Revision 1298:4f746d8966dd lib/plugins/awesome_nested_set
| lib/plugins/awesome_nested_set/lib/awesome_nested_set/awesome_nested_set.rb | ||
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| 413 | 413 |
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# on creation, set automatically lft and rgt to the end of the tree |
| 415 | 415 |
def set_default_left_and_right |
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highest_right_row = nested_set_scope(:order => "#{quoted_right_column_name} desc").find(:first, :limit => 1,:lock => true )
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highest_right_row = nested_set_scope(:order => "#{quoted_right_column_name} desc").limit(1).lock(true).first
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maxright = highest_right_row ? (highest_right_row[right_column_name] || 0) : 0 |
| 418 | 418 |
# adds the new node to the right of all existing nodes |
| 419 | 419 |
self[left_column_name] = maxright + 1 |
| ... | ... | |
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in_tenacious_transaction do |
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reload_nested_set |
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# select the rows in the model that extend past the deletion point and apply a lock |
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self.class.base_class.find(:all,
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:select => "id",
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:conditions => ["#{quoted_left_column_name} >= ?", left],
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:lock => true
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)
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self.class.base_class. |
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select("id").
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where("#{quoted_left_column_name} >= ?", left).
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lock(true).
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all
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| 451 | 451 |
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if acts_as_nested_set_options[:dependent] == :destroy |
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descendants.each do |model| |
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