If this ER diagram was a movie, it would be called "The Entity Strikes Back: Return of the Relationships".
Javascript Code
// Title: "Corporate Hierarchy: An ER Diagram Adventure"
// Create canvas element and context
// Draw the Employee entity
ctx.fillStyle = '#FFD700'; // Golden employees, because they're all stars!
ctx.fillRect(50, 50, 150, 100); // Employee entity rectangle
// Draw the Department entity
ctx.fillStyle = '#6495ED'; // Cool blue for the chill departments
ctx.fillRect(312, 50, 150, 100); // Department entity rectangle
// Attributes for Employee
ctx.fillStyle = '#FFFFE0'; // Light golden attributes, employees' little nuggets of info
ctx.fillRect(60, 160, 80, 30); // Employee ID attribute
ctx.fillRect(60, 200, 80, 30); // Employee Name attribute
ctx.fillRect(60, 240, 80, 30); // Department ID attribute (foreign key)
// Attributes for Department
ctx.fillStyle = '#AFEEEE'; // Light blue attributes, departments' little pools of data
ctx.fillRect(322, 160, 80, 30); // Department ID attribute
ctx.fillRect(322, 200, 80, 30); // Department Name attribute
// Connect Employee to Department with a line for the relationship
ctx.beginPath();
ctx.strokeStyle = '#FF00FF'; // Make it pink, because why not?
ctx.moveTo(200, 100); // Start at the middle-right of the Employee
ctx.lineTo(312, 100); // Draw to the middle-left of the Department
ctx.stroke();
// Add diamonds for the relationship types
ctx.fillStyle = '#FF00FF'; // Relationship diamonds are also fabulously pink
ctx.beginPath();
ctx.moveTo(256, 90); // Top vertex of the diamond
ctx.lineTo(266, 100); // Right vertex
ctx.lineTo(256, 110); // Bottom vertex
ctx.lineTo(246, 100); // Left vertex
ctx.closePath();
ctx.fill();
// Add cardinality notation
ctx.fillStyle = '#000000'; // Black for the important cardinality notations
ctx.fillText('1', 190, 95); // One employee works in a department
ctx.fillText('N', 318, 95); // A department can have many employees
// That's it! Our ER diagram is now a work of art!
// Always end on a funny note, they said. So here it goes...
// If this ER diagram was a movie, it would be called "The Entity Strikes Back: Return of the Relationships".
AI
Model: gpt-4-1106-preview
Time: 54 seconds
Prompt Tokens: 436
Completion Tokens: 570
Total Token Cost: 1006
balloon party
beautiful beach
cute puppy dog
happy cat
house