44 lines
1 KiB
Ruby
44 lines
1 KiB
Ruby
class Keystore < ActiveRecord::Base
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validates_presence_of :key
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attr_accessible nil
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def self.get(key)
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Keystore.find_by_key(key)
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end
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def self.put(key, value)
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Keystore.connection.query([ "INSERT INTO #{Keystore.table_name} (" +
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"`key`, `value`) VALUES (?, ?) ON DUPLICATE KEY UPDATE `count` = ?",
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key, amount ])
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true
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end
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def self.increment_value_for(key, amount = 1)
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self.incremented_value_for(key, amount)
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end
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def self.incremented_value_for(key, amount = 1)
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new_value = nil
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Keystore.connection.query([ "INSERT INTO #{Keystore.table_name} (" +
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"`key`, `value`) VALUES (?, ?) ON DUPLICATE KEY UPDATE `count` = " +
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"`count` + ?", key, amount, amount ])
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return self.value_for(key)
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end
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def self.decrement_value_for(key, amount = -1)
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self.increment_value_for(key, amount)
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end
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def self.decremented_value_for(key, amount = -1)
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self.incremented_value_for(key, amount)
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end
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def self.value_for(key)
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self.get(key).try(:value)
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end
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end
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