Class: Relix::MultiIndex
- Inherits:
-
Index
- Object
- Index
- Relix::MultiIndex
show all
- Includes:
- Ordering
- Defined in:
- lib/relix/indexes/multi.rb
Instance Attribute Summary
Attributes inherited from Index
#model_name
Instance Method Summary
collapse
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#deindex(r, pk, old_value) ⇒ Object
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#deindex_value(r, old_value) ⇒ Object
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#eq(r, value, options = {}) ⇒ Object
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#index(r, pk, object, value, old_value) ⇒ Object
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#index_value(r, value) ⇒ Object
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#index_values? ⇒ Boolean
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#key_for(value) ⇒ Object
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#position(r, pk, value) ⇒ Object
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#values(r) ⇒ Object
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#values_key ⇒ Object
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#watch_keys(*values) ⇒ Object
Methods inherited from Index
#attribute_immutable?, compact_kind, #create_query_clause, #filter, #initialize, kind, #name, #normalize, #query, #read, #read_normalized, #watch
Constructor Details
This class inherits a constructor from Relix::Index
Instance Method Details
#deindex(r, pk, old_value) ⇒ Object
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# File 'lib/relix/indexes/multi.rb', line 18
def deindex(r, pk, old_value)
r.zrem(key_for(old_value), pk)
deindex_value(r, old_value) if index_values?
end
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#deindex_value(r, old_value) ⇒ Object
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# File 'lib/relix/indexes/multi.rb', line 54
def deindex_value(r, old_value)
r.eval %(
if(redis.call("ZCARD", KEYS[2]) == 0) then
return redis.call("SREM", KEYS[1], ARGV[1])
end
return "OK"
), [values_key, key_for(old_value)], [old_value]
end
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#eq(r, value, options = {}) ⇒ Object
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# File 'lib/relix/indexes/multi.rb', line 23
def eq(r, value, options={})
r.zrange(key_for(value), *range_from_options(r, options, value))
end
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#index(r, pk, object, value, old_value) ⇒ Object
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# File 'lib/relix/indexes/multi.rb', line 11
def index(r, pk, object, value, old_value)
r.zadd(key_for(value), score(object, value), pk)
index_value(r, value) if index_values?
deindex(r, pk, old_value)
end
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#index_value(r, value) ⇒ Object
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# File 'lib/relix/indexes/multi.rb', line 50
def index_value(r, value)
r.sadd(values_key, value)
end
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#index_values? ⇒ Boolean
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# File 'lib/relix/indexes/multi.rb', line 37
def index_values?
@options[:index_values]
end
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#key_for(value) ⇒ Object
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# File 'lib/relix/indexes/multi.rb', line 33
def key_for(value)
@set.keyer.component(name, value)
end
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#position(r, pk, value) ⇒ Object
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# File 'lib/relix/indexes/multi.rb', line 27
def position(r, pk, value)
position = r.zrank(key_for(value), pk)
raise MissingIndexValueError, "Cannot find key #{pk} in index for #{value}" unless position
position
end
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#values(r) ⇒ Object
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# File 'lib/relix/indexes/multi.rb', line 45
def values(r)
raise ValuesNotIndexedError.new("Value indexing not enabled for #{name}.") unless index_values?
r.smembers(values_key)
end
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#values_key ⇒ Object
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# File 'lib/relix/indexes/multi.rb', line 41
def values_key
@set.keyer.component(name, "_values")
end
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#watch_keys(*values) ⇒ Object
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# File 'lib/relix/indexes/multi.rb', line 5
def watch_keys(*values)
keys = values.compact.map { |v| key_for(v) }
keys << values_key if index_values?
keys
end
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