Unable to get tweet images

I returned to some code today that working fine last fall but now doesn't seem to get the images from a tweet--seems likely to be the same problem. I think it's a change in the Twitter API, not an issue with Social Content. See this:

https://dev.twitter.com/overview/api/upcoming-changes-to-tweets

Here's what I've learned (keep in mind thay I know virtually nothing about the twitter API beyond what I needed to get my code working):

• Apparently there are now "extended" tweets and "classic" tweets.
• Tweets are fetched by default in "compatability mode," which truncates them if they are extended.
• To get complete info for extended tweets, you have to add "tweet_mode=extended" to the query.
• When you fetch tweets in extended mode, the tweet is returned as 'full_text', not 'text'. There's a new field called 'display_text_range' which is supposed to be useful but I'm ignoring it.
• Another change between last fall and now is that media in a retweet does not show up in the 'entities' field in the main record. It only shows up in the 'entities' field of 'retweeted_status'.

First step to get things working is to add the "tweet_mode=extended" flag, which can be done with a patch to social_content_twitter.class.inc:

  protected function getRowsAccount($settings, $global_settings, $last_id) {
    $params = array(
      'screen_name' => $settings['account'],
      'exclude_replies' => TRUE,
      'count' => $settings['limit'],
      'tweet_mode' => 'extended',	// <<<<< ADD THIS
    );

Next thing is deal with the 'full_text' vs. 'text' issue and the retweeted media. Instead of patching, I made a subclass of SocialContentTwitter, though hopefully these changes can be rolled into the module code.

<?php

// File MYMOD.social_content_twitter_override.inc

class MymodSocialContentTwitter extends SocialContentTwitter {
  public function prepareRow($row) {
    $mappings = $this->getFieldMappings();
    if (isset($row->full_text)) {
      // Theoretically should respect 'display_text_range', which indicates [start, end]
      // of full_text to display. But that will throw off the mappings in 'entities',
      // since they seem to refer to 'full_text' as a whole (as of 2017-04-14).
      $row->text = $row->full_text;
    }
    if (isset($row->retweeted_status->full_text)) {
      $row->retweeted_status->text = $row->retweeted_status->full_text;
    }
    if (parent::prepareRow($row) === FALSE) {
      return FALSE;
    }
    // Get media from retweet:
    // Duplicate code in parent (social_content_twitter.class.inc) that gets first media
    // item from $row->entities, but apply it to $row->retweeted_status->entities.
    if (isset($mappings['media']) && isset($row->retweeted_status) && !isset($row->media)) {
      if (isset($row->retweeted_status->entities->media)) {
        foreach ($row->retweeted_status->entities->media as $item) {
          if (isset($item->media_url)) {
            $picture = $this->saveExternalFile($item->media_url, $mappings['media']);
            $row->media = !empty($picture) ? $picture : NULL;
            if ($picture) {
              break;
            }
          }
        }
      }
    }
  }
}

Need this hook to point to the override class:

function MYMOD_social_content_class_info_alter(&$classes) {
  if (isset($classes['twitter'])) {
    $classes['twitter'] = 'MymodSocialContentTwitter';
  }
}

Finally, need to add a line to the module .info file and rebuild the class registry.

files[]=MYMOD.social_content_class_override.inc

Many thanks for Social Content--very nice, flexible design.

Thanks arezeeman,
Where do you add the hook

function MYMOD_social_content_class_info_alter(&$classes) {
  if (isset($classes['twitter'])) {
    $classes['twitter'] = 'MymodSocialContentTwitter';
  }
}

I put it in a custom module that I use for site-specific code that I don't want to put in the theme. You could also put it into your theme's template.php file. You might be able to load the subclass in your theme, too--I don't see why not, but I've never tried it. Or you could make a little custom module--let's call it lcm.

File lcm.info:

name = "Little Custom Module"
description = "Fix for Social Content"
core = 7.x
package = Custom
project = "lcm"
files[]=lcm.social_content_class_override.inc

File lcm.module:

<?php

function lcm_social_content_class_info_alter(&$classes) {
  if (isset($classes['twitter'])) {
    $classes['twitter'] = 'LcmSocialContentTwitter';
  }
}

File lcm.social_content_class_override.inc:

<?php

class LcmSocialContentTwitter extends SocialContentTwitter {
  public function prepareRow($row) {
// etc... (see code in earlier post)
  }
}

Once the files are in place, in the directory sites/all/modules/custom/lcm, you'd have to enable the module. That's the code I've added to my custom module, but I haven't tested that it as a little stand-alone module, so it's possible I've missed something.

Thank you again, especially for your chrystal clear explaination ;)

It works like a charm !

I still have the issue. When I'm enabling your module ans when I go to the configuration page of Social Content it display a white page.
What am I doing wrong?

Thanks

I prepared a patch based on this code, thank you arezeeman.

Merged to dev, thanks!