Filtering for SM

[ayaleloehr]

Marc and I drew this up on the board yesterday and he will provide more details on how filtering will work in the API documentation he is writing in #87

[saneshark]

?filter[[some_attribute][some_operation]]=some_value&filter[[same_attribute][some_other_operation]]=some_other_value

Where some_operation and some_other_operation is one of

• eq
• not_eq
• gteq
• lteq

For example a date range could be:

http://api.vets.gov/v0/health/messaging/folders/0/messages?filter[[date_sent][gteq]]=2015-01-01&filter[[date_sent][lteq]]=2015-12-31

[saneshark]

We can add additional operations for regex matches, but those will need special sanitization so are currently not supported.

We could also look at implementing eq_any which would be OR operations, but that just increases complexity. Prefer to have all operations that are changed be an implicit AND

[ayaleloehr]

still to implement matches for subject line and from.

first to push up a PR for filtering. has to fix submodule problem.