// parseFilterParam takes the basic configuration and generates a filter parameter.
func (q *Query) parseFilterParam(paramName, remainingKeyData, value string) (*definition.Parameter, error) {
remainingDataMatches := fieldFilter.FindStringSubmatch(remainingKeyData)
operation := defaultOperation
possibleRemainingAlias := ""
if remainingDataMatches != nil {
operation = remainingDataMatches[1]
possibleRemainingAlias = remainingDataMatches[2]
}
remainingAliasMatches := fieldFilter.FindStringSubmatch(possibleRemainingAlias)
alias := paramName
if remainingAliasMatches != nil {
alias = remainingAliasMatches[1]
}
parameter := definition.NewParameter(alias)
parameter.Name = paramName
parameter.Filter = q.getFilter(operation)
parameter.Value = value
if parameter.Filter == nil {
return nil, NewUnsupportedOperation(operation)
}
return parameter, nil
}
func (c *current) onTerm1() (interface{}, error) {
name := strings.TrimSpace(string(c.text))
return definition.NewParameter(name), nil
}