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 29
29:       def columns
30:         @columns ||= db.dataset(@opts).columns
31:       end

Return 0 without sending a database query.

[Source]

    # File lib/sequel/extensions/null_dataset.rb, line 34
34:       def delete
35:         0
36:       end

Return self without sending a database query, never yielding.

[Source]

    # File lib/sequel/extensions/null_dataset.rb, line 39
39:       def each
40:         self
41:       end

Return nil without sending a database query, never yielding.

[Source]

    # File lib/sequel/extensions/null_dataset.rb, line 44
44:       def fetch_rows(sql)
45:         nil
46:       end

Return nil without sending a database query.

[Source]

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

Return nil without sending a database query.

[Source]

    # File lib/sequel/extensions/null_dataset.rb, line 54
54:       def truncate
55:         nil
56:       end

Return 0 without sending a database query.

[Source]

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

Protected Instance methods

Return nil without sending a database query.

[Source]

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

[Validate]