The third argument is the name of the foreign key on the intermediate model. If you would like to customize the keys of the relationship, you may pass them as the third and fourth arguments to the hasManyThrough method. Typical Eloquent foreign key conventions will be used when performing the relationship's queries. After finding the relevant environment IDs, they are used to query the Deployment model's table. To retrieve these models, Eloquent inspects the project_id column on the intermediate Environment model's table. Though the Deployment model's table does not contain a project_id column, the hasManyThrough relation provides access to a project's deployments via $project->deployments. The first argument passed to the hasManyThrough method is the name of the final model we wish to access, while the second argument is the name of the intermediate model.
This closure will be responsible for adding additional publish date constraints to the relationship query: In addition, a closure will be provided as the second argument to the ofMany method. To accomplish this, we must pass an array to the ofMany method that contains the sortable columns which determine the latest price. In addition, if two prices have the same published date, we will prefer the price with the greatest ID. So, in summary, we need to retrieve the latest published pricing where the published date is not in the future. In addition, new pricing data for the product may be able to be published in advance to take effect at a future date via a published_at column. For example, a Product model may have many associated Price models that are retained in the system even after new pricing is published. It is possible to construct more advanced "has one of many" relationships. Eloquent makes managing and working with these relationships easy, and supports a variety of common relationships:īecause PostgreSQL does not support executing the MAX function against UUID columns, it is not currently possible to use one-of-many relationships in combination with PostgreSQL UUID columns. For example, a blog post may have many comments or an order could be related to the user who placed it. Counting Related Models On Morph To Relationshipsĭatabase tables are often related to one another.Defining Custom Intermediate Table Models.Filtering Queries Via Intermediate Table Columns.You can make a Trait MutiPrimaryKey, then extend the getKey and find method: 1) In App\Classes\Database create he following file MultiPrimaryKey. As usual with my questions, the answer is probably super easy, yet I can't seem to find it right now. ( ::find($reportElement) ), not for the group_id. This obviously doesn't work as anticipated, as it only looks for the id
#ELOQUENT FIND CODE#
My current code for this route is: public function showReports ($id)įoreach ($group->getLatestReports(20) as $reportElement)
If they don't exist, I want to create them. When visiting one of my pages, I want to fetch the latest records from my external data source and match them with the corresponding database rows. id is also not auto-increasing, as it's an external id I'm using for easier internal processing.Įach external id can be present for every of my groups once and have a different score for each of them, hence the composite primary key. The primary key of this table is a composite of id and group_id. Group_id is a foreign key referencing the groups table. The database table reports has the following schema: | id | group_id | score |. Currently however I'm running into some troubles regarding on of my Eloquent models. So far everything's been completely straight-forward and it's just great to work with it. I've recently started working with Laravel 5 as a framework.
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