Using Transaction Events To Defer Actions
We can bind handlers to transaction events to easily defer specific actions until after the transaction has been committed and our changes have persisted to the database.
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.
We can bind handlers to transaction events to easily defer specific actions until after the transaction has been committed and our changes have persisted to the database.
In this lesson, we'll learn how to add authentication to a new AdonisJS 6 application using the session guard. In these 15 minutes, you'll learn how to register a user, logout a user, verify a user's credentials and log them in, and more.
In this lesson, we'll learn how we can query pivot table data. We'll then learn how we can also sort and filter our results by those pivot table columns as well.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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.
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).
In this lesson, we'll learn how to use relationships with our Model Factories; easing our capabilities to quickly generate fake data with relationships.
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.
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.
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.
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
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.
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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