fetch all messages and messages by owner

[leviathanbeak]

WIP

solves #521

DONE:

• I have added all_owners_and_message_ids() to the Database
• to the Schema I have added MessageQuery that includes messages() and messages_by_owner()
• added a test but couldn't complete it since fuel-client needs to expose those APIs

TODO

• expose messages() and messages_by_owner() APIs within fuel-client
• finish the test in fuel-tests/tests/messages

[leviathanbeak]

wrote the test and exposed the respective APIs.

thanks to @bvrooman & @Voxelot for fixing and cleaning up the code.

[bvrooman]

This could just be me, but when I run the new test under fuel-tests/tests/messages.rs, I get the following message:

thread 'messages::messages' panicked at 'get_validators_da_height database corruption, err:Codec', fuel-core/src/database.rs:412:17
...

However, this message isn't exactly an error: the test execution still runs and the the test still passes.

It appears to be something to do with using bincode to deserialize the metadata for VALIDATORS_DA_HEIGHT_KEY:

// fuel-core/src/database/metadata.rs
self.insert(VALIDATORS_DA_HEIGHT_KEY, METADATA, 0)?;
..

// fuel-core/src/database.rs
// self.get calls bincode::deserialize
match self.get(metadata::VALIDATORS_DA_HEIGHT_KEY, METADATA) {
    ..
    Err(err) => {
        panic!(
            "get_validators_da_height database corruption, err:{:?}",
            err
        );
    }
}

Is anyone else seeing this?

[Voxelot]

Yeah this is a bug in the relayer code, i disabled the relayer by default in @ControlCplusControlV's branch

[Voxelot]

I'm thinking we could consolidate these two pagination endpoints by providing an optional MessageFilter object similar to what the coins API uses. I'll make a PR to this PR with the suggested changes.

[Voxelot]

here are my proposed changes to consolidate the two interfaces. When no owner is passed, it behaves normally as if iterating over the entire set of messages. When an owner is supplied to the API, the messages will be filtered based on the owner.

#540