Struct Setting 

pub struct Setting {

    pub name: String,
    pub setting: String,
    pub unit: Option<String>,
    pub category: String,
    pub short_desc: String,
    pub extra_desc: Option<String>,
    pub context: String,
    pub vartype: String,
    pub source: String,
    pub min_val: Option<String>,
    pub max_val: Option<String>,
    pub enumvals: Option<Vec<String>>,
    pub boot_val: Option<String>,
    pub reset_val: Option<String>,
    pub sourcefile: Option<String>,
    pub sourceline: Option<i32>,
    pub pending_restart: bool,
}

A setting as defined in pg_catalog.pg_settings.

This is fairly stringly-typed and mostly informational. For getting and setting values, Parameter and Value may be more convenient.

Note that this does not work on PostgreSQL 9.4 and earlier because the pending_restart column does not exist. PostgreSQL 9.4 has long been obsolete so a workaround is not provided.

See the documentation for pg_settings.

Fields

name: String

setting: String

unit: Option<String>

category: String

short_desc: String

extra_desc: Option<String>

context: String

vartype: String

source: String

min_val: Option<String>

max_val: Option<String>

enumvals: Option<Vec<String>>

boot_val: Option<String>

reset_val: Option<String>

sourcefile: Option<String>

sourceline: Option<i32>

pending_restart: bool

Implementations

impl Setting

pub async fn list(pool: &PgPool) -> Result<Vec<Self>, Error>

pub async fn get<N: AsRef<str>>( name: N, pool: &PgPool, ) -> Result<Option<Self>, Error>

Trait Implementations

impl Clone for Setting

fn clone(&self) -> Setting

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Setting

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

Formats the value using the given formatter.

impl<'a> From<&'a Setting> for Parameter<'a>

fn from(setting: &'a Setting) -> Self

Converts to this type from the input type.

impl<'a, R: Row> FromRow<'a, R> for Setting

where &'a str: ColumnIndex<R>, String: Decode<'a, R::Database> + Type<R::Database>, Option<String>: Decode<'a, R::Database> + Type<R::Database>, Option<Vec<String>>: Decode<'a, R::Database> + Type<R::Database>, Option<i32>: Decode<'a, R::Database> + Type<R::Database>, bool: Decode<'a, R::Database> + Type<R::Database>,

fn from_row(__row: &'a R) -> Result<Self>

impl TryFrom<&Setting> for Value

type Error = String

The type returned in the event of a conversion error.

fn try_from(setting: &Setting) -> Result<Self, Self::Error>

Performs the conversion.