fields

Documentation

Index

• func LookupFieldByTag(tag string, input *sdk.SignedTxnWithAD) (interface{}, error)
• func ValidFieldOperation(input string) bool
• type Filter
  • func (f Filter) SearchAndFilter(payset []sdk.SignedTxnInBlock) ([]sdk.SignedTxnInBlock, error)
• type Operation
• type Searcher
  • func MakeFieldSearcher(e expression.Expression, expressionType expression.Type, tag string, ...) (*Searcher, error)

Functions

func LookupFieldByTag

func LookupFieldByTag(tag string, input *sdk.SignedTxnWithAD) (interface{}, error)

LookupFieldByTag takes a tag and associated SignedTxnWithAD and returns the value referenced by the tag. An error is returned if the tag does not exist

func ValidFieldOperation

func ValidFieldOperation(input string) bool

ValidFieldOperation returns true if the input is a valid operation

Types

type Filter

type Filter struct {
	Op        Operation
	Searchers []*Searcher
	OmitGroup bool
}

Filter an object that combines field searches with a boolean operator

func (Filter) SearchAndFilter

func (f Filter) SearchAndFilter(payset []sdk.SignedTxnInBlock) ([]sdk.SignedTxnInBlock, error)

SearchAndFilter searches through the block data and applies the operation to the results

type Operation

type Operation string

Operation an operation like "any" or "all" for boolean logic

type Searcher

type Searcher struct {
	Exp         expression.Expression
	Tag         string
	SearchInner bool
}

Searcher searches the struct with an expression

func MakeFieldSearcher

func MakeFieldSearcher(e expression.Expression, expressionType expression.Type, tag string, searchInner bool) (*Searcher, error)

MakeFieldSearcher will check that the field exists and that it contains the necessary "conversion" function TODO: Remove expressionType. It is validated when the expression is created.