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#1 by (4 votes)

1

Next, I've already reviewed this community and got some nice fonts but it did not help me, I'm trying to separate my links by categories that are also stored in the database.

If someone has a tutorial to thank me for.

See the prints below

1st print category table 2ndprintlinktable 3rdprinthomepageofthesite

Asyoucanseeinthethirdimage,itisnotseparatingbycategoriesisatremendousmess,nowlet'sthecodes:

Mymodel:

<?phpclassDocs_ModelextendsModel{publicfunction__construct(){parent::__construct();}publicfunctiongetCategories(){return$this->_db->read('SELECT*FROM'.DATABASE_PREFIX.'cats',array());}publicfunctiongetDocsCategories(){$data=$this->getCategories();$arr=[];foreach($dataas$value){$arr=$value;}//return$this->_db->read('SELECT*FROM'.DATABASE_PREFIX.'docsWHEREid_cat=:id',array(//':id'=>$arr['id_cat']//));return$this->_db->read('SELECT*FROM'.DATABASE_PREFIX.'docsc1,'.DATABASE_PREFIX.'docsc2WHEREc1.id_cat=1ANDc1.id_cat=c2.id_cat',array(//':idcat'=>$arr['id_cat']));}}

Myview:

<sectionclass="section">
    <div class="container">
        <div class="row">
            <div class="col-md-3">
                <?php foreach($data['cats'] as $key => $value): ?>
                <div class="panel panel-default">
                    <div class="panel-heading"><?php echo $value['title'] ?></div>
                    <div class="list-group">
                    <?php foreach($data['docs'] as $key2 => $value2): ?>
                      <a href="#" class="list-group-item"><?php echo $value2['title'] ?></a>
                    <?php endforeach; ?>
                    </div>
                </div>
                <?php endforeach; ?>
            </div>

If you need more information I'll be happy to help.

php mvc

asked by anonymous 18.05.2016 / 03:42

1 answer

What does this statement do? What is the difference between the b / b and strong / strong tags? [duplicate]

score 4 · Accepted Answer

Depends on the link you want to point to. So that common do not repeat themselves you can use something around that

return $this->_db->read('SELECT * FROM ' . DATABASE_PREFIX . 'cats GROUP BY id_cat', array()); // Agrupamento pelo codigo da categoria.

Further research on SUB-SELECT

Example

SELECT * FROM (
SELECT * 
FROM tabela
ORDER BY id_cliente DESC
) AS retorno
GROUP BY id_cat
LIMIT 4

Complementing the help

Reference that can give you a north.

Basically, from what I understand, you will bring the names of the categories and with the subquery bring the records for each of them

mysql> SELECT A.id_cat,a.title,(SELECT GROUP_CONCAT(id_doc, title) FROM hb_docs WHERE id_cat = A.id_cat) AS retorno FROM hb_cats A ORDER BY a.title ASC;


+--------+-----------+----------------------------------------------------------+
| id_cat | title     | retorno                                                  |
+--------+-----------+----------------------------------------------------------+
|      1 | Começando | 1Visão Geral,2Requisitos,3Intalação                   |
|      3 | Helpers   | 8Database,9Password,10Session,11Url,12Input,13Validações|
|      2 | O Básico  | 4Controladores,5Modelos,6Visualizações,7Erros          |
+--------+-----------+----------------------------------------------------------+
3 rows in set

I hope it helps.