How EdgeDB obviates the need for ORMs, plus an introduction to our typesafe EdgeQL query builder for TypeScript. By Colin McDonnell.

1. 1

2. Schema
Migrations
CRUD
2

3. Modeling schema
type User {
link posts := .<author[is Post];
}
type Post {
required link author -> User;
}
3
model User {
id Int @id @default(autoincrement())
posts Post[]
}
model Post {
id Int @id @default(autoincrement())
author User @relation(fields: [authorId],
references: [id])
authorId Int
}

4. E
d
g
e
Q
L SDL
Your
schema
4

5. Modeling schema
type BlogPost {
required property title -> str {
constraint expression on (re_test(r'[A-Z]', __subject__[0]));
}
}
5

6. Modeling schema
type BlogPost {
required property title -> str;
required property published -> bool;
property content -> str;
constraint expression on (exists .content or not .published)
}
6

7. Modeling schema
type BlogPost {
required property title -> str;
property slug :=
re_replace(r'[^a-z]+', '_', str_lower(.title), flags := 'g');
}
7

8. Modeling schema
type BlogPost {
required property title -> str;
property slug := re_replace(
r'[^a-z]+',
'_',
str_lower(.title),
flags := 'g');
index on (.slug);
}
8

9. type BlogPost {
required property title -> str;
required link author -> User;
}
type User {
required property username -> str;
multi link blog_posts := .<author[is BlogPost];
}
Modeling schema
9

10. Modeling schema
abstract type Commentable {
multi link comments -> Comment;
}
type BlogPost extending Commentable {
required property title -> str;
}
type Comment extending Commentable {
required property text -> str;
}
10

11. Migrations
11
Automatically tracked
Generated by the database
Official workflow

12. The CRUD API
prisma.movie.findMany({
where: {
title: {
equals: 'The Avengers’,
},
},
select: {
title: true,
actors: {
where: {
name: {
startsWith: “Chris”
},
},
},
},
});
Code-first
Object-oriented
Idiomatic
12

13. ✨ The EdgeQL query builder ✨
13
LIVE DEMO

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