Lesson Results — 434 Matches
Let's Learn AdonisJS 6 #5.12
How To Create Factory Relationships from a Pool of Data
In this lesson, we'll learn how we can refactor our fake data seeder to allow us to assign cast members and crew members to our movies via our many-to-many relationships from a single pool of cineast records.
Let's Learn AdonisJS 6 #5.11
A Deep Dive Into Relationship CRUD with Models
In this lesson, we'll take a deep look at how we can perform CRUD operations with one-to-one, one-to-many, many-to-one, and many-to-many relationships using our Lucid Models.
Let's Learn AdonisJS 6 #5.10
Many-To-Many Model Factory Relationships
In this lesson, we'll learn how we can define and use many-to-many relationships with Model Factories, including how we can define pivot table data when creating our fake records.
Defining Many-To-Many Relationships and Pivot Columns
In this lesson, we'll learn how you can define many-to-many relationships within your Lucid ORM Models. We'll also discuss the relationship options, and how you can automatically include pivot table data with all queries.
Using Eager and Lazy Loading to Load A Movie's Writer and Director
In this lesson, we'll learn how we can use eager loading to preload our writer and director onto our movie's details. We'll then, learn how we can load our writer and director onto our movie's details using lazy loading.
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.
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.
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.
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.
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.
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).
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.
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.
Let's Learn AdonisJS 6 #4.17
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.
Let's Learn AdonisJS 6 #4.16
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.
Let's Learn AdonisJS 6 #4.15
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
Let's Learn AdonisJS 6 #4.14
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.
Let's Learn AdonisJS 6 #4.13
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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