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bleve/query_string.go
Marty Schoch 8f8bb91439 simplify date parsing in queries, add date to query string
parsing of date ranges in queries no longer consults the
index mapping.  it was deteremined that this wasn't very useful
and led to overly complicated query syntax/behavior.

instead, applications get set the datetime parser used for
date range queries with the top-level config QueryDateTimeParser

also, we now support querying date ranges in the query string,
the syntax is:

field:>"date"

>,>=,<,<= operators are supported
the date must be surrounded by quotes
and must parse in the configured date format
2016-04-22 17:12:10 -04:00

64 lines
1.7 KiB
Go

// Copyright (c) 2014 Couchbase, Inc.
// Licensed under the Apache License, Version 2.0 (the "License"); you may not use this file
// except in compliance with the License. You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
// Unless required by applicable law or agreed to in writing, software distributed under the
// License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND,
// either express or implied. See the License for the specific language governing permissions
// and limitations under the License.
package bleve
import (
"github.com/blevesearch/bleve/index"
"github.com/blevesearch/bleve/search"
)
type queryStringQuery struct {
Query string `json:"query"`
BoostVal float64 `json:"boost,omitempty"`
}
// NewQueryStringQuery creates a new Query used for
// finding documents that satisfy a query string. The
// query string is a small query language for humans.
func NewQueryStringQuery(query string) *queryStringQuery {
return &queryStringQuery{
Query: query,
BoostVal: 1.0,
}
}
func (q *queryStringQuery) Boost() float64 {
return q.BoostVal
}
func (q *queryStringQuery) SetBoost(b float64) Query {
q.BoostVal = b
return q
}
func (q *queryStringQuery) Searcher(i index.IndexReader, m *IndexMapping, explain bool) (search.Searcher, error) {
newQuery, err := parseQuerySyntax(q.Query)
if err != nil {
return nil, err
}
return newQuery.Searcher(i, m, explain)
}
func (q *queryStringQuery) Validate() error {
newQuery, err := parseQuerySyntax(q.Query)
if err != nil {
return err
}
return newQuery.Validate()
}
func (q *queryStringQuery) Field() string {
return ""
}
func (q *queryStringQuery) SetField(f string) Query {
return q
}