Struct imessage_database::util::query_context::QueryContext

pub struct QueryContext {
    pub start: Option<i64>,
    pub end: Option<i64>,
}

Represents filter configurations for a SQL query.

Fields

start: Option<i64>

The start date filter. Only messages sent on or after this date will be included.

end: Option<i64>

The end date filter. Only messages sent before this date will be included.

Implementations

impl QueryContext

pub fn set_start(&mut self, start: &str) -> Result<(), QueryContextError>

Generate a QueryContext with a start date

Example:

use imessage_database::util::query_context::QueryContext;

let mut context = QueryContext::default();
context.set_start("2023-01-01");

pub fn set_end(&mut self, end: &str) -> Result<(), QueryContextError>

Generate a QueryContext with an end date

Example:

use imessage_database::util::query_context::QueryContext;

let mut context = QueryContext::default();
context.set_end("2023-01-01");

pub fn has_filters(&self) -> bool

Determine if the current QueryContext has any filters present

Example:

use imessage_database::util::query_context::QueryContext;

let mut context = QueryContext::default();
assert!(!context.has_filters());
context.set_start("2023-01-01");
assert!(context.has_filters());

pub fn generate_filter_statement(&self) -> String

Generate the SQL WHERE clause described by this QueryContext

Example:

use imessage_database::util::query_context::QueryContext;

let mut context = QueryContext::default();
context.set_start("2023-01-01");
let filters = context.generate_filter_statement();

Trait Implementations

impl Debug for QueryContext

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

Formats the value using the given formatter.

impl Default for QueryContext

fn default() -> QueryContext

Returns the “default value” for a type.

impl PartialEq for QueryContext

fn eq(&self, other: &QueryContext) -> bool

This method tests for self and other values to be equal, and is used by ==.

fn ne(&self, other: &Rhs) -> bool

This method tests for !=. The default implementation is almost always sufficient, and should not be overridden without very good reason.

impl Eq for QueryContext

impl StructuralEq for QueryContext

impl StructuralPartialEq for QueryContext