ZendService\SlideShare

ZendServiceSlideShare

The ZendService\SlideShare component is used to interact with the slideshare.net web services for hosting slide shows online. With this component, you can embed slide shows which are hosted on this web site within a web site and even upload new slide shows to your account.

Getting Started with ZendServiceSlideShare

In order to use the ZendService\SlideShare component you must first create an account on the slideshare.net servers (more information can be found here) in order to receive an API key, username, password and shared secret value – all of which are needed in order to use the ZendService\SlideShare component.

Once you have setup an account, you can begin using the ZendService\SlideShare component by creating a new instance of the ZendService\SlideShare object and providing these values as shown below:

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// Create a new instance of the component
$ss = new ZendService\SlideShare\SlideShare('APIKEY',
                                  'SHAREDSECRET',
                                  'USERNAME',
                                  'PASSWORD');

The SlideShow object

All slide shows in the ZendService\SlideShare component are represented using the ZendService\SlideShare\SlideShow object (both when retrieving and uploading new slide shows). For your reference a pseudo-code version of this class is provided below.

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class ZendService\SlideShare\SlideShow {

    /**
     * Retrieves the location of the slide show
     */
    public function getLocation() {
        return $this->_location;
    }

    /**
     * Gets the transcript for this slide show
     */
    public function getTranscript() {
        return $this->_transcript;
    }

    /**
     * Adds a tag to the slide show
     */
    public function addTag($tag) {
        $this->_tags[] = (string)$tag;
        return $this;
    }

    /**
     * Sets the tags for the slide show
     */
    public function setTags(Array $tags) {
        $this->_tags = $tags;
        return $this;
    }

    /**
     * Gets all of the tags associated with the slide show
     */
    public function getTags() {
        return $this->_tags;
    }

    /**
     * Sets the filename on the local filesystem of the slide show
     * (for uploading a new slide show)
     */
    public function setFilename($file) {
        $this->_slideShowFilename = (string)$file;
        return $this;
    }

    /**
     * Retrieves the filename on the local filesystem of the slide show
     * which will be uploaded
     */
    public function getFilename() {
        return $this->_slideShowFilename;
    }

    /**
     * Gets the ID for the slide show
     */
    public function getId() {
        return $this->_slideShowId;
    }

    /**
     * Retrieves the HTML embed code for the slide show
     */
    public function getEmbedCode() {
        return $this->_embedCode;
    }

    /**
     * Retrieves the Thumbnail URi for the slide show
     */
    public function getThumbnailUrl() {
        return $this->_thumbnailUrl;
    }

    /**
     * Sets the title for the Slide show
     */
    public function setTitle($title) {
        $this->_title = (string)$title;
        return $this;
    }

    /**
     * Retrieves the Slide show title
     */
    public function getTitle() {
        return $this->_title;
    }

    /**
     * Sets the description for the Slide show
     */
    public function setDescription($desc) {
        $this->_description = (string)$desc;
        return $this;
    }

    /**
     * Gets the description of the slide show
     */
    public function getDescription() {
        return $this->_description;
    }

    /**
     * Gets the numeric status of the slide show on the server
     */
    public function getStatus() {
        return $this->_status;
    }

    /**
     * Gets the textual description of the status of the slide show on
     * the server
     */
    public function getStatusDescription() {
        return $this->_statusDescription;
    }

    /**
     * Gets the permanent link of the slide show
     */
    public function getPermaLink() {
        return $this->_permalink;
    }

    /**
     * Gets the number of views the slide show has received
     */
    public function getNumViews() {
        return $this->_numViews;
    }
}

Note

The above pseudo-class only shows those methods which should be used by end-user developers. Other available methods are internal to the component.

When using the ZendService\SlideShare component, this data class will be used frequently to browse or add new slide shows to or from the web service.

Retrieving a single slide show

The simplest usage of the ZendService\SlideShare component is the retrieval of a single slide show by slide show ID provided by the slideshare.net application and is done by calling the getSlideShow() method of a ZendService\SlideShare object and using the resulting ZendService\SlideShare\SlideShow object as shown.

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// Create a new instance of the component
$ss = new ZendService\SlideShare\SlideShare('APIKEY',
                                  'SHAREDSECRET',
                                  'USERNAME',
                                  'PASSWORD');

$slideshow = $ss->getSlideShow(123456);

print "Slide Show Title: {$slideshow->getTitle()}<br/>\n";
print "Number of views: {$slideshow->getNumViews()}<br/>\n";

Retrieving Groups of Slide Shows

If you do not know the specific ID of a slide show you are interested in retrieving, you can retrieving groups of slide shows by using one of three methods:

  • Slide shows from a specific account

    You can retrieve slide shows from a specific account by using the getSlideShowsByUsername() method and providing the username from which the slide shows should be retrieved

  • Slide shows which contain specific tags

    You can retrieve slide shows which contain one or more specific tags by using the getSlideShowsByTag() method and providing one or more tags which the slide show must have assigned to it in order to be retrieved

  • Slide shows by group

    You can retrieve slide shows which are a member of a specific group using the getSlideShowsByGroup() method and providing the name of the group which the slide show must belong to in order to be retrieved

Each of the above methods of retrieving multiple slide shows a similar approach is used. An example of using each method is shown below:

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// Create a new instance of the component
$ss = new ZendService\SlideShare\SlideShare('APIKEY',
                                  'SHAREDSECRET',
                                  'USERNAME',
                                  'PASSWORD');

$starting_offset = 0;
$limit = 10;

// Retrieve the first 10 of each type
$ss_user = $ss->getSlideShowsByUser('username', $starting_offset, $limit);
$ss_tags = $ss->getSlideShowsByTag('zend', $starting_offset, $limit);
$ss_group = $ss->getSlideShowsByGroup('mygroup', $starting_offset, $limit);

// Iterate over the slide shows
foreach ($ss_user as $slideshow) {
   print "Slide Show Title: {$slideshow->getTitle}<br/>\n";
}

ZendServiceSlideShare Caching policies

By default, ZendService\SlideShare\SlideShare will cache any request against the web service automatically to the filesystem (default path /tmp) for 12 hours. If you desire to change this behavior, you must provide your own ZendCacheCache object using the setCacheObject() method as shown:

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$frontendOptions = array(
                        'lifetime' => 7200,
                        'automatic_serialization' => true);
$backendOptions  = array(
                        'cache_dir' => '/webtmp/');

$cache = Zend\Cache\Cache::factory('Core',
                             'File',
                             $frontendOptions,
                             $backendOptions);

$ss = new ZendService\SlideShare\SlideShare('APIKEY',
                                  'SHAREDSECRET',
                                  'USERNAME',
                                  'PASSWORD');
$ss->setCacheObject($cache);

$ss_user = $ss->getSlideShowsByUser('username', $starting_offset, $limit);

Changing the behavior of the HTTP Client

If for whatever reason you would like to change the behavior of the HTTP client when making the web service request, you can do so by creating your own instance of the Zend\Http\Client object (see ZendHttp). This is useful for instance when it is desirable to set the timeout for the connection to something other then default as shown:

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$client = new Zend\Http\Client();
$client->setConfig(array('timeout' => 5));

$ss = new ZendService\SlideShare\SlideShare('APIKEY',
                                  'SHAREDSECRET',
                                  'USERNAME',
                                  'PASSWORD');
$ss->setHttpClient($client);
$ss_user = $ss->getSlideShowsByUser('username', $starting_offset, $limit);
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