anpdf/app/api/book.php

<?php
/**
 * 
 */

function bookid_kuri($slug) {
    
    $query =  "
    SELECT 
        `price_id`, `pricename`, `categoryname`, `categoryslug`,  price.category_id AS category_id, `BeginDate`, `priceanons`, `priceimg`, `pricehash`, `price`, `sub` 
    FROM 
        `price`
    LEFT JOIN `pricecategory`
        ON price.category_id = pricecategory.category_id         
    WHERE 
        `priceslug` = '$slug'
    LIMIT 1
    ";

    $book = dbl_get($query);

    if (isset($book['price_id'])){
        
        $book['pic'] = IMGSRV."price/180x280/{$book['price_id']}.{$book['priceimg']}"; 
        $book['links']['pdf'] = SITE.'read/'.$book['pricehash']; 
        $book['links']['text'] = SITE.'readtext/'.$book['pricehash'];  
        $book['links']['download'] = SITE.'pub/files/pdf/'.$book['pricehash'].'.pdf';
        
        return $book;
    }    


}






/**
 * вернуть товары магазина (все или по фильтру)
 */
function api_books_kuri($category = 'knigi', $filter = 'all', $page = 1){

    $limit = 24;

    if ($page > 1){
        $offset = $limit * ($page - 1);
        $offset_str = ", $offset";
    }
    else {
        $offset_str = '';
    }
   
    if ($category == 'all'){
        $where = '';
    }
    else {

        $category_sql = "SELECT `category_id` FROM `pricecategory` WHERE `categoryslug` = '$category' LIMIT 1";
        
        $category = db_get($category_sql);
        
        if (isset($category['category_id'])) {
            $category_id = $category['category_id'];
            $where = "WHERE `category_id` = $category_id";
        }    
             
    }
    
    $db_count = db_get("SELECT COUNT(price_id) AS count FROM `price` $where LIMIT 1;");

    if (isset($db_count['error']))
        return False;

    if (isset($db_count['count']))
        $count = $db_count['count'];           
    
    $sql_books = "SELECT * FROM  `price` $where ORDER BY `price_id` DESC LIMIT $limit $offset_str";
    $books = db_get($sql_books);

    if (!isset($books['error'])) {
        
        if ($count > $limit){
            $pages = ceil($count / $limit);
        }
        else{
            $pages = 1;
        }
        
        $result['books'] = $books;
        $result['count'] = $count;
        $result['pages'] = $pages;
        $result['page'] = $page;
    }

   return $result;

}


/**
все категории
*/
function api_cats(){

        $cats = db_get(
            "SELECT * FROM pricecategory WHERE visibled = 1"
        );

        if (isset($cats['error']))
            return False;

        $result = [];    

        foreach ($cats as $cat){
            $result[$cat['categoryslug']] = $cat;
        }

        return $result;

}


function book_slug($book){

    $return = '';

    if ($book['category_id'] == 1){

        $name = $book['pricename'];
        
        $start = strpos($name, '(');
        $end = strpos($name, ')');
        $end = $end -1;

        $number = substr($book['pricename'], $start + 1, $end - $start);
        
        $result = "argumenty-nedeli-$number";
       
    }
    else {
        $result =  transliturl($book['pricename']);
    }

    return $result;

}


function add_book_slug(){

    $books = db_get(
        "SELECT * FROM price;"
    );

    foreach ($books as $book){
        $slug = book_slug($book);
        $sql =  "UPDATE `price` SET `priceslug` = '$slug' WHERE price_id = ".$book['price_id'].';';
        echo "$sql<br>";
       
    }


}