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query_data.rb
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query_data.rb
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# Copyright 2020 Google, 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.
require "google/cloud/firestore"
def query_create_examples project_id:, collection_path: "cities"
# project_id = "Your Google Cloud Project ID"
# collection_path = "cities"
firestore = Google::Cloud::Firestore.new project_id: project_id
# [START firestore_query_filter_dataset]
cities_ref = firestore.col collection_path
cities_ref.doc("SF").set(
{
name: "San Francisco",
state: "CA",
country: "USA",
capital: false,
population: 860_000,
regions: ["west_coast", "norcal"]
}
)
cities_ref.doc("LA").set(
{
name: "Los Angeles",
state: "CA",
country: "USA",
capital: false,
population: 3_900_000,
regions: ["west_coast", "socal"]
}
)
cities_ref.doc("DC").set(
{
name: "Washington D.C.",
state: nil,
country: "USA",
capital: true,
population: 680_000,
regions: ["east_coast"]
}
)
cities_ref.doc("TOK").set(
{
name: "Tokyo",
state: nil,
country: "Japan",
capital: true,
population: 9_000_000,
regions: ["kanto", "honshu"]
}
)
cities_ref.doc("BJ").set(
{
name: "Beijing",
state: nil,
country: "China",
capital: true,
population: 21_500_000,
regions: ["jingjinji", "hebei"]
}
)
# [END firestore_query_filter_dataset]
puts "Added example cities data to the cities collection."
end
def create_query_state project_id:, collection_path: "cities"
# project_id = "Your Google Cloud Project ID"
# collection_path = "cities"
firestore = Google::Cloud::Firestore.new project_id: project_id
# [START firestore_query_filter_eq_string]
cities_ref = firestore.col collection_path
query = cities_ref.where "state", "=", "CA"
query.get do |city|
puts "Document #{city.document_id} returned by query state=CA."
end
# [END firestore_query_filter_eq_string]
end
def create_query_capital project_id:, collection_path: "cities"
# project_id = "Your Google Cloud Project ID"
# collection_path = "cities"
firestore = Google::Cloud::Firestore.new project_id: project_id
# [START firestore_query_filter_eq_boolean]
cities_ref = firestore.col collection_path
query = cities_ref.where "capital", "=", true
query.get do |city|
puts "Document #{city.document_id} returned by query capital=true."
end
# [END firestore_query_filter_eq_boolean]
end
def simple_queries project_id:, collection_path: "cities"
# project_id = "Your Google Cloud Project ID"
# collection_path = "cities"
firestore = Google::Cloud::Firestore.new project_id: project_id
cities_ref = firestore.col collection_path
# [START firestore_query_filter_single_examples]
state_query = cities_ref.where "state", "=", "CA"
population_query = cities_ref.where "population", ">", 1_000_000
name_query = cities_ref.where "name", ">=", "San Francisco"
# [END firestore_query_filter_single_examples]
state_query.get do |city|
puts "Document #{city.document_id} returned by query state=CA."
end
population_query.get do |city|
puts "Document #{city.document_id} returned by query population>1000000."
end
name_query.get do |city|
puts "Document #{city.document_id} returned by query name>=San Francisco."
end
end
def chained_query project_id:, collection_path: "cities"
# project_id = "Your Google Cloud Project ID"
# collection_path = "cities"
firestore = Google::Cloud::Firestore.new project_id: project_id
cities_ref = firestore.col collection_path
# [START firestore_query_filter_compound_multi_eq]
chained_query = cities_ref.where("state", "=", "CA").where("name", "=", "San Francisco")
# [END firestore_query_filter_compound_multi_eq]
chained_query.get do |city|
puts "Document #{city.document_id} returned by query state=CA and name=San Francisco."
end
end
def composite_index_chained_query project_id:, collection_path: "cities"
# project_id = "Your Google Cloud Project ID"
# collection_path = "cities"
firestore = Google::Cloud::Firestore.new project_id: project_id
cities_ref = firestore.col collection_path
# [START firestore_query_filter_compound_multi_eq_lt]
chained_query = cities_ref.where("state", "=", "CA").where("population", "<", 1_000_000)
# [END firestore_query_filter_compound_multi_eq_lt]
chained_query.get do |city|
puts "Document #{city.document_id} returned by query state=CA and population<1000000."
end
end
def range_query project_id:, collection_path: "cities"
# project_id = "Your Google Cloud Project ID"
# collection_path = "cities"
firestore = Google::Cloud::Firestore.new project_id: project_id
cities_ref = firestore.col collection_path
# [START firestore_query_filter_range_valid]
range_query = cities_ref.where("state", ">=", "CA").where("state", "<=", "IN")
# [END firestore_query_filter_range_valid]
range_query.get do |city|
puts "Document #{city.document_id} returned by query CA<=state<=IN."
end
end
def invalid_range_query project_id:, collection_path: "cities"
# project_id = "Your Google Cloud Project ID"
# collection_path = "cities"
firestore = Google::Cloud::Firestore.new project_id: project_id
cities_ref = firestore.col collection_path
# [START firestore_query_filter_range_invalid]
invalid_range_query = cities_ref.where("state", ">=", "CA").where("population", ">", 1_000_000)
# [END firestore_query_filter_range_invalid]
end
def in_query_without_array project_id:, collection_path: "cities"
# project_id = "Your Google Cloud Project ID"
# collection_path = "cities"
firestore = Google::Cloud::Firestore.new project_id: project_id
# [START firestore_query_filter_in]
cities_ref = firestore.col collection_path
usr_or_japan = cities_ref.where "country", "in", ["USA", "Japan"]
# [END firestore_query_filter_in]
usr_or_japan.get do |city|
puts "Document #{city.document_id} returned by query in ['USA','Japan']."
end
end
def in_query_with_array project_id:, collection_path: "cities"
# project_id = "Your Google Cloud Project ID"
# collection_path = "cities"
firestore = Google::Cloud::Firestore.new project_id: project_id
# [START firestore_query_filter_in_with_array]
cities_ref = firestore.col collection_path
exactly_one_cost = cities_ref.where "regions", "in", [["west_coast"], ["east_coast"]]
# [END firestore_query_filter_in_with_array]
exactly_one_cost.get do |city|
puts "Document #{city.document_id} returned by query in [['west_coast'], ['east_coast']]."
end
end
def query_not_equals project_id:, collection_path: "cities"
# project_id = "Your Google Cloud Project ID"
# collection_path = "cities"
firestore = Google::Cloud::Firestore.new project_id: project_id
# [START firestore_query_filter_not_eq]
cities_ref = firestore.col collection_path
query = cities_ref.where "capital", "!=", false
# [END firestore_query_filter_not_eq]
query.get do |city|
puts "Document #{city.document_id} returned by query capital!=false."
end
end
def filter_not_in project_id:, collection_path: "cities"
# project_id = "Your Google Cloud Project ID"
# collection_path = "cities"
firestore = Google::Cloud::Firestore.new project_id: project_id
# [START firestore_query_filter_not_in]
cities_ref = firestore.col collection_path
usr_or_japan = cities_ref.where "country", "not_in", ["USA", "Japan"]
# [END firestore_query_filter_not_in]
usr_or_japan.get do |city|
puts "Document #{city.document_id} returned by query not_in ['USA','Japan']."
end
end
def array_contains_any_queries project_id:, collection_path: "cities"
# project_id = "Your Google Cloud Project ID"
# collection_path = "cities"
firestore = Google::Cloud::Firestore.new project_id: project_id
# [START firestore_query_filter_array_contains_any]
cities_ref = firestore.col collection_path
costal_cities = cities_ref.where "regions", "array-contains-any", ["west_coast", "east_coast"]
# [END firestore_query_filter_array_contains_any]
costal_cities.get do |city|
puts "Document #{city.document_id} returned by query array-contains-any ['west_coast', 'east_coast']."
end
end
def array_contains_filter project_id:, collection_path: "cities"
# project_id = "Your Google Cloud Project ID"
# collection_path = "cities"
firestore = Google::Cloud::Firestore.new project_id: project_id
# [START firestore_query_filter_array_contains]
cities_ref = firestore.col collection_path
cities = cities_ref.where "regions", "array-contains", "west_coast"
# [END firestore_query_filter_array_contains]
cities.get do |city|
puts "Document #{city.document_id} returned by query array-contains 'west_coast'."
end
end
def collection_group_query project_id:, collection_path: "cities"
# project_id = "Your Google Cloud Project ID"
# collection_path = "cities"
firestore = Google::Cloud::Firestore.new project_id: project_id
# [START firestore_query_collection_group_dataset]
cities_ref = firestore.col collection_path
sf_landmarks = cities_ref.document("SF").collection("landmarks")
sf_landmarks.document.set(
{
name: "Golden Gate Bridge",
type: "bridge"
}
)
sf_landmarks.document.set(
{
name: "Legion of Honor",
type: "museum"
}
)
la_landmarks = cities_ref.document("LA").collection("landmarks")
la_landmarks.document.set(
{
name: "Griffith Park",
type: "park"
}
)
la_landmarks.document.set(
{
name: "The Getty",
type: "museum"
}
)
dc_landmarks = cities_ref.document("DC").collection("landmarks")
dc_landmarks.document.set(
{
name: "Lincoln Memorial",
type: "memorial"
}
)
dc_landmarks.document.set(
{
name: "National Air and Space Museum",
type: "museum"
}
)
tok_landmarks = cities_ref.document("TOK").collection("landmarks")
tok_landmarks.document.set(
{
name: "Ueno Park",
type: "park"
}
)
tok_landmarks.document.set(
{
name: "National Museum of Nature and Science",
type: "museum"
}
)
bj_landmarks = cities_ref.document("BJ").collection("landmarks")
bj_landmarks.document.set(
{
name: "Jingshan Park",
type: "park"
}
)
bj_landmarks.document.set(
{
name: "Beijing Ancient Observatory",
type: "museum"
}
)
# [END firestore_query_collection_group_dataset]
# [START firestore_query_collection_group_filter_eq]
museums = firestore.collection_group("landmarks").where("type", "==", "museum")
museums.get do |museum|
puts "#{museum[:type]} name is #{museum[:name]}."
end
# [END firestore_query_collection_group_filter_eq]
end
if $PROGRAM_NAME == __FILE__
project = ENV["FIRESTORE_PROJECT"]
case ARGV.shift
when "query_create_examples"
query_create_examples project_id: project
when "create_query_state"
create_query_state project_id: project
when "create_query_capital"
create_query_capital project_id: project
when "simple_queries"
simple_queries project_id: project
when "chained_query"
chained_query project_id: project
when "composite_index_chained_query"
composite_index_chained_query project_id: project
when "range_query"
range_query project_id: project
when "invalid_range_query"
invalid_range_query project_id: project
when "in_query_without_array"
in_query_without_array project_id: project
when "in_query_with_array"
in_query_with_array project_id: project
when "query_not_equals"
query_not_equals project_id: project
when "filter_not_in"
filter_not_in project_id: project
when "array_contains_any_queries"
array_contains_any_queries project_id: project
when "array_contains_filter"
array_contains_filter project_id: project
when "collection_group_query"
collection_group_query project_id: project
else
puts <<~USAGE
Usage: bundle exec ruby query_data.rb [command]
Commands:
query_create_examples Create an example collection of documents.
create_query_state Create a query by state.
create_query_capital Create a query by capital.
simple_queries Create simple queries with a single where clause.
chained_query Create a query with chained clauses.
composite_index_chained_query Create a composite index chained query.
range_query Create a query with range clauses.
invalid_range_query An example of an invalid range query.
in_query_without_array In queries without array.
in_query_with_array In queries with array.
query_not_equals Create a query with a NOT_EQUAL where clause.
filter_not_in Create a query with a NOT_IN where clause.
array_contains_any_queries Array contains any in query.
array_contains_filter Array contains filter.
collection_group_query Add sub collection and filter.
USAGE
end
end