Module Sequel::Dataset::NullDataset
In: lib/sequel/extensions/null_dataset.rb

Methods

_import   columns   delete   each   fetch_rows   insert   truncate   update  

Public Instance methods

Create a new dataset from the dataset (which won‘t be nulled) to get the columns if they aren‘t already cached.

[Source]

    # File lib/sequel/extensions/null_dataset.rb, line 33
33:       def columns
34:         @columns ||= db.dataset(@opts).columns
35:       end

Return 0 without sending a database query.

[Source]

    # File lib/sequel/extensions/null_dataset.rb, line 38
38:       def delete
39:         0
40:       end

Return self without sending a database query, never yielding.

[Source]

    # File lib/sequel/extensions/null_dataset.rb, line 43
43:       def each
44:         self
45:       end

Return nil without sending a database query, never yielding.

[Source]

    # File lib/sequel/extensions/null_dataset.rb, line 48
48:       def fetch_rows(sql)
49:         nil
50:       end

Return nil without sending a database query.

[Source]

    # File lib/sequel/extensions/null_dataset.rb, line 53
53:       def insert(*)
54:         nil
55:       end

Return nil without sending a database query.

[Source]

    # File lib/sequel/extensions/null_dataset.rb, line 58
58:       def truncate
59:         nil
60:       end

Return 0 without sending a database query.

[Source]

    # File lib/sequel/extensions/null_dataset.rb, line 63
63:       def update(v={})
64:         0
65:       end

Protected Instance methods

Return nil without sending a database query.

[Source]

    # File lib/sequel/extensions/null_dataset.rb, line 70
70:       def _import(columns, values, opts)
71:         nil
72:       end

[Validate]