discourse/app/models/plugin_store.rb

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# API to wrap up plugin store rows
class PluginStore
def self.get(plugin_name, key)
if row = PluginStoreRow.find_by(plugin_name: plugin_name, key: key)
cast_value(row.type_name, row.value)
end
end
def self.set(plugin_name, key, value)
hash = {plugin_name: plugin_name, key: key}
row = PluginStoreRow.find_by(hash) || row = PluginStoreRow.new(hash)
row.type_name = determine_type(value)
# nil are stored as nil
row.value =
if row.type_name == "JSON"
value.to_json
elsif value
value.to_s
end
row.save
end
def self.remove(plugin_name, key)
PluginStoreRow.where(plugin_name: plugin_name, key: key).destroy_all
end
protected
def self.determine_type(value)
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value.is_a?(Hash) || value.is_a?(Array) ? "JSON" : value.class.to_s
end
def self.map_json(item)
if item.is_a? Hash
ActiveSupport::HashWithIndifferentAccess.new item
elsif item.is_a? Array
item.map { |subitem| map_json subitem}
else
item
end
end
def self.cast_value(type, value)
case type
when "Fixnum" then value.to_i
when "TrueClass", "FalseClass" then value == "true"
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when "JSON" then map_json(::JSON.parse(value))
else value
end
end
end