Class: Google::Cloud::Datastore::Properties

Inherits:
Object
  • Object
show all
Defined in:
lib/google/cloud/datastore/properties.rb

Overview

Properties

Hash-like data structure for Datastore properties.

See Entity#properties

Class Method Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(properties = {}) ⇒ Properties

Returns a new instance of Properties



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# File 'lib/google/cloud/datastore/properties.rb', line 28

def initialize properties = {}
  @hash = {}
  properties.each do |key, value|
    key   = ensure_key_type key
    value = ensure_value_type value
    @hash[key] = value
  end
end

Class Method Details

.from_grpc(grpc_map) ⇒ Object 



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# File 'lib/google/cloud/datastore/properties.rb', line 79

def self.from_grpc grpc_map
  # For some reason Google::Protobuf::Map#map isn't returning the value.
  # It returns nil every time. COnvert to Hash to get actual objects.
  grpc_hash = Core::GRPCUtils.map_to_hash grpc_map
  grpc_array = grpc_hash.map do |(k, v)|
    [k.to_s, Core::GRPCUtils.from_value(v)]
  end
  new Hash[grpc_array]
end

Instance Method Details

#[](key) ⇒ Object Also known as: read 



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# File 'lib/google/cloud/datastore/properties.rb', line 37

def [] key
  key = ensure_key_type key
  @hash[key]
end

#[]=(key, value) ⇒ Object Also known as: write 



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# File 'lib/google/cloud/datastore/properties.rb', line 43

def []= key, value
  key   = ensure_key_type key
  value = ensure_value_type value
  @hash[key] = value
end

#delete(key, &block) ⇒ Object 



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# File 'lib/google/cloud/datastore/properties.rb', line 65

def delete key, &block
  key = ensure_key_type key
  @hash.delete key, &block
end

#each(&block) ⇒ Object 



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# File 'lib/google/cloud/datastore/properties.rb', line 61

def each &block
  @hash.each(&block)
end

#exist?(key) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/google/cloud/datastore/properties.rb', line 50

def exist? key
  key = ensure_key_type key
  @hash.key? key
end

#fetch(key, &_block) ⇒ Object 



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# File 'lib/google/cloud/datastore/properties.rb', line 55

def fetch key, &_block
  key = ensure_key_type key
  @hash[key] = yield unless exist? key
  @hash[key]
end

#to_grpc ⇒ Object 



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# File 'lib/google/cloud/datastore/properties.rb', line 75

def to_grpc
  Hash[@hash.map { |(k, v)| [k.to_s, Core::GRPCUtils.to_value(v)] }]
end

#to_h ⇒ Object Also known as: to_hash 



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# File 'lib/google/cloud/datastore/properties.rb', line 70

def to_h
  @hash.dup
end