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Versions: 12
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Stored size: 1.74 KB
Contents
class Card
module Query
class Value
include Clause
SQL_FIELD = { name: "key", content: "db_content" }.freeze
attr_reader :query, :operator, :value
def initialize rawvalue, query
@query = query
@operator, @value = parse_value rawvalue
canonicalize_operator
end
def parse_value rawvalue
case rawvalue
when String, Integer then ["=", rawvalue]
when Array then parse_array_value rawvalue
else raise("Invalid Condition Clause #{rawvalue}.inspect}")
end
end
def parse_array_value array
operator = operator?(array.first) ? array.shift : :in
[operator, array]
end
def canonicalize_operator
unless (target = OPERATORS[@operator.to_s])
raise Card::Error::BadQuery, "Invalid Operator #{@operator}"
end
@operator = target
end
def operator? key
OPERATORS.key? key.to_s
end
def sqlize v
case v
when Query then v.to_sql
when Array then "(" + v.flatten.map { |x| sqlize(x) }.join(",") + ")"
else quote(v.to_s)
end
end
def to_sql field
value = value_sql field, @value
"#{field_sql field} #{operational_sql value}"
end
def operational_sql value
if @operator == "~"
connection.match value
else
"#{@operator} #{value}"
end
end
def field_sql field
db_field = SQL_FIELD[field.to_sym] || safe_sql(field.to_s)
"#{@query.table_alias}.#{db_field}"
end
def value_sql field, value
value = [value].flatten.map(&:to_name).map(&:key) if field.to_sym == :name
sqlize value
end
end
end
end
Version data entries
12 entries across 12 versions & 1 rubygems