filter

package
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Published: Mar 26, 2024 License: Apache-2.0 Imports: 7 Imported by: 0

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Index

Constants

This section is empty.

Variables

This section is empty.

Functions

func DefaultParseBool

func DefaultParseBool(c Clause) (bool, error)

DefaultParseBool converts the value of the clause to boolean.

func DefaultParseInt

func DefaultParseInt(c Clause) (int64, error)

DefaultParseInt converts the value of the clause to int64.

func DefaultParseRegexp

func DefaultParseRegexp(c Clause) (*regexp.Regexp, error)

DefaultParseRegexp converts the value of the clause to regexp.

func DefaultParseString

func DefaultParseString(c Clause) (string, error)

DefaultParseString converts the value of the clause to string.

func DefaultParseStringSlice added in v0.3.0

func DefaultParseStringSlice(c Clause) ([]string, error)

DefaultParseStringSlice converts the value of the clause to a slice of string.

func DefaultParseUint

func DefaultParseUint(c Clause) (uint64, error)

DefaultParseUint converts the value of the clause to Uint64.

func Match

func Match(obj any, set ClauseSet) (bool, error)

Match returns true if the given object matches the given filter.

func ValueOf

func ValueOf(obj any, field string) any

ValueOf returns the value of the given field.

Types

type Clause

type Clause struct {
	PrevLogical string
	Not         bool
	Field       string
	Operator    string
	Value       string
}

Clause is a single filter clause in a filter string.

type ClauseSet

type ClauseSet struct {
	Clauses []Clause
	Ops     OperatorSet

	ParseInt         func(Clause) (int64, error)
	ParseUint        func(Clause) (uint64, error)
	ParseString      func(Clause) (string, error)
	ParseBool        func(Clause) (bool, error)
	ParseRegexp      func(Clause) (*regexp.Regexp, error)
	ParseStringSlice func(Clause) ([]string, error)
}

ClauseSet is a set of clauses. There are configurable functions that can be used to perform unique parsing of the clauses.

func Parse

func Parse(s string, op OperatorSet) (*ClauseSet, error)

Parse a user-provided filter string.

type OperatorSet

type OperatorSet struct {
	And       string
	Or        string
	Equals    string
	NotEquals string

	GreaterThan  string
	LessThan     string
	GreaterEqual string
	LessEqual    string

	Negate string
	Quote  []string
}

OperatorSet is represents the types of operators and symbols that a filter can support.

func QueryOperatorSet

func QueryOperatorSet() OperatorSet

QueryOperatorSet returns the default operator set for REST API queries.

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