Database

Lucid

9 Series
109 Lessons
31h 45m

Lucid is AdonisJS' Object Relational Mapping (ORM). It's a first-party package that follows the active record pattern. With it you can easily perform CRUD operations, add database hooks, normalize data, and so much more.

Lessons.

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Listing and Counting a Writer's Movies
Let's Learn AdonisJS 6 #5.7
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Mar 26

Listing and Counting a Writer's Movies

In this lesson, we'll learn how we can perform multiple different relationship counts with the same relationship using the Model Query Builder. We'll count our writer's total number of released and not-released movies.

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Listing A Director's Movies with Relationship Existance Queries
Let's Learn AdonisJS 6 #5.6
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Mar 26

Listing A Director's Movies with Relationship Existence Queries

In this lesson, we'll learn how we can perform a relationship existence check to grab a list of our cineasts who have directed one or more movies. We'll then create a show page for that director, listing the movies that they directed.

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One to Many Factory Relationships
Let's Learn AdonisJS 6 #5.5
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Mar 22

Seeding Movies with One to Many Model Factory Relationships

In this lesson, we'll learn how we can use Model Factory Relationships to create a pool of cineasts to bind to our movies. This will create cineasts bound to many movies as a writer, director, or both.

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Defining One to Many Relationships with Lucid Models
Let's Learn AdonisJS 6 #5.4
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Mar 22

Defining One to Many Relationships with Lucid Models

In this lesson, we'll learn how to define one-to-many and many-to-one relationships using Lucid Models. We'll also learn how we can specify the columns that should be used for a relationship, allowing us to use one model for multiple relationships.

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Cascading and Deleting Model Relationships
Let's Learn AdonisJS 6 #5.3
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Mar 22

Cascading and Deleting Model Relationships

In this lesson, we'll learn how to account for foreign key constraints when deleting relationships using our Lucid Models. We'll then learn how we can automatically cascade deletions through to relationships.

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Querying Relationships and Eager Vs Lazy Loading
Let's Learn AdonisJS 6 #5.2
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Mar 18

Querying Relationships and Eager Vs Lazy Loading

In this lesson, we'll learn how we can query our relationships using our Lucid Models. We'll then learn what the difference is between eagerly loading a relationship (load) and lazily loading a relationship (preload).

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Factory Relationships
Let's Learn AdonisJS 6 #5.1
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Mar 18

Model Factory Relationships

In this lesson, we'll learn how to use relationships with our Model Factories; easing our capabilities to quickly generate fake data with relationships.

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Defining One to One Relationships
Let's Learn AdonisJS 6 #5.0
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Mar 18

Defining One to One Relationships Within Lucid Models

In this lesson, we'll learn how to define one-to-one relationships within our Lucid Models. We'll learn about the belongs to and has one decorators, their options, and types that make this possible.

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Generating A Movie Slug Using Model Hooks
Let's Learn AdonisJS 6 #4.17
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Mar 15

Generating A Unique Movie Slug With Model Hooks

In this lesson, we'll learn how we can use Model Hooks to generate a unique URL-safe slug based on the movie's title.

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Querying Recently Released and Releasing Soon Movies
Let's Learn AdonisJS 6 #4.16
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Mar 15

Querying Recently Released and Coming Soon Movies

In this lesson, we'll learn how to use the Model Query Builder to query our movies that have been recently released. We'll then do a separate query to get movies that are coming soon.

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Altering Factory States
Let's Learn AdonisJS 6 #4.15
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Mar 15

Tapping into Model Factory States

In this lesson, we'll dive a little bit deeper into Model Factories by introducing factory states. We'll also learn how we can use the tap method to alter a factory result prior to it persisting into the database

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Reusable Query Statements with Model Query Scopes
Let's Learn AdonisJS 6 #4.14
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Mar 11

Reusable Query Statements with Model Query Scopes

In this lesson, we'll learn about Model Query Scopes and how we can use them to create easily reusable query statements that we can apply using the Model Query Builder.

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SQL Parameters and Injection Protection
Let's Learn AdonisJS 6 #4.13
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Mar 11

SQL Parameters and Injection Protection

In this lesson, we'll learn about SQL Parameters, also called query bindings, and how using them helps safeguard our database from malicious attacks attempting to perform SQL Injection.

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Adding A User Profile Model, Migration, Factory, and Controller
Let's Learn AdonisJS 6 #4.12
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Mar 11

Adding A Profile Model, Migration, Factory, and Controller

Uh oh, a new requirement has come in and now we also need to account for user profiles! In this lesson, we'll learn how we can easily create a new model, migration, factory, and controller for an entity in one fell swoop!

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Altering Tables with Migrations
Let's Learn AdonisJS 6 #4.11
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Mar 05

Altering Tables with Migrations

In this lesson, we'll learn how to alter our database tables using migrations both while in development, where we can delete our data, and once our data has already hit production where we need to persist all data.

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Umapped and Computed Model Properties
Let's Learn AdonisJS 6 #4.10
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Mar 05

Unmapped and Computed Model Properties

In this lesson, we'll learn how to add unmapped and computed properties to our Lucid Models. We'll discuss the differences between a model column, unmapped property, and a computed property.

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Querying Our Movies with the Query Builder
Let's Learn AdonisJS 6 #4.9
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Mar 05

Querying Our Movies with the Query Builder

In this lesson, we'll introduce both the database and model query builder. We'll learn the differences between the two and the basics of how to use them.

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Fake Data Factories
Let's Learn AdonisJS 6 #4.8
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Mar 02

Stubbing Fake Data with Model Factories

In this lesson, we'll learn how we can quickly and easily bulk-create dummy/fake data within our database for each of our Lucid Models using Model Factories

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Defining Required Data with Seeders
Let's Learn AdonisJS 6 #4.7
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Mar 02

Defining Required Data with Seeders

Our database will have specific, non-changing, roles and movie statuses. In this lesson, we'll learn how we can quickly and easily create these records inside of our database using seeders.

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The Basics of CRUD
Let's Learn AdonisJS 6 #4.6
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Mar 02

The Basics of CRUD

In this lesson, we'll walk through the basics of creating, reading, updating, and deleting (CRUD) data from our database using our Lucid Models.

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