Datatables server-side processing - PHP / PostgreSQL - advanced queries

Concluído Postado há 5 anos Pago na entrega
Concluído Pago na entrega

I´m trying to figure out how to group data from joined table in Datatables server-side PHP script.

The data for datatables in prepared by the PHP script using an SSP class modified for postgreSQL connection.

The table consists of products and their categories.

Everything is working well, but I cannot figure out how to prepare the SELECT statement in order to group product categories per product.

To make it easier to understand my problem you can see a setup example below.

PostgreSQL DB table structure:

Table: products_table

------------------------------------------

id | title | pr_template_id

------------------------------------------

1 | Product 1 | 1

2 | Product 2 | 2

3 | Product 3 | 3

------------------------------------------

Table: product_categories_template_relations

------------------------------------------

id | pr_template_id | category_id

------------------------------------------

1 | 1 | 1

2 | 1 | 2

3 | 2 | 2

4 | 2 | 3

5 | 3 | 1

------------------------------------------

Table: product_categories

------------------------------------------

category_id | title

------------------------------------------

1 | Category 1

2 | Category 2

3 | Category 3

------------------------------------------

Server side script (PHP):

<?php

$table = <<<EOT

(

SELECT

[login to view URL],

a.pr_template_id,

[login to view URL] as producttitle,

b.pr_template_id,

b.category_id,

[login to view URL] as cattitle

FROM products_table a

LEFT JOIN product_categories_template_relations b ON a.pr_template_id = b.pr_template_id

LEFT JOIN product_categories c ON b.category_id = c.category_id

) temp

EOT;

?>

Current Datatables results:

------------------------------------------

Product ID | Product title | Category

------------------------------------------

1 | Product 1 | Category 1

1 | Product 1 | Category 2

2 | Product 2 | Category 2

2 | Product 2 | Category 3

3 | Product 3 | Category 1

------------------------------------------

Datatables results I´m looking for:

---------------------------------------------------------

Product ID | Product title | Category

---------------------------------------------------------

1 | Product 1 | Category 1, Category 2

2 | Product 2 | Category 2, Category 3

3 | Product 3 | Category 1

---------------------------------------------------------

So basically I´m currently stuck at Server side script (PHP) and how to formulate the SQL query correctly.

I only accept bids from developers with specific experience in advanced Datatables server-side scripting.


Please also see this description of the problem:
https://stackoverflow.com/questions/51042935/datatables-server-side-php-using-ssp-class-how-to-group-after-join

Datatables PHP PostgreSQL

ID do Projeto: #17247154

Sobre o projeto

16 propostas Projeto remoto Ativo em há 5 anos

Concedido a:

phiona06

You need use this script SELECT [login to view URL], [login to view URL] as producttitle, string_agg(DISTINCT [login to view URL], ',') as cattitle FROM products_table a LEFT JOIN product_categories_template_relations b ON a.pr_template_id Mais

$35 USD em 0 dias
(16 Comentários)
4.4

16 freelancers estão ofertando em média $163 nesse trabalho

abugosia

Hello, I'm Abu Gosia. I'm interesting your project very well I'm good in Website Design, PHP, Laravel, Codeigneter, Wordpress, C#, .Net, MVC, Angular.js, ASP.NET expert. I m quite well experienced in these jobs. Le Mais

$222 USD in 3 dias
(158 Comentários)
6.7
mamoona016

Datatables server-side processing - PHP / PostgreSQL - advanced queries Hello, I have read the details that you mentioned in your project description. I am willing to work with you on this project. I hope that we can Mais

$144 USD in 3 dias
(73 Comentários)
6.5
schoudhary1553

Hello, I can help with you in your project Datatables server-side processing - PHP / PostgreSQL - advanced queries. I have more than 5 years of experience in Datatables, PHP, PostgreSQL. We have worked on several si Mais

$250 USD in 3 dias
(50 Comentários)
6.1
pakistansolution

Hi, I am server side expert. I have read your description i have understood what you want. Please get in touch so we can start your project. Thanks

$100 USD in 2 dias
(73 Comentários)
5.9
paulprabhakarand

Hi, I read your requirement and understood that you need some one good at PHP and Postgres SQL knowledge to write best queries on grouping. I am good at both the technologies, last week I developed and delivered an ap Mais

$90 USD in 2 dias
(23 Comentários)
5.0
rrgamit

HELLO SIR . HOW ARE YOU? I HAVE GONE THROUGH YOUR REQUIREMENT AND I AM SURE I CAN HELP YOU. I HAVE MORE THAN 7 YEARS EXPERIENCE IN CI, MYSQL, HTML, Graphic Design, PHP, Website Design. FOR FURTHER DISCUSS Mais

$155 USD in 3 dias
(38 Comentários)
4.2
promition

Hello Sir/Madam, Wish you a very good day. I have been working as a professional senior full stack developer for 5 long years now. I have spent my 5 years to get the best experience as a full stack developer using t Mais

$155 USD in 3 dias
(4 Comentários)
2.8
vandanavishwaka9

Hi, I have similar work experience in this work. i love to complete this task on given schedule. please share you requirement specification details.

$244 USD in 7 dias
(5 Comentários)
1.8