Struct aragog::query::ComparisonBuilder

pub struct ComparisonBuilder { /* fields omitted */ }

Builder for Comparison

Implementations

impl ComparisonBuilder

pub fn equals_str<T>(self, value: T) -> Comparison where
    T: Display, 

Finalizes the current query item builder with a string equality comparison.

Note

The field to be matched should be a string value as the AQL translation will put it between quotes. This means that if you use this with a numeric the final result will be between quotes.

Example

• String example:

let query_item = Comparison::field("username").equals_str("felix");
let query = Query::new("Users").filter(Filter::new(query_item));
assert_eq!(query.to_aql(), r#"FOR a in Users FILTER a.username == "felix" return a"#);

• Numeric example:

// With the String equality
let query_item = Comparison::field("price").equals_str(10.5);
let query = Query::new("Product").filter(Filter::new(query_item));
assert_eq!(query.to_aql(), r#"FOR a in Product FILTER a.price == "10.5" return a"#);

// With simple equality
let query_item = Comparison::field("price").equals(10.5);
let query = Query::new("Product").filter(Filter::new(query_item));
assert_eq!(query.to_aql(), "FOR a in Product FILTER a.price == 10.5 return a");

pub fn different_than_str<T>(self, value: T) -> Comparison where
    T: Display, 

Finalizes the current query item builder with a string inequality comparison.

Note

The field to be matched should be a string value as the AQL translation will put it between quotes. This means that if you use this with a numeric the final result will be between quotes.

Example

• String example:

let query_item = Comparison::field("username").different_than_str("felix");
let query = Query::new("Users").filter(Filter::new(query_item));
assert_eq!(query.to_aql(), r#"FOR a in Users FILTER a.username != "felix" return a"#);

• Numeric example:

// With the String equality
let query_item = Comparison::field("price").different_than_str(10.5);
let query = Query::new("Product").filter(Filter::new(query_item));
assert_eq!(query.to_aql(), r#"FOR a in Product FILTER a.price != "10.5" return a"#);

// With simple equality
let query_item = Comparison::field("price").different_than(10.5);
let query = Query::new("Product").filter(Filter::new(query_item));
assert_eq!(query.to_aql(), "FOR a in Product FILTER a.price != 10.5 return a");

pub fn matches(self, regular_expression: &str) -> Comparison

Finalizes the current query item builder with a regular expression matching. The field to be matched should be a string.

Example

let query_item = Comparison::field("username").matches(r#"^[0.9](0.6)$"#);
let query = Query::new("Users").filter(Filter::new(query_item));
assert_eq!(query.to_aql(), r#"FOR a in Users FILTER a.username =~ "^[0.9](0.6)$" return a"#);

pub fn does_not_match(self, regular_expression: &str) -> Comparison

Finalizes the current query item builder with an inverse regular expression matching. The field to be matched should be a string.

Example

let query_item = Comparison::field("username").does_not_match(r#"^[0.9](0.6)$"#);
let query = Query::new("Users").filter(Filter::new(query_item));
assert_eq!(query.to_aql(), r#"FOR a in Users FILTER a.username !~ "^[0.9](0.6)$" return a"#);

pub fn like(self, pattern: &str) -> Comparison

Finalizes the current query item builder with string comparison. The field to be matched should be a string.

Example

let query_item = Comparison::field("username").like("%felix%");
let query = Query::new("Users").filter(Filter::new(query_item));
assert_eq!(query.to_aql(), r#"FOR a in Users FILTER a.username LIKE "%felix%" return a"#);

pub fn not_like(self, pattern: &str) -> Comparison

Finalizes the current query item builder with string comparison. The field to be matched should be a string.

Example

let query_item = Comparison::field("username").not_like("%felix%");
let query = Query::new("Users").filter(Filter::new(query_item));
assert_eq!(query.to_aql(), r#"FOR a in Users FILTER a.username NOT LIKE "%felix%" return a"#);

pub fn equals<T>(self, value: T) -> Comparison where
    T: Display, 

Finalizes the current query item builder with an equality comparison.

Note

The field will not be put between quotes. This means you cannot use this for string comparison Use equals_str instead

Example

• Numeric example:

let query_item = Comparison::field("age").equals(18);
let query = Query::new("Users").filter(Filter::new(query_item));
assert_eq!(query.to_aql(), "FOR a in Users FILTER a.age == 18 return a");

• String example:

// With simple equality the comparison will fail
let query_item = Comparison::field("username").equals("felix");
let query = Query::new("User").filter(Filter::new(query_item));
assert_eq!(query.to_aql(), "FOR a in User FILTER a.username == felix return a");

// With the String equality it would work
let query_item = Comparison::field("username").equals_str("felix");
let query = Query::new("User").filter(Filter::new(query_item));
assert_eq!(query.to_aql(), r#"FOR a in User FILTER a.username == "felix" return a"#);

pub fn different_than<T>(self, value: T) -> Comparison where
    T: Display, 

Finalizes the current query item builder with an ineequality comparison.

Note

The field will not be put between quotes. This means you cannot use this for string comparison Use different_than_str instead

Example

• Numeric example:

let query_item = Comparison::field("age").different_than(18);
let query = Query::new("Users").filter(Filter::new(query_item));
assert_eq!(query.to_aql(), "FOR a in Users FILTER a.age != 18 return a");

• String example:

// With simple inequality the comparison will fail
let query_item = Comparison::field("username").different_than("felix");
let query = Query::new("User").filter(Filter::new(query_item));
assert_eq!(query.to_aql(), "FOR a in User FILTER a.username != felix return a");

// With the String inequality it would work
let query_item = Comparison::field("username").different_than_str("felix");
let query = Query::new("User").filter(Filter::new(query_item));
assert_eq!(query.to_aql(), r#"FOR a in User FILTER a.username != "felix" return a"#);

pub fn greater_than<T>(self, value: T) -> Comparison where
    T: Num + Display, 

Finalizes the current query item builder with numeric comparison. The field to be matched should be a numeric type.

Example

let query_item = Comparison::field("age").greater_than(18);
let query = Query::new("Users").filter(Filter::new(query_item));
assert_eq!(query.to_aql(), "FOR a in Users FILTER a.age > 18 return a");

pub fn greater_or_equal<T>(self, value: T) -> Comparison where
    T: Num + Display, 

Finalizes the current query item builder with numeric comparison. The field to be matched should be a numeric type.

Example

let query_item = Comparison::field("age").greater_or_equal(18);
let query = Query::new("Users").filter(Filter::new(query_item));
assert_eq!(query.to_aql(), "FOR a in Users FILTER a.age >= 18 return a");

pub fn lesser_than<T>(self, value: T) -> Comparison where
    T: Num + Display, 

Finalizes the current query item builder with numeric comparison. The field to be matched should be a numeric type.

Example

let query_item = Comparison::field("age").lesser_than(18);
let query = Query::new("Users").filter(Filter::new(query_item));
assert_eq!(query.to_aql(), "FOR a in Users FILTER a.age < 18 return a");

pub fn lesser_or_equal<T>(self, value: T) -> Comparison where
    T: Num + Display, 

Finalizes the current query item builder with numeric comparison. The field to be matched should be a numeric type.

Example

let query_item = Comparison::field("age").lesser_or_equal(18);
let query = Query::new("Users").filter(Filter::new(query_item));
assert_eq!(query.to_aql(), "FOR a in Users FILTER a.age <= 18 return a");

pub fn in_array<T>(self, array: &[T]) -> Comparison where
    T: Display, 

Finalizes the current query item builder with an inclusion in a numeric array comparison. The field to be matched should be a numeric type.

Example

let query_item = Comparison::field("age").in_array(&[1, 11, 16, 18]);
let query = Query::new("Users").filter(Filter::new(query_item));
assert_eq!(query.to_aql(), "FOR a in Users FILTER a.age IN [1, 11, 16, 18] return a");

pub fn not_in_array<T>(self, array: &[T]) -> Comparison where
    T: Display, 

Finalizes the current query item builder with an inclusion in a numeric array comparison. The field to be matched should be a numeric type.

Example

let query_item = Comparison::field("age").not_in_array(&[1, 11, 16, 18]);
let query = Query::new("Users").filter(Filter::new(query_item));
assert_eq!(query.to_aql(), "FOR a in Users FILTER a.age NOT IN [1, 11, 16, 18] return a");

pub fn in_str_array<T>(self, array: &[T]) -> Comparison where
    T: Display, 

Finalizes the current query item builder with an inclusion in a string array comparison. The field to be matched should be a string type.

Example

let query_item = Comparison::field("username").in_str_array(&["felix", "123felix"]);
let query = Query::new("Users").filter(Filter::new(query_item));
assert_eq!(query.to_aql(), r#"FOR a in Users FILTER a.username IN ["felix", "123felix"] return a"#);

pub fn not_in_str_array<T>(self, array: &[T]) -> Comparison where
    T: Display, 

Finalizes the current query item builder with an inclusion in a string array comparison. The field to be matched should be a string type.

Example

let query_item = Comparison::field("username").not_in_str_array(&["felix", "123felix"]);
let query = Query::new("Users").filter(Filter::new(query_item));
assert_eq!(query.to_aql(), r#"FOR a in Users FILTER a.username NOT IN ["felix", "123felix"] return a"#);

pub fn is_null(self) -> Comparison

Finalizes the current query item builder with a null comparison.

Example

let query_item = Comparison::field("username").is_null();
let query = Query::new("Users").filter(Filter::new(query_item));
assert_eq!(query.to_aql(), "FOR a in Users FILTER a.username == null return a");

pub fn not_null(self) -> Comparison

Finalizes the current query item builder with a not null comparison.

Example

let query_item = Comparison::field("username").not_null();
let query = Query::new("Users").filter(Filter::new(query_item));
assert_eq!(query.to_aql(), "FOR a in Users FILTER a.username != null return a");

pub fn is_true(self) -> Comparison

Finalizes the current query item builder with a boolean comparison. The field to be matched should be a boolean type.

Example

let query_item = Comparison::field("is_authorized").is_true();
let query = Query::new("Users").filter(Filter::new(query_item));
assert_eq!(query.to_aql(), "FOR a in Users FILTER a.is_authorized == true return a");

pub fn is_false(self) -> Comparison

Finalizes the current query item builder with a boolean comparison. The field to be matched should be a boolean type.

Example

let query_item = Comparison::field("is_authorized").is_false();
let query = Query::new("Users").filter(Filter::new(query_item));
assert_eq!(query.to_aql(), "FOR a in Users FILTER a.is_authorized == false return a");

Trait Implementations

impl Clone for ComparisonBuilder

fn clone(&self) -> ComparisonBuilder

Returns a copy of the value.

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

Performs copy-assignment from source.

impl Debug for ComparisonBuilder

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

Formats the value using the given formatter.