I have two tables actividadsand fichas... and a pivot table actividad_ficha. I have created another column in my pivot table: orden_actividad where I would like to save the order of the 'activities' in every 'ficha'.
My main problem is that I have no idea how to create an order in my pivot table. I mean, for example, ficha 4 is related in my pivot table with actividad 1, actividad 6 and actividad 9, and I want to create the order of the activities:
ficha - actividad - orden_actividad
4 1 1
4 6 2
4 9 3
My purpose is, after that, order the activities by 'orden_actividad' and allow the user to reorder them.
Any idea how to do that?
You can add values to custom columns in your pivot table like this:
$actividad_id = /* fetch $actividad_id here */;
$orden_actividad = $ficha->actividad->count() + 1;
$ficha->actividad()->attach($actividad_id, array('orden_actividad', $orden_actividad));
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:
I have a requirement related as below
1-If there is employee record then count the number of rows
a-if there are four rows then follow the layout 1,
and populate the column1 and column 2 with values in report and ltrimrtrim
b- if there are three rows, then follow the layout 2,
and hardcode the column 1 and column 2 with NULL
Otherwise, look for the employee record.
Couldn't get the logic, I used the router with as if column 1 and two null the send to layout two else 1. But the requirement is different.
router transformation, if null, layout one else 2
Step 1 - Use SRT>AGG>JNR to calculate count. create new column as count_all and set to COUNT(*). Please group by proper key columns.
Step 2 - Use RTR next to split data based on your condition.
group 1- count_all =4 then follow the layout 1 and...
group 2- count_all =3 then follow the layout 2 and...
group 3 - if count <3 then do employee record.
I have one table scores where I have saving users scores. It's looks like this
table `scores`
id | points | user_id
1 5 1
2 2 1
3 4 1
4 1 3
5 10 2
I want to select each user, sum his points and show as a ranking. The result from above should be
user_id | points
1 11
2 10
3 1
The query with which I came up is
$sumPoints = Scores::select( \DB::raw("sum(points) as numberOfPoints"), \DB::raw("count(id) as numberId"))->groupBy("user_id")->first();
The problem is in ->first() because it's return only one result.. it is working as must. If I try to use ->get() instead I've got Undefined property error. How should I use this?
The query which is working in phpmyadmin
SELECT count(id) as numberId, sum(points) as numberOfPoints FROM `points` GROUP BY `user_id`
You can use something like this
$sumPoints = Scores::select( \DB::raw("sum(points) as numberOfPoints"), \DB::raw("count(id) as numberId"))->groupBy("user_id")->get();
foreach($sumPoints as $point){
dd($point); //OR dd($point->numberOfPoints)
}
I have millions of records in a table and I need to update particular records which have wrong values. How do I do it?
Example:
Si Item_Id
1 T21547856
2 T45200254
3 T54785000
Need to update like:
T21547856 = CS2541
T54785000 = CS5475
This is just an example. I have millions of records and need to update more than half a million.
One approach would be:
Create an index on item_id, then just do the updates. update table set item_id = 'CS2541' where itme_id = 'T21547856'
This works only item_ids are unique in your table.
After this, you may drop the index if you don't need it.
A second approach would be to create another table, B, with values to be updated:
si item_id
1 CS2541
3 CS5475
Then do a merge:
merge into your_table a
using b
on a.si=b.si
when matched then update set a.item_id=b.item_id;