Class: Relix::PrimaryKeyIndex

Inherits:
Index
  • Object
show all
Includes:
Ordering
Defined in:
lib/relix/indexes/primary_key.rb

Instance Attribute Summary

Attributes inherited from Index

#model_name

Instance Method Summary collapse

Methods inherited from Index

#attribute_immutable?, compact_kind, #create_query_clause, kind, #name, #normalize, #read, #read_normalized, #watch

Constructor Details

#initialize(set, base_name, accessor, options = {}) ⇒ PrimaryKeyIndex

Returns a new instance of PrimaryKeyIndex.



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# File 'lib/relix/indexes/primary_key.rb', line 5

def initialize(set, base_name, accessor, options={})
  options[:immutable_attribute] = true unless options.has_key?(:immutable_attribute)
  super
end

Instance Method Details

#all(r, options = {}) ⇒ Object 



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# File 'lib/relix/indexes/primary_key.rb', line 30

def all(r, options={})
  r.zrange(name, *range_from_options(r, options))
end

#deindex(r, pk, old_value) ⇒ Object 



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# File 'lib/relix/indexes/primary_key.rb', line 26

def deindex(r, pk, old_value)
  r.zrem(name, pk)
end

#eq(r, value, options) ⇒ Object 



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# File 'lib/relix/indexes/primary_key.rb', line 34

def eq(r, value, options)
  [value]
end

#filter(r, object, value) ⇒ Object 



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# File 'lib/relix/indexes/primary_key.rb', line 14

def filter(r, object, value)
  !r.zscore(name, value)
end

#index(r, pk, object, value, old_value, rank) ⇒ Object 



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# File 'lib/relix/indexes/primary_key.rb', line 22

def index(r, pk, object, value, old_value, rank)
  r.zadd(name, rank, pk)
end

#position(r, pk, value) ⇒ Object

Raises:



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# File 'lib/relix/indexes/primary_key.rb', line 38

def position(r, pk, value)
  position = r.zrank(name, pk)
  raise MissingIndexValueError, "Cannot find key #{pk} in index" unless position
  position
end

#query(r, value) ⇒ Object 



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# File 'lib/relix/indexes/primary_key.rb', line 18

def query(r, value)
  r.zcard(name)
end

#watch_keys(*values) ⇒ Object 



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# File 'lib/relix/indexes/primary_key.rb', line 10

def watch_keys(*values)
  name
end