Struct PreupdateHookResult

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pub struct PreupdateHookResult<'a> {
    pub operation: SqliteOperation,
    pub database: &'a str,
    pub table: &'a str,
    /* private fields */
}
Available on crate feature _sqlite only.

Fieldsยง

ยงoperation: SqliteOperationยงdatabase: &'a strยงtable: &'a str

Implementationsยง

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impl<'a> PreupdateHookResult<'a>

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pub fn get_column_count(&self) -> i32

Gets the amount of columns in the row being inserted, deleted, or updated.

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pub fn get_query_depth(&self) -> i32

Gets the depth of the query that triggered the preupdate hook. Returns 0 if the preupdate callback was invoked as a result of a direct insert, update, or delete operation; 1 for inserts, updates, or deletes invoked by top-level triggers; 2 for changes resulting from triggers called by top-level triggers; and so forth.

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pub fn get_old_row_id(&self) -> Result<i64, PreupdateError>

Gets the row id of the row being updated/deleted. Returns an error if called from an insert operation.

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pub fn get_new_row_id(&self) -> Result<i64, PreupdateError>

Gets the row id of the row being inserted/updated. Returns an error if called from a delete operation.

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pub fn get_old_column_value( &self, i: i32, ) -> Result<SqliteValueRef<'a>, PreupdateError>

Gets the value of the row being updated/deleted at the specified index. Returns an error if called from an insert operation or the index is out of bounds.

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pub fn get_new_column_value( &self, i: i32, ) -> Result<SqliteValueRef<'a>, PreupdateError>

Gets the value of the row being inserted/updated at the specified index. Returns an error if called from a delete operation or the index is out of bounds.

Trait Implementationsยง

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impl<'a> Debug for PreupdateHookResult<'a>

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

Formats the value using the given formatter. Read more

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