remove_columns

• Instance methods (130)
• add_belongs_to (>= v4.0.2)
• add_check_constraint (>= v6.1.3.1)
• add_column
• add_column_for_alter (>= v5.2.3)
• add_column_options!
• add_columns (>= v6.1.3.1)
• add_foreign_key (>= v4.2.1)
• add_index
• add_index_options (>= v3.1.0)
• add_index_sort_order (>= v3.2.1)
• add_options_for_index_columns (>= v5.1.7)
• add_order_by_for_associatio...
• add_reference (>= v4.0.2)
• add_timestamps
• add_timestamps_for_alter (>= v6.1.3.1)
• assume_migrated_upto_version
• build_add_column_definition (>= v7.1.3.2)
• build_change_column_default... (>= v7.1.3.2)
• build_create_index_definition (>= v7.1.3.2)
• build_create_join_table_def... (>= v7.1.3.2)
• build_create_table_definition (>= v7.1.3.2)
• bulk_change_table (>= v6.0.0)
• can_remove_index_by_name? (>= v5.0.0.1)
• change_column
• change_column_comment (>= v5.0.0.1)
• change_column_default
• change_column_default_for_a... (>= v7.1.3.2)
• change_column_null (>= v4.0.2)
• change_table
• change_table_comment (>= v5.0.0.1)
• check_constraint_exists? (>= v7.1.3.2)
• check_constraint_for (>= v6.1.3.1)
• check_constraint_for! (>= v6.1.3.1)
• check_constraint_name (>= v6.1.3.1)
• check_constraint_options (>= v6.1.3.1)
• check_constraints (>= v6.1.3.1)
• column_exists? (>= v3.0.0)
• column_options_keys (>= v5.1.7)
• columns
• columns_for_distinct (>= v4.0.2)
• columns_for_remove (>= v3.1.0)
• create_alter_table (>= v4.0.2)
• create_join_table (>= v4.0.2)
• create_schema_dumper (>= v5.2.3)
• create_table
• create_table_definition (>= v4.0.2)
• data_source_exists? (>= v4.2.7)
• data_sources (>= v4.2.7)
• data_source_sql (>= v5.1.7)
• distinct
• distinct_relation_for_prima... (>= v7.0.0)
• drop_join_table (>= v4.0.2)
• drop_table
• dump_schema_information
• expression_column_name? (>= v7.1.3.2)
• extract_foreign_key_action (>= v5.2.3)
• extract_new_comment_value (>= v6.0.0)
• extract_new_default_value (>= v5.0.0.1)
• extract_table_options! (>= v6.1.3.1)
• fetch_type_metadata (>= v5.2.3)
• foreign_key_column_for (>= v4.2.1)
• foreign_key_exists? (>= v5.0.0.1)
• foreign_key_for (>= v5.0.0.1)
• foreign_key_for! (>= v5.0.0.1)
• foreign_key_name (>= v4.2.1)
• foreign_key_options (>= v5.0.0.1)
• foreign_keys (>= v4.2.1)
• foreign_keys_enabled? (>= v7.1.3.2)
• generate_index_name (>= v7.1.3.2)
• index_algorithm (>= v6.1.3.1)
• index_column_names (>= v5.1.7)
• indexes (>= v5.1.7)
• index_exists?
• index_name
• index_name_exists? (>= v3.0.0)
• index_name_for_remove (>= v3.1.0)
• index_name_options (>= v5.0.0.1)
• initialize_internal_metadat... (>= v5.0.0.1)
• initialize_schema_information (<= v2.0.3)
• initialize_schema_migration...
• insert_versions_sql (>= v5.0.0.1)
• internal_string_options_for... (>= v5.0.0.1)
• max_index_name_size (>= v7.1.3.2)
• native_database_types
• options_for_index_columns (>= v5.2.3)
• options_include_default?
• primary_key (>= v5.0.0.1)
• quoted_columns_for_index
• quoted_scope (>= v5.1.7)
• reference_name_for_table (>= v7.1.3.2)
• remove_belongs_to (>= v4.0.2)
• remove_check_constraint (>= v6.1.3.1)
• remove_column
• remove_column_for_alter (>= v5.2.3)
• remove_columns
• remove_columns_for_alter (>= v5.2.3)
• remove_foreign_key (>= v4.2.1)
• remove_index
• remove_index!
• remove_reference (>= v4.0.2)
• remove_timestamps
• remove_timestamps_for_alter (>= v6.1.3.1)
• rename_column
• rename_column_indexes (>= v4.0.2)
• rename_column_sql (>= v6.1.3.1)
• rename_index
• rename_table
• rename_table_indexes (>= v4.0.2)
• schema_creation (>= v5.2.3)
• strip_table_name_prefix_and... (>= v6.0.0)
• structure_dump
• table_alias_for
• table_alias_length (<= v2.2.1)
• table_comment (>= v5.0.0.1)
• table_definition (>= v3.1.0)
• table_exists?
• table_options (>= v5.0.0.1)
• tables (>= v5.0.0.1)
• type_to_sql
• update_table_definition (>= v4.0.2)
• use_foreign_keys? (>= v7.1.3.2)
• validate_change_column_null... (>= v7.1.3.2)
• validate_create_table_options! (>= v7.1.3.2)
• validate_index_length! (>= v4.2.1)
• validate_table_length! (>= v7.1.3.2)
• valid_column_definition_opt... (>= v7.1.3.2)
• valid_primary_key_options (>= v7.1.3.2)
• valid_table_definition_options (>= v7.1.3.2)
• view_exists? (>= v5.0.0.1)
• views (>= v5.0.0.1)

= private
= protected