RSpec
Ruby on Rails
Ruby
method
column_exists?
v7.0.0 -
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new
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belongs_to
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change
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change_default
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change_null
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check_constraint
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check_constraint_exists?
(>= v7.1.3.2)
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column
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column_exists?
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foreign_key
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foreign_key_exists?
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index
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index_exists?
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raise_on_if_exist_options
(>= v7.1.3.2)
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references
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remove
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remove_belongs_to
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remove_check_constraint
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remove_foreign_key
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remove_index
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remove_references
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remove_timestamps
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rename
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rename_index
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timestamps
= private
= protected
column_exists?(column_name, type = nil, **options)
public
Checks to see if a column exists.
t.string(:name) unless t.column_exists?(:name, :string)
See {connection.column_exists?}[rdoc-ref:SchemaStatements#column_exists?]
