Enum ConflictMode 

pub enum ConflictMode {
    Error,
    Merge,
    Version,
}

v0.7.0 fix campaign R1-M3 (#690) — substrate-side on_conflict policy for insert_with_conflict.

Before this enum existed, every call into insert silently merged on (title, namespace) collision. The G6 work in v0.6.3.1 closed the silent-merge gap at the MCP / HTTP handler layer (see mcp::tools::store and handlers::http::create_link), but substrate-internal writers — storage::reflect, the curator consolidation surface, and the federation sync_push link loop — kept calling insert directly and inheriting the silent-merge behaviour. R1-M3 surfaces the same three policies the handler layer already exposes on a typed enum so substrate callers can opt into the right semantics explicitly.

Policies:

• ConflictMode::Error — refuse the write when a (title, namespace) row already exists, returning a typed error. Used by storage::reflect so a duplicate reflection cannot silently replace an earlier one.

• ConflictMode::Merge — current silent-merge behaviour (the v0.6.3 default). insert continues to call into the merge path verbatim for backward compatibility.

• ConflictMode::Version — append a monotonic suffix to the title until a free (title, namespace) slot is found, then insert a new row. Mirrors the on_conflict='version' handler policy.

Variants

Error

Refuse the write with a typed (title, namespace) collision error. The existing row is left untouched.

Merge

Silently merge on (title, namespace) collision (the legacy v0.6.3 substrate default). The existing row’s content / tags / metadata.agent_id / reflection_depth are merged with the incoming row per the SQL in insert.

Version

Append (2), (3), … to the title until a free slot is found, then insert a new row. Both old and new rows persist.

Trait Implementations

impl Clone for ConflictMode

fn clone(&self) -> ConflictMode

Returns a duplicate of the value.

fn clone_from(&mut self, source: &Self)

Performs copy-assignment from source.

impl Copy for ConflictMode

impl Debug for ConflictMode

fn fmt(&self, f: &mut Formatter<'_>) -> Result

Formats the value using the given formatter.

impl Eq for ConflictMode

impl PartialEq for ConflictMode

fn eq(&self, other: &ConflictMode) -> bool

Tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

Tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl StructuralPartialEq for ConflictMode