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Versions: 19
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Contents
module Ddr::Index
class QueryBuilder
def self.build
builder = new
yield builder
builder.query
end
def initialize
@q = nil
@fields = [ ]
@filters = [ ]
@sort = [ ]
@rows = nil
end
def query
Query.new.tap do |qry|
instance_variables.each do |var|
qry.instance_variable_set(var, instance_variable_get(var))
end
end
end
def id(pid)
q QueryClause.id(pid)
limit 1
end
def filter(*fltrs)
@filters.push *fltrs
self
end
def fields(*flds)
@fields.push *flds
self
end
def limit(num)
@rows = num
self
end
def order_by(field, order)
@sort << [field, order].join(" ")
self
end
def asc(field)
order_by field, "asc"
end
def desc(field)
order_by field, "desc"
end
def q(q)
@q = q
self
end
protected
def method_missing(name, *args, &block)
if Filter.respond_to? name
return filter Filter.send(name, *args, &block)
end
super
end
end
end
Version data entries
19 entries across 19 versions & 1 rubygems