Module Sequel::Plugins::ModificationDetection::InstanceMethods
In: lib/sequel/plugins/modification_detection.rb

Methods

Public Instance methods

Recalculate the column value hashes after updating.

[Source]

    # File lib/sequel/plugins/modification_detection.rb, line 43
43:         def after_update
44:           super
45:           recalculate_values_hashes
46:         end

Calculate the column hash values if they haven‘t been already calculated.

[Source]

    # File lib/sequel/plugins/modification_detection.rb, line 49
49:         def calculate_values_hashes
50:           @values_hashes || recalculate_values_hashes
51:         end

Detect which columns have been modified by comparing the cached hash value to the hash of the current value.

[Source]

    # File lib/sequel/plugins/modification_detection.rb, line 55
55:         def changed_columns
56:           cc = super
57:           changed = []
58:           v = @values
59:           if vh = @values_hashes
60:             (vh.keys - cc).each{|c| changed << c unless v.has_key?(c) && vh[c] == v[c].hash}
61:           end
62:           cc + changed
63:         end

[Validate]