Class: CloudKit::MemoryQuery

Inherits:
Object
  • Object
show all
Defined in:
lib/cloudkit/store/memory_table.rb

Overview

MemoryQuery is used internally by MemoryTable to configure a query and run it against the store.

Instance Method Summary collapse

Constructor Details

#initialize ⇒ MemoryQuery

Initialize a new MemoryQuery.



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# File 'lib/cloudkit/store/memory_table.rb', line 76

def initialize
  @conditions = []
end

Instance Method Details

#add_condition(key, operator, value) ⇒ Object

Add a condition to this query. The operator parameter is ignored at this time, assuming only equality.



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# File 'lib/cloudkit/store/memory_table.rb', line 95

def add_condition(key, operator, value)
  @conditions << [key, operator, value]
end

#run(table) ⇒ Object

Run a query against the provided table using the conditions stored in this MemoryQuery instance. Returns all records that match all conditions. Conditions are added using #add_condition.



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# File 'lib/cloudkit/store/memory_table.rb', line 83

def run(table)
  table.keys.inject([]) do |result, key|
    if @conditions.all? { |condition| table[key][condition[0]] == condition[2] }
      result << table[key].merge(:pk => key)
    else
      result
    end
  end
end