> | |
</body> | |
<script> | |
var orderTable = { | |
_id: 'order-table', | |
type: 'table', | |
name: 'Order', | |
columns: [ | |
{ name: 'id', type: 'integer', nullable: false, primary: true }, | |
{ name: 'date', type: 'date', nullable: false, primary: false }, | |
{ name: 'total', type: 'integer', nullable: false, primary: false } | |
] | |
} | |
var customerTable = { | |
_id: 'customer-table', | |
type: 'table', | |
name: 'Customer', | |
columns: [ | |
{ name: 'id', type: 'integer', nullable: false, primary: false }, | |
{ name: 'OrderId', type: 'integer', nullable: false, primary: false } | |
] | |
} | |
var orderToCustomer = { | |
type: 'table-relation', | |
relation: { | |
from: { table: 'order-table', columns: ['id'] }, | |
to: { table: 'customer-table', columns: ['OrderId'] }, | |
modifier: 'has-one' | |
} | |
} | |
new Vue({ | |
el: '#erd', | |
data() { | |
return { | |
tables: [orderTable, customerTable], | |
relations: [orderToCustomer] | |
} | |
}, | |
mounted() { | |
const canvas = document.getElementById('erd-canvas') | |
paper.setup(canvas) | |
this.tables.forEach((table, idx) => { | |
const length = table.columns.length | |
const width = 200; | |
const height = (length * 50) + 50 | |
const leftMargin = (width * idx) + (100 * idx) | |
const center = leftMargin + 100 | |
var size = new paper.Size(width, height) | |
var point = new paper.Point(leftMargin, 0) | |
var shape = new paper.Shape.Rectangle(point, size) | |
shape.strokeColor = 'black' | |
var text = new paper.PointText(center, 25) | |
text.justification = 'center'; | |
text.fillColor = 'black'; | |
text.content = table.name | |
table.columns.forEach((column, idx) => { | |
var line = new paper.Path() | |
line.strokeColor = '#000000' | |
var lineHeight = ((idx + 1) * 50) | |
var columnFrom = new paper.Point(leftMargin, lineHeight) | |
var columnTo = new paper.Point(leftMargin + 200, lineHeight) | |
line.add(columnFrom) | |
line.add(columnTo) | |
line.complete = true; | |
var text = new paper.PointText(leftMargin + 20, lineHeight + 25) | |
text.fillColor = 'black' | |
text.content = column.name | |
}) | |
}) | |
paper.view.draw(); | |
} | |
}) | |
</script> | |
</html> |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment