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Versions: 8
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Contents
module ROM
module SQL
# Type-specific methods
#
# @api public
module TypeExtensions
class << self
# Gets extensions for a type
#
# @param [Dry::Types::Type] wrapped
#
# @return [Hash]
#
# @api public
def [](wrapped)
type = wrapped.default? ? wrapped.type : wrapped
type = type.optional? ? type.right : type
@types[type.meta[:database]][type.meta[:db_type]] || EMPTY_HASH
end
# Registers a set of operations supported for a specific type
#
# @example
# ROM::SQL::Attribute::TypeExtensions.register(ROM::SQL::Types::PG::JSONB) do
# def contain(type, expr, keys)
# Attribute[Types::Bool].meta(sql_expr: expr.pg_jsonb.contains(value))
# end
# end
#
# @param [Dry::Types::Type] type Type
#
# @api public
def register(type, &block)
extensions = @types[type.meta[:database]]
db_type = type.meta[:db_type]
mod = Module.new(&block)
ctx = Object.new.extend(mod)
functions = mod.public_instance_methods.each_with_object({}) { |m, ms| ms[m] = ctx.method(m) }
extensions[db_type] = (extensions[db_type] || {}).merge(functions)
end
end
@types = ::Hash.new do |hash, database|
hash[database] = {}
end
end
end
end
Version data entries
8 entries across 8 versions & 1 rubygems