I have the table client_contacts like:
id
client_id
contact_type_id
data
1
1
3
johndoe#gmail.com
2
2
4
+999 999 999
3
..
..
....
In my contact_types table I have the following types:
id
description
1
address
2
fixed phone
3
email
4
mobile
I want the ability to sort all the contacts that are in the data column and by that, the possibility to sort with the contact_type_id. How to do it in Laravel 8 with Eloquent\Builder? I am using paginate as well.
Some uses:
Sort ASC all the emails and furthermore the possibility to sort two contact_types like fixed phone ASC and mobile DESC.
In my client model, I have hasMany() to the client_contacts model.
According to documentation:
MYSQL:
https://dev.mysql.com/doc/refman/8.0/en/string-functions.html#function_field
LARAVEL:
https://laravel.com/docs/9.x/queries#orderbyraw
You can Add This Quote Of Code:
->orderByRaw("FIELD(contact_types.description, 'addresses', 'fixed phones', 'email', 'mobile') ASC")
Related
image
image2
Now I have like this
image3
but I want have more categories
like this
How to select many category?
Let’s say in your case, we need to define the category for every features. So feature can have many categories and inverse category can have many features. Thus, it will be a Many To Many relationships.
To accomplish this we need to create 3 tables features, categories, and intermediate table feature_category. The feature_category table will have the feature_id and category_id column which connects both feature and category table and this intermediate table called the pivot table.
Here are the table structures:
features
id - integer
name - string
categories
id - integer
name - string
feature_category
feature_id - integer
category_id - integer
=> category
id name
-- -------
1 Category 1
2 Category 2
3 Category 3
4 Category 4
=> features
id name
-- -------
1 Feature 1
2 Feature 2
3 Feature 3
4 Feature 4
=> feature_category
id feature_id category_id
-- ------- -------
1 1 1
2 2 2
3 3 2
4 3 3
4 3 4
===============================
Our feature_category table before sync() operation:
id feature_id category_id
-- ------- -------
1 1 1
2 2 2
3 2 3
4 2 4
5 3 2
6 4 3
Laravel Sync() example:
<?php
use App\Models\Feature;
$user = Feature::find(2);
// Want to keep only "Category 2" (Id 2) category
$user->category()->sync([2]);
After performing the above operation, our feature_category table will look like below:
id feature_id category_id
-- ------- -------
1 1 1
2 2 2
5 3 2
6 4 3
Checkboxes or dropdowns can be used from the frontend to select multiple categories for features and sync() method can be used to update feature cards accordingly.
First you need to create new table feature_category with two fields :
(same type of features.id) feature_id
(same type of categories.id) category_id
Second create belongsToMany relationship directly in Voyager.
Example :
I have 8 tables with data of sold products. Each table is about a unique product. In Power BI, I want to create a matrix, containing the sold quantities (values) per product (rows), per month (columns), and the number of unique customers who bought the products.
Each of the 8 tables with the sales data has the following structure. So the App ID is different for each table, but is constantly the same within a table. Example for a Cars table:
Customer ID Month App ID
29273 2020-3 1
90283 2018-5 1
55824 2016-12 1
55824 2018-10 1
55824 2021-1 1
So, a bicycle table would have the same structure, but then the App ID's would be, for example 2, in the entire table.
I have two tables that are connected with the 8 product tables in a one-to-many relationship. The Calendar table based on the Month column, and the App table based on the App ID column.
The table Calendar:
Month
2015-1
2015-2
2015-3
2015-4
2015-5
...
...
The table Apps:
ID Name
1 Cars
2 Bicycle
3 Scooter
4 ...
So, the structure is:
I created the Calendar en Apps tables so that I could use them for the matrix, but it doesn't work like I want so far. At the end, I want to create a matrix like this (where P = the number of products sold, and C = the number of customers in that month for that product):
Product 2015-1 2015-2 2015-3 2015-4 2015-5 ...
P C P C P C P C P C
Cars 3 2 5 5 7 6 2 1 4 2
Bicycle 11 9 17 14 5 5 4 4 8 6
Scooter ...
Skateboard ...
As mentioned, I made that Calendar and App table so that I can use the columns from it to fill the labels in the rows and columns. What I am unable to do is create such a 'general variable' of the number of products sold per product, and the number of customers associated with it.
Can someone explain to me how I can fill the matrix with the numbers of products (and customers) sold, so that the matrix looks like the one described above?
I think this is pretty straight forward. You actually don't need the 'Calendar' table as it only contains the same info as is already in the 'Sales' table.
You should configure the matrix like this:
Rows: 'Name' (from the 'Apps' table)
Columns: 'Month' (from the
'Sales' table)
Values:
C = Count distinct of CustomerId (from 'Sales' table) [this counts the unique customers per month and app)
P = Count of CustomerId (from 'Sales' table) [this counts the rows of the 'Sales' table which is your number of products if every row represents 1 sale)
The different aggregations (count distinct, count) can be found under the Values' options:
Laravel Eloquent condition to fetch hierarchy level.
I have a table named routes and it is self-referencing
Sample data:
(PK)
Id title route_id
1 users null
2 home null
3 foo 1
4 bar 3
5 hoge 3
I would want to have a function to get routes according to its hierarchy
$this->routes->getByHierarchyLevel(1);
// results
Id title route_id
1 users null
2 home null
$this->routes->getByHierarchyLevel(2);
// results
Id title route_id
3 foo 1
$this->routes->getByHierarchyLevel(3);
// results
Id title route_id
4 bar 3
5 hoge 3
Is there a single chained query builder/eloquent builder possible for this one?
I already made a custom function of this one but it is a looped query or the other solution is fetch all and filter.
I would suggest to introduce a new column level in your routes table and at the time of insertion detect their nested level and save it in your table, this way you can perform your filters easily without any extra overhead , otherwise you would need complex/expensive queries to be able to detect their level and apply filter
id
title
route_id
level
1
users
null
1
2
home
null
1
3
foo
1
2
4
bar
3
3
5
hoge
3
3
I have two tables,
User cities user_cities
id name id name user_id city_id
1 aaa 1 cityA 2 1
2 bbb 2 cityB 2 3
3 ccc 3 cityC 1 2
3 3
3 2
Now i am filtering the user by cities. I am having the city_id = 2. So that i have to get the count of users belongs to the city_id 2.
How can i get that using laravel eloquent
As you describe in your answer you have the third table user_cities.
If you have table user_cities then count user like
DB::table('user_cities')->where('city_id', '2')->count();
There are different ways to do this, check https://laravel.com/docs/5.8/queries
But a simple way of doing it could be:
UserCity::whereCityId(2)->count();
Or:
UserCity::where('city_id',2)->count();
If you have set correctly the relationship between them, you can do something like that:
City::where('id', '=', 2)->withCount('users')->get();
It will place a {relation}_count column on your resulting model, and thus you can call it like a property: $city->users_count
Edit: For further information, you can check the official documentation.
Try this query :
$count = City::where('id', 2)->whereHas('users')->count();
I'm a newbie in Laravel and working on a small e-commerce project. I need to get products list that related to transaction count in the transaction table. Below is my demo data.
tb_product:
product_id product_name
1 A
2 B
3 C
tb_transaction:
transaction_id product_id
1 2
2 1
3 2
4 2
5 1
6 3
From tb_transaction. I have sale list as below
B = 3sales, A =2sales, C=1sale
I need to generate Laravel eloquent result like [{B...},{A...},{C...}] (count from max to min). I had tried some from google but no luck. Appreciated for advice, Thanks.
Try the below query,
DB::table('tb_product')
->select('tb_product.product_id', 'tb_product.product_name', DB::raw("count('tb_transaction.product_id') as salesCount"))
->join('tb_transaction', 'tb_transaction.product_id', 'tb_product.product_id')
->orderBy('salesCount', 'DESC')
->groupBy('tb_product.product_id', 'tb_product.product_name')
->get()