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Sequel::Dataset::NullDataset

Public Instance Methods

columns() click to toggle source

Create a new dataset from the dataset (which won’t be nulled) to get the columns if they aren’t already cached.

    # File lib/sequel/extensions/null_dataset.rb, line 29
29:       def columns
30:         @columns ||= db.dataset(@opts).columns
31:       end
delete() click to toggle source

Return 0 without sending a database query.

    # File lib/sequel/extensions/null_dataset.rb, line 34
34:       def delete
35:         0
36:       end
each() click to toggle source

Return self without sending a database query, never yielding.

    # File lib/sequel/extensions/null_dataset.rb, line 39
39:       def each
40:         self
41:       end
fetch_rows(sql) click to toggle source

Return nil without sending a database query, never yielding.

    # File lib/sequel/extensions/null_dataset.rb, line 44
44:       def fetch_rows(sql)
45:         nil
46:       end
insert(*) click to toggle source

Return nil without sending a database query.

    # File lib/sequel/extensions/null_dataset.rb, line 49
49:       def insert(*)
50:         nil
51:       end
truncate() click to toggle source

Return nil without sending a database query.

    # File lib/sequel/extensions/null_dataset.rb, line 54
54:       def truncate
55:         nil
56:       end
update(v={}) click to toggle source

Return 0 without sending a database query.

    # File lib/sequel/extensions/null_dataset.rb, line 59
59:       def update(v={})
60:         0
61:       end

Protected Instance Methods

_import(columns, values, opts) click to toggle source

Return nil without sending a database query.

    # File lib/sequel/extensions/null_dataset.rb, line 66
66:       def _import(columns, values, opts)
67:         nil
68:       end

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