Class: Makitzo::Store::MySQL

Inherits:
Object
  • Object
show all
Defined in:
lib/makitzo/store/mysql.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(config = {}) ⇒ MySQL

Returns a new instance of MySQL.



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# File 'lib/makitzo/store/mysql.rb', line 7

def initialize(config = {})
  config.each { |k,v| send(:"#{k}=", v) }
  @mutex = Mutex.new
end

Instance Attribute Details

#database ⇒ Object

Returns the value of attribute database.



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# File 'lib/makitzo/store/mysql.rb', line 5

def database
  @database
end

#host ⇒ Object

Returns the value of attribute host.



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# File 'lib/makitzo/store/mysql.rb', line 5

def host
  @host
end

#password ⇒ Object

Returns the value of attribute password.



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# File 'lib/makitzo/store/mysql.rb', line 5

def password
  @password
end

#port ⇒ Object

Returns the value of attribute port.



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# File 'lib/makitzo/store/mysql.rb', line 5

def port
  @port
end

#socket ⇒ Object

Returns the value of attribute socket.



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# File 'lib/makitzo/store/mysql.rb', line 5

def socket
  @socket
end

#username ⇒ Object

Returns the value of attribute username.



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# File 'lib/makitzo/store/mysql.rb', line 5

def username
  @username
end

Instance Method Details

#applied_migrations_for_all_hosts ⇒ Object 



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# File 'lib/makitzo/store/mysql.rb', line 90

def applied_migrations_for_all_hosts
  sync do
    @client.query("SELECT * FROM #{migrations_table} ORDER BY migration_id ASC").inject({}) do |m,r|
      (m[r['hostname']] ||= []) << r['migration_id']
      m
    end
  end
end

#applied_migrations_for_host(host) ⇒ Object 



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# File 'lib/makitzo/store/mysql.rb', line 99

def applied_migrations_for_host(host)
  sync do
    @client.query("SELECT migration_id FROM #{migrations_table} WHERE hostname = #{qs(host)} ORDER BY migration_id ASC").inject([]) do |m,r|
      m << r['migration_id']
    end
  end
end

#mark_migration_as_applied(host, migration) ⇒ Object 



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# File 'lib/makitzo/store/mysql.rb', line 78

def mark_migration_as_applied(host, migration)
  sync do
    @client.query("REPLACE INTO #{migrations_table} (hostname, migration_id) VALUES (#{qs(host)}, #{migration.to_i})")
  end
end

#open(&block) ⇒ Object 



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# File 'lib/makitzo/store/mysql.rb', line 12

def open(&block)
  connect!
  begin
    yield if block_given?
  ensure
    cleanup!
  end
end

#read(host, key) ⇒ Object 



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# File 'lib/makitzo/store/mysql.rb', line 21

def read(host, key)
  sync do
    @client.query("SELECT * FROM #{key_value_table} WHERE hostname = #{qs(host)} AND `key` = #{qs(key)}", :cast_booleans => true).each do |r|
      return row_value(r)
    end
    nil
  end
end

#read_all(host, *keys) ⇒ Object 



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# File 'lib/makitzo/store/mysql.rb', line 62

def read_all(host, *keys)
  out = [keys].flatten.inject({}) { |hsh,k| hsh[k.to_s] = nil; hsh }
  sync do
    @client.query("SELECT * FROM #{key_value_table} WHERE hostname = #{qs(host)} AND `key` IN (#{out.keys.map { |k| qs(k) }.join(', ')})", :cast_booleans => true).each do |r|
      out[r['key']] = row_value(r)
    end
  end
  out
end

#unmark_migration_as_applied(host, migration) ⇒ Object 



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# File 'lib/makitzo/store/mysql.rb', line 84

def unmark_migration_as_applied(host, migration)
  sync do
    @client.query("DELETE FROM #{migrations_table} WHERE hostname = #{qs(host)} AND migration_id = #{migration.to_i}")
  end
end

#write(host, key, value) ⇒ Object 



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# File 'lib/makitzo/store/mysql.rb', line 30

def write(host, key, value)
  value_hash = {
    'value_int'       => 'NULL',
    'value_float'     => 'NULL',
    'value_date'      => 'NULL',
    'value_datetime'  => 'NULL',
    'value_boolean'   => 'NULL',
    'value_string'    => 'NULL'
  }
  
  case value
  when Fixnum                 then  value_hash['value_int'] = value.to_s
  when Float                  then  value_hash['value_float'] = value.to_s
  when DateTime, Time         then  value_hash['value_datetime'] = qs(value.strftime("%Y-%m-%dT%H:%M:%S"))
  when Date                   then  value_hash['value_date'] = qs(value.strftime("%Y-%m-%d"))
  when TrueClass, FalseClass  then  value_hash['value_boolean'] = value ? '1' : '0'
  when NilClass               then  ; # do nothing
  else                              value_hash['value_string'] = qs(value)
  end
  
  sync do
    @client.query("
      REPLACE INTO #{key_value_table}
        (hostname, `key`, value_int, value_float, value_date, value_datetime, value_boolean, value_string)
      VALUES
        (#{qs(host)}, #{qs(key)}, #{value_hash['value_int']}, #{value_hash['value_float']},
         #{value_hash['value_date']}, #{value_hash['value_datetime']}, #{value_hash['value_boolean']},
         #{value_hash['value_string']})
    ")
  end
end

#write_all(host, hash) ⇒ Object 



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# File 'lib/makitzo/store/mysql.rb', line 72

def write_all(host, hash)
  sync do
    hash.each { |k,v| write(host, k, v) }
  end
end