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adding api to query vote objects by id

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This commit is contained in:
Daniel Larimer 2015-08-13 09:22:05 -04:00
parent 4e1f38d8d9
commit 80602a1f7b
5 changed files with 58 additions and 0 deletions
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38
libraries/app/api.cpp
View file

@ -417,6 +417,44 @@ namespace graphene { namespace app {
return *itr;
return {};
}
vector<variant> database_api::lookup_vote_ids( const vector<vote_id_type>& votes )const
{
FC_ASSERT( votes.size() < 100, "Only 100 votes can be queried at a time" );
const auto& witness_idx = _db.get_index_type<witness_index>().indices().get<by_vote_id>();
const auto& committee_idx = _db.get_index_type<committee_member_index>().indices().get<by_vote_id>();
vector<variant> result;
result.reserve( votes.size() );
for( auto id : votes )
{
switch( id.type() )
{
case vote_id_type::committee:
{
auto itr = committee_idx.find( id );
if( itr != committee_idx.end() )
result.emplace_back( variant( *itr ) );
else
result.emplace_back( variant() );
break;
}
case vote_id_type::witness:
{
auto itr = witness_idx.find( id );
if( itr != witness_idx.end() )
result.emplace_back( variant( *itr ) );
else
result.emplace_back( variant() );
break;
}
case vote_id_type::worker:
break;
case vote_id_type::VOTE_TYPE_COUNT: break; // supress unused enum value warnings
}
}
return result;
}
uint64_t database_api::get_witness_count()const
{

11
libraries/app/include/graphene/app/api.hpp
View file

@ -222,6 +222,16 @@ namespace graphene { namespace app {
*/
fc::optional<witness_object> get_witness_by_account(account_id_type account)const;
/**
* @brief Given a set of votes, return the objects they are voting for.
*
* This will be a mixture of committee_member_object, witness_objects, and worker_objects
*
* The results will be in the same order as the votes. Null will be returned for
* any vote ids that are not found.
*/
vector<variant> lookup_vote_ids( const vector<vote_id_type>& votes )const;
/**
* @brief Get the total number of witnesses registered with the blockchain
*/
@ -558,6 +568,7 @@ FC_API(graphene::app::database_api,
(get_witnesses)
(get_committee_members)
(get_witness_by_account)
(lookup_vote_ids)
(get_witness_count)
(lookup_witness_accounts)
(lookup_committee_member_accounts)

4
libraries/chain/include/graphene/chain/committee_member_object.hpp
View file

@ -48,6 +48,7 @@ namespace graphene { namespace chain {
};
struct by_account;
struct by_vote_id;
using committee_member_multi_index_type = multi_index_container<
committee_member_object,
indexed_by<
@ -56,6 +57,9 @@ namespace graphene { namespace chain {
>,
hashed_unique< tag<by_account>,
member<committee_member_object, account_id_type, &committee_member_object::committee_member_account>
>,
hashed_unique< tag<by_vote_id>,
member<committee_member_object, vote_id_type, &committee_member_object::vote_id>
>
>
>;

1
libraries/chain/include/graphene/chain/protocol/vote.hpp
View file

@ -52,6 +52,7 @@ struct vote_id_type
/// Lower 8 bits are type; upper 24 bits are instance
uint32_t content;
friend size_t hash_value( vote_id_type v ) { return std::hash<uint32_t>()(v.content); }
enum vote_type
{
committee,

4
libraries/chain/include/graphene/chain/witness_object.hpp
View file

@ -43,6 +43,7 @@ namespace graphene { namespace chain {
};
struct by_account;
struct by_vote_id;
using witness_multi_index_type = multi_index_container<
witness_object,
indexed_by<
@ -51,6 +52,9 @@ namespace graphene { namespace chain {
>,
hashed_unique< tag<by_account>,
member<witness_object, account_id_type, &witness_object::witness_account>
>,
hashed_unique< tag<by_vote_id>,
member<witness_object, vote_id_type, &witness_object::vote_id>
>
>
>;