Struct FilterCondition 

pub struct FilterCondition {
    pub field: String,
    pub operator: FilterOperator,
    pub value: FilterValue,
    pub logical: FilterLogical,
    pub column_type: Option<String>,
}

A single filter condition

Fields

field: String

operator: FilterOperator

value: FilterValue

logical: FilterLogical

column_type: Option<String>

Implementations

impl FilterCondition

pub fn new(field: String, operator: FilterOperator, value: FilterValue) -> Self

Create a new filter condition

pub fn needs_value_cast(&self) -> bool

True when this condition binds a value it compares with =, <, IN, BETWEEN and the like, yet carries no cast for it. Such a value is bound as text, and PostgreSQL has no implicit comparison between text and a boolean, number, uuid, date or timestamp column, so the caller must find the column’s type before the query can run. Pattern operators (LIKE, contain, …) and null checks are text matches or bind nothing, so they never need one.

pub fn needs_type_qualification(&self) -> bool

Whether this condition’s cast names a user-defined type without its schema (an enum such as task_status from a generated hint). Such a name only resolves when the type’s schema is on the search path, which a tenant database need not have; the caller qualifies it from the catalog before the query runs.

pub fn with_logical(self, logical: FilterLogical) -> Self

Set the logical operator

pub fn with_column_type(self, column_type: String) -> Self

Set the column type for casting (e.g., “user_status”)

pub fn build_sql(&self, param_idx: &mut usize) -> String

Build SQL WHERE clause for this condition (with logical prefix)

pub fn get_params(&self) -> Vec<String>

Get the parameter values for binding

Trait Implementations

impl Clone for FilterCondition

fn clone(&self) -> Self

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl Debug for FilterCondition

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

Formats the value using the given formatter.