class Athena::Routing::Parameters
inherits Reference

A container representing parameters defined via ART::Route#defaults, or returned when matching a route. Allows the value to be of any type.

Constructors

.new(parameters : self) : self

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.new(hash : Hash(String, _))

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.new

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Methods

#[](name : String) : String

Returns the value of the parameter with the provided name as a String.

Raises a KeyError if no parameter with that name exists.

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#[]=(name : String, value : T) : Nil forall T

Sets a parameter with the provided name to value.

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#[]?(name : String) : String | Nil

Returns the value of the parameter with the provided name as a String if it exists, otherwise nil.

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#delete(name : String) : Nil

Removes the parameter with the provided name.

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#empty? : Bool

Returns true if empty.

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#get(name : String, type : T.class) : T forall T

Returns the value of the parameter with the provided name, casted to the provided type.

Raises a KeyError if no parameter with that name exists.

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#get?(name : String, type : T.class) : T | Nil forall T

Returns the value of the parameter with the provided name casted to the provided type if it exists, otherwise nil.

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#has_key?(name : String) : Bool

Returns true if a parameter with the provided name exists, otherwise false.

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#to_h : Hash(String, String | ::Nil)

Returns a Hash(String, String?) representation of these parameters. Values that are not String? are converted via #to_s.

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