Struct QueryConfig 

pub struct QueryConfig<T = ()>
where
    T: Default,
{
    pub added: Option<TemplateSpec<T>>,
    pub updated: Option<TemplateSpec<T>>,
    pub deleted: Option<TemplateSpec<T>>,
}

Configuration for query-specific template-based output.

Defines different template specifications for each operation type (added, updated, deleted). Each operation type can have its own formatting template.

Type Parameter

• T - Optional extension type for reaction-specific fields. Use () (default) if no extensions needed.

Example

use drasi_lib::reactions::common::{QueryConfig, TemplateSpec};

let config: QueryConfig = QueryConfig {
    added: Some(TemplateSpec {
        template: "[ADD] {{after.id}}".to_string(),
        extension: (),
    }),
    updated: Some(TemplateSpec {
        template: "[UPD] {{after.id}}".to_string(),
        extension: (),
    }),
    deleted: Some(TemplateSpec {
        template: "[DEL] {{before.id}}".to_string(),
        extension: (),
    }),
};

Example (Omitting fields with Default)

use drasi_lib::reactions::common::{QueryConfig, TemplateSpec};

// Only specify the added operation, others will be None
let config: QueryConfig = QueryConfig {
    added: Some(TemplateSpec::new("[ADD] {{after.id}}")),
    ..Default::default()
};

Fields

added: Option<TemplateSpec<T>>

Template specification for ADD operations (new rows in query results).

updated: Option<TemplateSpec<T>>

Template specification for UPDATE operations (modified rows in query results).

deleted: Option<TemplateSpec<T>>

Template specification for DELETE operations (removed rows from query results).

Trait Implementations

impl<T> Clone for QueryConfig<T>

where T: Clone + Default,

fn clone(&self) -> QueryConfig<T>

Returns a duplicate of the value.

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

Performs copy-assignment from source.

impl<T> Debug for QueryConfig<T>

where T: Debug + Default,

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

Formats the value using the given formatter.

impl<T> Default for QueryConfig<T>

where T: Default,

fn default() -> QueryConfig<T>

Returns the “default value” for a type.

impl<'de, T> Deserialize<'de> for QueryConfig<T>

where T: Default + Deserialize<'de>,

fn deserialize<__D>( __deserializer: __D, ) -> Result<QueryConfig<T>, <__D as Deserializer<'de>>::Error>

where __D: Deserializer<'de>,

Deserialize this value from the given Serde deserializer.

impl<T> PartialEq for QueryConfig<T>

where T: PartialEq + Default,

fn eq(&self, other: &QueryConfig<T>) -> 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<T> Serialize for QueryConfig<T>

where T: Default + Serialize,

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

where __S: Serializer,

Serialize this value into the given Serde serializer.

impl<T> StructuralPartialEq for QueryConfig<T>

where T: Default,