Class: Eventosaurus::Models::Query

Inherits:
Object
  • Object
show all
Defined in:
lib/eventosaurus/models/query.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(definition) ⇒ Query

Returns a new instance of Query.



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# File 'lib/eventosaurus/models/query.rb', line 6

def initialize(definition)
  @partition_key_name = definition[:partition_key].keys[0]
  @partition_key_type = definition[:partition_key].values[0]
  @args = { table_name: definition[:full_table_name] }
end

Instance Attribute Details

#args ⇒ Object (readonly)

Returns the value of attribute args.



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# File 'lib/eventosaurus/models/query.rb', line 4

def args
  @args
end

#partition_key_name ⇒ Object (readonly)

Returns the value of attribute partition_key_name.



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# File 'lib/eventosaurus/models/query.rb', line 4

def partition_key_name
  @partition_key_name
end

#partition_key_type ⇒ Object (readonly)

Returns the value of attribute partition_key_type.



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# File 'lib/eventosaurus/models/query.rb', line 4

def partition_key_type
  @partition_key_type
end

Instance Method Details

#by_local_secondary(name:, value:, operator:) ⇒ Object 



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# File 'lib/eventosaurus/models/query.rb', line 40

def by_local_secondary(name:, value:, operator:)
  @args[:query_filter] ||= {}
  @args[:query_filter][name] = {
    attribute_value_list: [value],
    comparison_operator: operator
  }

  self
end

#by_partition_key(value:, operator:) ⇒ Object 



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# File 'lib/eventosaurus/models/query.rb', line 29

def by_partition_key(value:, operator:)
  @args[:key_conditions] = {
    partition_key_name => {
      attribute_value_list: [value],
      comparison_operator: operator
    }
  }

  self
end

#count ⇒ Object 



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# File 'lib/eventosaurus/models/query.rb', line 23

def count
  @args[:select] = 'COUNT'

  self
end

#run ⇒ Object 



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# File 'lib/eventosaurus/models/query.rb', line 12

def run
  Eventosaurus.configuration.dynamodb_client.query(args)
end

#select(attrs) ⇒ Object 



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# File 'lib/eventosaurus/models/query.rb', line 16

def select(attrs)
  @args[:select] = 'SPECIFIC_ATTRIBUTES'
  @args[:attributes_to_get] = attrs

  self
end