mirror of
https://github.com/clockworklabs/SpacetimeDB.git
synced 2026-06-27 16:30:35 -04:00
Jason Larabie
346e2b2514
# Description of Changes - Added a query builder for C++ module bindings - Added query-builder table/filter/join types - Added semijoin support with compile-time checks for lookup-table and indexed-field usage - Added support for returning query-builder queries from C++ views - Hooked query-builder metadata into the C++ table/view macros and V10 module-def path - Added test coverage for the new C++ query-builder behavior - Compile tests for pass/fail cases - SQL tests for generated query output - Added a C++ test module for view primary key coverage - **Update:** Switched the core to pass the columns and index-columns metadata with the table source for better client-side codegen to have some shared code between server + client. # API and ABI breaking changes - No intended API or ABI breaking changes - Adds a new public query-builder API to the C++ bindings - C++ views can now return query-builder query types in addition to materialized row results # Expected complexity level and risk 3 - Mostly contained to C++ bindings, but it touches macros, view registration/serialization, and module-def generation, so there are a few places where the pieces need to stay in sync. # Testing I've done end to end testing of I think every type as well as built some tests to confirm the SQL output. - [x] Run the C++ query-builder SQL tests [crates/bindings-cpp/tests/query-builder-compile/run_query_builder_compile_tests.sh] - [x] Smoke test a generated C++ module using query-builder views --------- Signed-off-by: Jason Larabie <jason@clockworklabs.io> Co-authored-by: Ryan <r.ekhoff@clockworklabs.io> Co-authored-by: Zeke Foppa <196249+bfops@users.noreply.github.com>
34 lines
841 B
C++
34 lines
841 B
C++
#include <spacetimedb.h>
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using namespace SpacetimeDB;
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template<typename TRow>
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auto TableFor(const char* table_name) {
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return QueryBuilder{}.table<TRow>(
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table_name,
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query_builder::HasCols<TRow>::get(table_name),
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query_builder::HasIxCols<TRow>::get(table_name));
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}
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struct User {
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uint64_t id;
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};
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SPACETIMEDB_STRUCT(User, id)
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SPACETIMEDB_TABLE(User, user, Public)
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FIELD_PrimaryKey(user, id)
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struct Membership {
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uint64_t id;
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uint64_t user_id;
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};
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SPACETIMEDB_STRUCT(Membership, id, user_id)
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SPACETIMEDB_TABLE(Membership, membership, Public)
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FIELD_PrimaryKey(membership, id)
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FIELD_Index(membership, user_id)
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auto invalid_join = TableFor<User>("user").right_semijoin(
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TableFor<Membership>("membership"),
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[](const auto& users, const auto& memberships) {
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return users.id.eq(1ULL);
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});
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