Call to a member function getData() using facebook marketing api - php

Question

I am currently testing the facebook marketing API to use it to get data from campaigns for a custom dashboard.
I am able to get data out from the ad account, but for some, for me, unknown reason a am getting Call to a member function getData() on a non-object while getting data. It will output some data before exiting.
I am testing with this
if($_SESSION["facebook_access_token"]) {
Api::init(
'XXXXXXXXXX',
'XXXXXXXXXXXXXXXXX',
$_SESSION["facebook_access_token"]
);
$account = new AdAccount('act_XXXXXXXXXXXXX');
$campaigns = $account->getCampaigns(array(
CampaignFields::NAME,
CampaignFields::OBJECTIVE,
CampaignFields::EFFECTIVE_STATUS,
CampaignFields::CONFIGURED_STATUS
), array(
CampaignFields::EFFECTIVE_STATUS => array(
ArchivableCrudObjectEffectiveStatuses::ACTIVE
),
));
foreach($campaigns as $campaignset) {
$cid = $campaignset->getData()['id'];
$campaign = new Campaign($cid);
$insights = $campaign->getInsights(array(
InsightsFields::CAMPAIGN_NAME,
InsightsFields::ADSET_NAME
));
var_dump($insights->current()->getData());
}
}
It will output this
array (size=48)
'account_id' => null
'account_name' => null
'action_values' => null
'actions' => null
'actions_per_impression' => null
'ad_id' => null
'ad_name' => null
'adset_id' => null
'adset_name' => null
'call_to_action_clicks' => null
'campaign_id' => null
'campaign_name' => string 'Svendborg - Mødsparnord – kopi' (length=33)
'cost_per_action_type' => null
'cost_per_total_action' => null
'cost_per_unique_click' => null
'cost_per_inline_link_click' => null
'cost_per_inline_post_engagement' => null
'cpm' => null
'cpp' => null
'ctr' => null
'date_start' => string '2015-11-05' (length=10)
'date_stop' => string '2015-12-07' (length=10)
'frequency' => null
'impressions' => null
'inline_link_clicks' => null
'inline_post_engagement' => null
'product_id' => null
'reach' => null
'relevance_score' => null
'social_clicks' => null
'social_impressions' => null
'social_reach' => null
'spend' => null
'total_action_value' => null
'total_actions' => null
'total_unique_actions' => null
'unique_clicks' => null
'unique_ctr' => null
'unique_social_clicks' => null
'video_avg_pct_watched_actions' => null
'video_avg_sec_watched_actions' => null
'video_complete_watched_actions' => null
'video_p100_watched_actions' => null
'video_p25_watched_actions' => null
'video_p50_watched_actions' => null
'video_p75_watched_actions' => null
'video_p95_watched_actions' => null
'website_ctr' => null
and some other campaigns, but it will always stop with the above mentioned error at the same spot every time. But I cannot see what's wrong.

Answer 1

This is because one of our campaign does not have insights data on your query. You could handle that as exception in the loop.
However, I want to promote a best practice for this. In your use case, you should really use the level parameter from the ad account, unless you have hundreds campaigns under that account.
$adAccount = new AdAccount('<AD_CAMPAIGN_ID>');
$params = array(
'level' => AdsInsightsLevelValues::Campaign,
'date_preset' => InsightsPresets::LAST_7_DAYS,
);
$insights = $adAccount->getInsights(null, $params);
print_r($insights);
This way you don't even need a for loop.
And we also have a tool to guide you generate code in the Getting Started session in https://developers.facebook.com/apps/[app_id]/marketing-api/
Basically you can pick metrics and the wizard will generate a working code for you. (It is only generating Java code for now, but code pattern is the same)