FeedAttachment

Supported Calls

create(), delete(), describeSObjects(), idEnabled(), query(), retrieve(), update(), upsert()

Special Access Rules

• You can read, create, update, or delete a FeedAttachment only if you have the corresponding access to the associated FeedItem.
• Inline images aren’t creatable, updatable, or deletable through SOAP API.

Fields

Usage

• This Apex example shows how to add an attachment to a Lead using API version 36.0 and later. First, post a feed item.
  Then insert the attachment.
• You can create only one link attachment (FeedAttachment of type Link) per feed item.
• If the feed item type is one of the following, you can add content or link feed attachments to a FeedItem.
  • AdvancedTextPost
  • TextPost
  • ContentPost
  • LinkPost
  • QuestionPost
• When a FeedAttachment is added or removed from a feed item, Salesforce updates the type of the feed item to its most appropriate value, as follows.
  • If all content feed attachments are removed from a feed item of type ContentPost, the type of this feed item is updated to TextPost.
  • Conversely, if a content feed attachment is added to a feed item of type TextPost, the type of this feed item is updated to ContentPost.
  • If all link feed attachments are removed from a feed item of type LinkPost, the type of this feed item is updated to TextPost.
  • Conversely, if a link feed attachment is added to a feed item of type TextPost, the type of this feed item is updated to LinkPost.
  • The type of all other feed items, such as QuestionPost or AdvancedTextPost feed items, doesn’t change when any feed attachments are added or removed.
  • If a content feed attachment is added to a feed item of type LinkPost, the feed item type is updated to ContentPost.
  • If all content attachments are removed from a feed item of type ContentPost, but there's also a link attachment, the feed item type is updated to LinkPost.
• Users without administrator privileges can’t retrieve a FeedAttachment by its ID in a SOQL query. They can retrieve attachments by specifying the associated FeedEntityId, as follows:
• Alternatively, retrieve attachments by using a SOQL query on FeedItem with a subquery on the FeedAttachments child relationship, as follows.
• FeedAttachment is not a triggerable object. You can access feed attachments in FeedItem update triggers by retrieving them through a SOQL query. For a trigger example, and to learn about trigger considerations for FeedAttachment, see Triggers for Chatter Objects in the Apex Developer Guide.