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Versions: 12
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Stored size: 1.57 KB
Contents
class Card
class Query
class Value
include Clause
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 [rawvalue[0], rawvalue[1..-1]]
else raise("Invalid Condition Clause #{rawvalue}.inspect}")
end
end
def canonicalize_operator
if target = OPERATORS[@operator.to_s]
@operator = target
else
raise Card::Error::BadQuery, "Invalid Operator #{@operator}"
end
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
op = @operator
v = @value
table = @query.table_alias
field, v = case field.to_s
when "name"
["#{table}.key", [v].flatten.map(&:to_name).map(&:key)]
when "content"
["#{table}.db_content", v]
else
["#{table}.#{safe_sql field}", v]
end
v = v[0] if Array === v && v.length == 1 && op != "in"
if op == "~"
cxn, v = match_prep(v)
%(#{field} #{cxn.match(sqlize(v))})
else
"#{field} #{op} #{sqlize(v)}"
end
end
end
end
end
Version data entries
12 entries across 12 versions & 1 rubygems