## Overview
Blog templates (T812) should be able to access different collection queries:
* Fetch latest posts
* Fetch posts in chronological order
* Fetch posts with a certain tag (requires T809)
* Fetch a single post
We might also support these (needs more thought):
* Fetch posts according to blog's Display Format
## Implementation
When rendering a user-generated blog template, provide template functions for each of the above queries.