FQL事件pic_cover返回null [英] FQL event pic_cover returns null
问题描述
这是事件: https://www.facebook.com/events/545127275518406/
这是我的FQL查询: SELECT pic_cover FROM event WHERE eid = 545127275518406
该查询返回:
{
data:[
{
pic_cover:null
}
]
}
另一个公共事件( https://www.facebook.com/events/133752506800219/ )使用相同的查询(取代 eid )返回:
{
data:[
{
pic_cover:{
cover_id:431180503630072,
source:https://sphotos-a.xx.fbcdn.net/hphotos-ash4/299824_43118050363 0072_82863704_n.jpg,
offset_y:36
}
}
]
}
如果第一个事件有封面图像,为什么返回null?
请求用户 user_photos
的许可部分解决了此问题。我说部分原因是有些照片没有退回。请记住,pic_cover和pic_big是两种不同的东西,
I am trying to fetch the cover picture for a public event on Facebook, but the pic_cover field returns null.
Here is the event: https://www.facebook.com/events/545127275518406/
Here is my FQL query: SELECT pic_cover FROM event WHERE eid=545127275518406
That query returns:
{
"data": [
{
"pic_cover": null
}
]
}
Another public event (https://www.facebook.com/events/133752506800219/) using the same query (with substituted eid) returns:
{
"data": [
{
"pic_cover": {
"cover_id": 431180503630072,
"source": "https://sphotos-a.xx.fbcdn.net/hphotos-ash4/299824_431180503630072_82863704_n.jpg",
"offset_y": 36
}
}
]
}
Why does the first event return null if it does have a cover image?
Asking the user the permission for user_photos
partially solves this issue. I say partially because some photoes are not returned. Bear in mind that pic_cover and pic_big are two different things
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