Struct Select

pub struct Select {
    pub from_table: FromTable,
    pub filter: Option<Expr>,
    pub group_by: Option<Vec<Expr>>,
    pub having: Option<Expr>,
    pub projection: Option<Vec<ExprRename>>,
    pub order_by: Option<Vec<Order>>,
    pub range: Option<Range>,
}

Fields

from_table: FromTable

filter: Option<Expr>

group_by: Option<Vec<Expr>>

having: Option<Expr>

projection: Option<Vec<ExprRename>>

order_by: Option<Vec<Order>>

range: Option<Range>

Implementations

impl Select

pub fn set_page(&mut self, page: i64, page_size: i64)

pub fn get_page(&self) -> Option<i64>

pub fn get_page_size(&self) -> Option<i64>

pub fn add_simple_filter( &mut self, column: ColumnName, operator: Operator, search_key: &str, )

pub fn into_sql_select( &self, table_lookup: Option<&TableLookup>, ) -> Result<Select, Error>

pub fn into_sql_query( &self, table_lookup: Option<&TableLookup>, ) -> Result<Query, Error>

convert the restq ast representation into sql-ast ast representation

pub fn into_sql_statement( &self, table_lookup: Option<&TableLookup>, ) -> Result<Statement, Error>

convert this ast into a sql-ast Statement representation

Examples found in repository

examples/simple.rs (line 9)

fn main() {
    let input = "person{person_id,name,updated}?age=lt.42&(student=eq.true|gender=eq.'M')&group_by=sum(age),grade,gender&having=min(age)=gt.42&order_by=age.desc,height.asc&page=20&page_size=100";
    let input_chars = to_chars(input);
    let ret = select().parse(&input_chars).expect("must be parsed");
    println!("ret: {:#?}", ret);
    println!("ret sql: {}", ret.to_string());
    let sql = ret.into_sql_statement(None).unwrap();
    println!("sql: {}", sql.to_string());
}

Trait Implementations

impl Clone for Select

fn clone(&self) -> Select

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for Select

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

Formats the value using the given formatter.

impl Default for Select

fn default() -> Select

Returns the “default value” for a type.

impl<'de> Deserialize<'de> for Select

fn deserialize<__D>(__deserializer: __D) -> Result<Self, __D::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl Display for Select

This converts the restq ast into a string for use in the url

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

Formats the value using the given formatter.

impl Into<Statement> for Select

fn into(self) -> Statement

Converts this type into the (usually inferred) input type.

impl PartialEq for Select

fn eq(&self, other: &Select) -> 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 Serialize for Select

fn serialize<__S>(&self, __serializer: __S) -> Result<__S::Ok, __S::Error>

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl StructuralPartialEq for Select