Struct PostgresDatabase 

pub struct PostgresDatabase { /* private fields */ }

Implementations

impl PostgresDatabase

pub async fn new( database_url: &str, config: DMSCDatabaseConfig, ) -> Result<Self, DMSCError>

impl PostgresDatabase

pub fn from_connection_string( conn_string: &str, max_connections: u32, ) -> Result<Self, PyErr>

pub fn execute_sync(&self, sql: &str) -> Result<u64, DMSCError>

pub fn query_sync(&self, sql: &str) -> Result<DMSCDBResult, DMSCError>

pub fn ping_sync(&self) -> Result<bool, DMSCError>

Trait Implementations

impl Clone for PostgresDatabase

fn clone(&self) -> PostgresDatabase

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl DMSCDatabase for PostgresDatabase

fn database_type(&self) -> DatabaseType

Returns the type of database this instance connects to.

fn execute<'life0, 'life1, 'async_trait>( &'life0 self, sql: &'life1 str, ) -> Pin<Box<dyn Future<Output = DMSCResult<u64>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Executes a SQL statement without returning results.

fn query<'life0, 'life1, 'async_trait>( &'life0 self, sql: &'life1 str, ) -> Pin<Box<dyn Future<Output = DMSCResult<DMSCDBResult>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Executes a SQL query and returns all matching rows.

fn query_one<'life0, 'life1, 'async_trait>( &'life0 self, sql: &'life1 str, ) -> Pin<Box<dyn Future<Output = DMSCResult<Option<DMSCDBRow>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait,

Executes a SQL query and returns at most one row.

fn ping<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = DMSCResult<bool>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Checks if the database connection is alive.

fn is_connected(&self) -> bool

Checks if the database connection is currently connected.

fn close<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = DMSCResult<()>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Closes the database connection.

fn batch_execute<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, sql: &'life1 str, params: &'life2 [Vec<Value>], ) -> Pin<Box<dyn Future<Output = DMSCResult<Vec<u64>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Executes the same SQL statement multiple times with different parameters.

fn batch_query<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, sql: &'life1 str, params: &'life2 [Vec<Value>], ) -> Pin<Box<dyn Future<Output = DMSCResult<Vec<DMSCDBResult>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Executes the same query multiple times with different parameters.

fn execute_with_params<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, sql: &'life1 str, params: &'life2 [Value], ) -> Pin<Box<dyn Future<Output = DMSCResult<u64>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Executes a SQL statement with parameters.

fn query_with_params<'life0, 'life1, 'life2, 'async_trait>( &'life0 self, sql: &'life1 str, params: &'life2 [Value], ) -> Pin<Box<dyn Future<Output = DMSCResult<DMSCDBResult>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait, 'life1: 'async_trait, 'life2: 'async_trait,

Executes a SQL query with parameters.

fn transaction<'life0, 'async_trait>( &'life0 self, ) -> Pin<Box<dyn Future<Output = DMSCResult<Box<dyn DMSCDatabaseTransaction>>> + Send + 'async_trait>>

where Self: 'async_trait, 'life0: 'async_trait,

Starts a new database transaction.

impl<'py> IntoPyObject<'py> for PostgresDatabase

type Target = PostgresDatabase

The Python output type

type Output = Bound<'py, <PostgresDatabase as IntoPyObject<'py>>::Target>

The smart pointer type to use.

type Error = PyErr

The type returned in the event of a conversion error.

fn into_pyobject( self, py: Python<'py>, ) -> Result<<Self as IntoPyObject<'_>>::Output, <Self as IntoPyObject<'_>>::Error>

Performs the conversion.

impl PyClass for PostgresDatabase

type Frozen = False

Whether the pyclass is frozen.

impl PyClassImpl for PostgresDatabase

const IS_BASETYPE: bool = false

#[pyclass(subclass)]

const IS_SUBCLASS: bool = false

#[pyclass(extends=…)]

const IS_MAPPING: bool = false

#[pyclass(mapping)]

const IS_SEQUENCE: bool = false

#[pyclass(sequence)]

const IS_IMMUTABLE_TYPE: bool = false

#[pyclass(immutable_type)]

const RAW_DOC: &'static CStr = c"\x00"

Docstring for the class provided on the struct or enum.

const DOC: &'static CStr

Fully rendered class doc, including the text_signature if a constructor is defined.

type BaseType = PyAny

Base class

type ThreadChecker = SendablePyClass<PostgresDatabase>

This handles following two situations:

type PyClassMutability = <<PyAny as PyClassBaseType>::PyClassMutability as PyClassMutability>::MutableChild

Immutable or mutable

type Dict = PyClassDummySlot

Specify this class has #[pyclass(dict)] or not.

type WeakRef = PyClassDummySlot

Specify this class has #[pyclass(weakref)] or not.

type BaseNativeType = PyAny

The closest native ancestor. This is PyAny by default, and when you declare #[pyclass(extends=PyDict)], it’s PyDict.

fn items_iter() -> PyClassItemsIter

fn lazy_type_object() -> &'static LazyTypeObject<Self>

fn dict_offset() -> Option<isize>

fn weaklist_offset() -> Option<isize>

impl PyMethods<PostgresDatabase> for PyClassImplCollector<PostgresDatabase>

fn py_methods(self) -> &'static PyClassItems

impl PyTypeInfo for PostgresDatabase

const NAME: &'static str = "PostgresDatabase"

Class name.

const MODULE: Option<&'static str> = ::core::option::Option::None

Module name, if any.

fn type_object_raw(py: Python<'_>) -> *mut PyTypeObject

Returns the PyTypeObject instance for this type.

fn type_object(py: Python<'_>) -> Bound<'_, PyType>

Returns the safe abstraction over the type object.

fn is_type_of(object: &Bound<'_, PyAny>) -> bool

Checks if object is an instance of this type or a subclass of this type.

fn is_exact_type_of(object: &Bound<'_, PyAny>) -> bool

Checks if object is an instance of this type.

impl DerefToPyAny for PostgresDatabase

impl ExtractPyClassWithClone for PostgresDatabase