Class: DataMapper::Adapters::Sphinx::Attribute

Inherits:
Property
  • Object
show all
Defined in:
lib/dm-sphinx-adapter/attribute.rb

Overview

Sphinx attribute definition.

You must declare attributes as such if you want to use them for sorting or conditions.

Notes

The following primatives will be used as sql_attr_* types. Some liberty has been taken to accommodate for as many DM primitives as possible.

TrueClass

sql_attr_bool

String

sql_attr_str2ordinal

DataMapper::Types::Text

sql_attr_str2ordinal

Float

sql_attr_float

Integer

sql_attr_uint

BigDecimal

sql_attr_float

DateTime

sql_attr_timestamp

Date

sql_attr_timestamp

Time

sql_attr_timestamp

DataMapper::Types::Serial

sql_attr_uint

Constant Summary collapse

TYPES =

DataMapper types supported as Sphinx attributes.

[
  TrueClass,                # sql_attr_bool
  String,                   # sql_attr_str2ordinal
  DataMapper::Types::Text,  # sql_attr_str2ordinal
  Float,                    # sql_attr_float
  Integer,                  # sql_attr_uint
  BigDecimal,               # sql_attr_float
  DateTime,                 # sql_attr_timestamp
  Date,                     # sql_attr_timestamp
  Time,                     # sql_attr_timestamp
  # Object,
  # Class,
  # DataMapper::Types::Discriminator,
  DataMapper::Types::Serial # sql_attr_uint
]

Instance Method Summary collapse

Instance Method Details

#filter(value, inclusive = true) ⇒ Object

Create a riddle client filter from a value.

Parameters

value<Object>

The filter value to typecast and include/exclude.

inclusive<Boolean>

Include or exclude results matching the filter value. Default: inclusive (true).

Returns

Riddle::Client::Filter 


56
57
58
59
60
61
62
 
# File 'lib/dm-sphinx-adapter/attribute.rb', line 56

def filter(value, inclusive = true)
  # Riddle uses exclusive = false as the default which doesn't read well IMO. Nobody says "Yes I don't want
  # these values" you say "No I don't want these values".
  value = typecast(value)
  value = [value] unless value.quacks_like?([Array, Range])
  Riddle::Client::Filter.new(field, value, !inclusive)
end

#typecast(value) ⇒ Object

Typecasts the value into a sphinx primitive. Supports ranges or arrays of values.

Notes

Some loss of precision may occur when casting BigDecimal to Float.



68
69
70
71
72
73
74
75
76
77
78
 
# File 'lib/dm-sphinx-adapter/attribute.rb', line 68

def typecast(value)
  if    value.kind_of?(Range)   then Range.new(typecast(value.first), typecast(value.last))
  elsif value.kind_of?(Array)   then value.map{|v| typecast(v)}
  elsif primitive == BigDecimal then super(value).to_f
  elsif primitive == DateTime   then Time.parse(super(value).to_s).to_i
  elsif primitive == Date       then Time.parse(super(value).to_s).to_i
  elsif primitive == Time       then super(value).to_i
  else
    super(value) # Good luck
  end
end