Class: KeyValueDB

Inherits:
JsonDB show all
Defined in:
lib/key_value_db.rb

Instance Method Summary collapse

Methods inherited from JsonDB

#get_data, load, #reload, #save, #set_data

Constructor Details

#initialize(file_path, max_count = 999999) ⇒ KeyValueDB

Returns a new instance of KeyValueDB.



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# File 'lib/key_value_db.rb', line 5

def initialize(file_path, max_count=999999)
    super(file_path)
    @max_count = max_count
end

Instance Method Details

#add(the_data) ⇒ Object 



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# File 'lib/key_value_db.rb', line 12

def add(the_data)
    if @data_hash_arr.size >= @max_count
        @data_hash_arr.shift
    end
    new_record = the_data
    @data_hash_arr << new_record
    new_record
end

#add_or_update_by_key(the_data, the_key) ⇒ Object 



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# File 'lib/key_value_db.rb', line 20

def add_or_update_by_key(the_data, the_key)
    found_index = -1
    @data_hash_arr.each_with_index do |cur_data, i|
        if cur_data[the_key]== the_data[the_key]
            found_index = i
            break
        end
    end
    if found_index > -1
        @data_hash_arr[found_index] = the_data
    else
        add(the_data)
    end
    the_data
end

#find(the_key, the_value) ⇒ Object 



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# File 'lib/key_value_db.rb', line 35

def find(the_key, the_value)
    @data_hash_arr.each do |cur_data|
        if cur_data[the_key] == the_value
            return cur_data
        end
    end
    return nil
end

#find_all(the_key, the_value) ⇒ Object 



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# File 'lib/key_value_db.rb', line 43

def find_all(the_key, the_value)
    @data_hash_arr.select do |cur_data|
        cur_data[the_key] == the_value
    end
end

#set_max_count(max_count) ⇒ Object 



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# File 'lib/key_value_db.rb', line 9

def set_max_count(max_count)
    @max_count = max_count
end