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collection_group_setup.go
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/
collection_group_setup.go
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// Copyright 2019 Google LLC
//
// 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
//
// https://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 firestore
// [START firestore_query_collection_group_dataset]
import (
"context"
"fmt"
"cloud.google.com/go/firestore"
)
// collectionGroupSetup sets up a collection group to query.
func collectionGroupSetup(projectID, cityCollection string) error {
ctx := context.Background()
client, err := firestore.NewClient(ctx, projectID)
if err != nil {
return fmt.Errorf("firestore.NewClient: %v", err)
}
defer client.Close()
landmarks := []struct {
city, name, t string
}{
{"SF", "Golden Gate Bridge", "bridge"},
{"SF", "Legion of Honor", "museum"},
{"LA", "Griffith Park", "park"},
{"LA", "The Getty", "museum"},
{"DC", "Lincoln Memorial", "memorial"},
{"DC", "National Air and Space Museum", "museum"},
{"TOK", "Ueno Park", "park"},
{"TOK", "National Museum of Nature and Science", "museum"},
{"BJ", "Jingshan Park", "park"},
{"BJ", "Beijing Ancient Observatory", "museum"},
}
cities := client.Collection(cityCollection)
for _, l := range landmarks {
if _, err := cities.Doc(l.city).Collection("landmarks").NewDoc().Set(ctx, map[string]string{
"name": l.name,
"type": l.t,
}); err != nil {
return fmt.Errorf("Set: %v", err)
}
}
return nil
}
// [END firestore_query_collection_group_dataset]