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Upravene do OOP\TODO: refactor, diskusia, komentare

nosko authored on 26/01/2013 at 08:19:10
Showing 1 changed files
index.php
History View file @ 78643a8
... ... 
@@ -1,10 +1,138 @@
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 <?php
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 /**
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+ * Class representing restaurant
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+ */
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+class Restaurant
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+{
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+
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+    private $url;
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+    private $name;
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+    private $xpaths = array();
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+
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+    public function getName()
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+    {
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+        return $this->name;
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+    }
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+
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+    public function getUrl()
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+    {
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+        return $this->url;
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+    }
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+
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+    public function getXpaths()
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+    {
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+        return $this->xpaths;
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+    }
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+
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+    /**
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+     * @param $name
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+     * @param $url
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+     * @param $xpaths
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+     */
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+    function __construct($name, $url, $xpaths)
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+    {
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+
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+        if (empty($url) || empty($xpaths)) {
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+            throw new InvalidArgumentException("All argument are required");
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+        }
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+
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+        $this->name = $name;
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+        $this->url = $url;
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+
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+        if (is_string($xpaths)) {
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+            $this->xpaths[] = $xpaths;
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+        } else if (is_array($xpaths)) {
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+            $this->xpaths = $xpaths;
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+        } else {
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+            throw new InvalidArgumentException("Xpaths must be string or array");
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+        }
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+    }
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+
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+}
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+
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+
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+class Parser {
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+
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+    private $restaurants = array();
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+
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+    function __construct($restaurants)
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+    {
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+
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+        if (empty($restaurants) || !is_array($restaurants)) {
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+            throw new InvalidArgumentException("Array argument required");
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+        }
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+
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+        $this->restaurants = $restaurants;
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+    }
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+
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+    public function parse()
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+    {
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+        foreach ($this->restaurants as $restaurant) {
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+
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+            $source = file_get_contents($restaurant->getUrl());
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+
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+            if ($source === false) {
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+                throw new RuntimeException("Can't read source address: " . $restaurant->getUrl());
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+            }
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+
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+            $dom = new DOMDocument();
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+            @$dom->loadHTML($source);
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+            $xpath_obj = new DOMXPath($dom);
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+
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+            echo("Restaurant: <a href='{$restaurant->getUrl()}'>" . $restaurant->getName() . "</a><br>\n");
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+
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+            foreach ($restaurant->getXpaths() as $name => $xpath) {
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+
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+                $found = $xpath_obj->query($xpath);
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+
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+                if ($found === false || $found->length === 0) {
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+                    continue;
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+                }
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+
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+                echo "<b>$name</b>";
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+                $exists = false;
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+                foreach ($found->item(0)->childNodes as $elem) {
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+
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+                    $meal = trim($elem->nodeValue);
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+                    if (!empty($meal)) {
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+                        echo("\t<br>$meal\n");
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+                        $exists = true;
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+                    }
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+                }
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+                if (!$exists) {
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+                    echo "<br>{}";
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+                }
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+                echo "<br>";
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+            }
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+            echo "<br>";
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+        }
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+    }
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+
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+
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+}
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+
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+$twenties = new Restaurant("Twenties", "http://www.twenties.sk/", array("Polievky" => '//*[@id="article"]/div[2]/p[1]'));
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+$pulitzer = new Restaurant("Pulitzer", "http://www.pulitzer.sk",
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+    array("Polievky" => '//*[@id="soups"]',
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+        "Hlavne jedla" => '//*[@id="meals"]'));
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+$slovak = new Restaurant("Slovak pub", "http://www.arcaderestaurant.sk/articles/public_menu/show-modules/id/24",
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+    array("Salat" => '//*[@id="table2"]/tbody/tr[10]',
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+        "Polievka" => '//*[@id="table2"]/tbody/tr[2]'));
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+
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+
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+$parser = new Parser(array($twenties, $pulitzer, $slovak));
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+$parser->parse();
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+
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+
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+
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+/**
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  * Lebo bez masa nie je den dnom. Maso je sucast jedla, preto chodim jest do
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  * blizkych malych restauracii.
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  */
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+/*
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+
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 $sites  = [
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         'Pulitzer'      => 'http://pulitzer.sk/',
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         'Twenties'      => 'http://www.twenties.sk/'
... ... 
@@ -44,7 +172,7 @@ foreach ($sites as $restaurant => $site)
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                 }
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                 $found_meal = FALSE;
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-		foreach ($oh_my_god_here_are_saved_meals->item(0)->childNodes as $elem)
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+                foreach ($oh_my_god_here_are_saved_meals->item(0)->childNodes as $elem)
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                 {
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                         $meal_meal_meal = trim($elem->nodeValue);
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                         if (! empty($meal_meal_meal))
... ... 
@@ -58,7 +186,7 @@ foreach ($sites as $restaurant => $site)
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                 {
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                         append_result("\tNevaria!!! Daj mi niekto gulomet, nech ich zabijem!\n");
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                 }
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-                else
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+                else
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                 {
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                         append_result("\n");
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                 }
... ... 
@@ -72,3 +200,5 @@ function append_result($text)
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         global $output_file;
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         file_put_contents($output_file, $text, FILE_APPEND | FILE_TEXT);
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 }
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+
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+*/