How to fetch data from relationship in strapi.js? - strapi

I have created two content type builder which are category and sub-category respectively. While adding sub-category I had define one relationship which is one-to-many.
After creating successfully, I found that the basic CRUD API has been created and it works fine.
Now I need to find data like if I pass category-id then it has to return me it's all sub-category list.
Well, for this I can also write API manually, But I thought that strapi provides a feature of relationship though it may have some way to fetch data from the relationship table. In my app, I had set up a project with MySQL.
Expected output: Need a way to fetch data from a relation without writing custom API. Looking for inbuilt feature of strapi.

You have to use deep filtering.
πŸ“šHere is the documentation https://strapi.io/documentation/3.0.0-beta.x/guides/filters.html#deep-filtering
So you will be able to do /categories?sub-category.id=[your id]

Related

How to add another table column in searchable array in nova?

i am getting data from different different tables and i displayed all those in one section that section contains search button also, i want to add another resource field as a searchable item in nova ,i am trying to add based on the relation of the particular table but it's throwing an error undefined column, How to add please help..
public static $searchable=['id','name','account.type'];
Basically, the search by relationship is not possible through Nova.
A package well made for your needs is this one: LaravelNovaSearch
This package includes both relationship search but also has other useful features making the search much more comprehensive.
Another package, which I have not personally tested, but which seems to be useful for your needs: NovaSearchRelations
My advice is to use LaravelNovaSearch, more maintained and more complete.

Is there a way to get all the relations and fields of particular model in laravel?

I am trying to create a script that could help me generate a GraphQL schema with all fields and relations exist in the models.
if I could get that, php-lighthouse would help me for the rest of the work.
There is no way to get all relations of a particular Eloquent model without the user specifying them in some way, such as an attribute on the model that holds all relation names, or type-hinting those methods returning a relation. See laravel-eloquent-to-graphql for an example.
You can however get all fields of a model (that are saved in the database) by inspecting its table.
If you're looking for a GraphQL generator, there are Laravel Bakery and laravel-eloquent-to-graphql. Laravel Bakery generates a GraphQL schema on-the-fly, while laravel-eloquent-to-graphql generates a GraphQL schema statically.
There is also Lighthouse-Utils, which can generate queries and mutations for already-defined types.

How to make an API endpoint in Laravel, that can be used to search any table we want?

Background
Let us consider a hypothetical scenario. Suppose we have five different tables in our database,
Customers
Categories
Products
Orders
OderDetails
Our client wants us to add a search bar to the frontend, where a user can search for a specific product and upon tapping the search button, matching products has to be displayed on the frontend.
My Approach for Tackling This Problem
In order to add the aforementioned functionality, I came across the following strategy.
πŸ‘‰ I would add an input box to ender the product name and a submit button.
πŸ‘‰ Upon pressing the submit button, a GET request will be sent to the backend. On the query parameters, the product name that has been entered by the user will be included
πŸ‘‰ Once the GET request is received to the backend, I will pass it down to the ProductsController and from within a method defined inside the ProductController, I will use the Product model to query the products table to see if there are any matching results.
πŸ‘‰ If there are any matching results, I will send them to the frontend inside a JSON object and if there aren't any matching results, I will set a success flag to false inside the JSON object and send it to the frontend
πŸ‘‰ In the frontend, if there are any matching results, I will display them on the screen. Else, I will display "No Results Found!"
Problem with My Approach
Everything works fine if we only want to search the products table. But what if, later our client tells us something like "Remember that search functionality you added for the products? I thought that functionality should be added to orders as well. I think as the list of orders by a user grows and grows, they should be able to search for their previous orders too."
πŸ‘‰ Now, since in our previous approach to search products was implemented in the ProductController using the Product model, when we are adding the same functionality to Orders, WE WOULD HAVE TO DO THE SAME THINGS WE DID IN THE ProductsController AGAIN INSIDE THE OrdersController USING THE Order model. It does not take seconds to understand that this leads to duplication of code.
Problem Summary
❓ How do we add an API endpoint in laravel for a search functionality that can be used to search any table in our database and get results, instead of the search functionality being scoped to a specific controller and a corresponding model?
A good start would be to create a trait called something like searchable and add it to all the models you want to search and put any shared logic between the different models in there. Possibly you'd want to manually allow different columns so in each model you have an array of searchable columns which you'd refer to in your trait.
Your controller would have to point to the related model and call a method in the trait that searches.
As others have pointed out this is a high level question so I won't go too much in detail. Of course there are a million ways to implement this, just try and keep shared logic in place.

How does beforeSaveAddressInformation plugin

I was looking at this post: Magento 2 Add a custom input field on chackout forrm and save it
I have tried the same way but I am not sure how this part came
$customField = $shippingAddressExtensionAttributes->getFiscalCode();
$shippingAddress->setFiscalCode($customField);
Where is this getFiscalCode?
It's a Custom AttributeCode.
the getFiscalCode() method is an accessor method that is used to identity fields such as the one that is created with the extension attribute fiscal_code mentioned in the example.
It is not just extension attributes, but all collection models in magento use the following camel casing structure where for example the column entity_id in database table, can be accessed via either $modelCollection->getEntityId() or $modelCollection->setEntityId($valueOfEntityId)
This is a good read to understand the idea Magento 2: CRUD Models for Database Access

Model with multiple tables

We run two websites, A and B. Each website has its own table, _a_ and _b_ which have exactly the same structure. Yes, I know it's silly, we'll be rewriting them over the course of this year and next.
Using Laravel I need to create a model that will hold both tables content. I don't need any kind of UPDATE or INSERT functionality, I just need to SELECT and use with to access other model information.
Is this possible with Laravel 4.1? I can individually model each table, but that would make it difficult in the future.
I was able to fix this by making using the Repository pattern and merging the results of each model into the get and all functions.

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