Class: Sequel::TinyTDS::Dataset

Inherits:
Dataset show all
Includes:
MSSQL::DatasetMethods
Defined in:
lib/sequel/adapters/tinytds.rb

Defined Under Namespace

Modules: ArgumentMapper

Constant Summary collapse

PreparedStatementMethods = 
prepared_statements_module("sql = prepared_sql; opts = Hash[opts]; opts[:arguments] = bind_arguments", ArgumentMapper)

Constants included from MSSQL::DatasetMethods

MSSQL::DatasetMethods::CONSTANT_MAP, MSSQL::DatasetMethods::EXTRACT_MAP, MSSQL::DatasetMethods::LIMIT_ALL

Constants inherited from Dataset

Dataset::ACTION_METHODS, Dataset::BITWISE_METHOD_MAP, Dataset::COLUMNS_CLONE_OPTIONS, Dataset::COLUMN_CHANGE_OPTS, Dataset::CONDITIONED_JOIN_TYPES, Dataset::COUNT_FROM_SELF_OPTS, Dataset::COUNT_OF_ALL_AS_COUNT, Dataset::COUNT_SELECT, Dataset::DEFAULT, Dataset::DEFAULT_PREPARED_STATEMENT_MODULE_METHODS, Dataset::EMPTY_ARRAY, Dataset::EMPTY_SELECT, Dataset::EXISTS, Dataset::EXTENSIONS, Dataset::IS_LITERALS, Dataset::IS_OPERATORS, Dataset::JOIN_METHODS, Dataset::LIKE_OPERATORS, Dataset::NON_SQL_OPTIONS, Dataset::N_ARITY_OPERATORS, Dataset::OPTS, Dataset::PREPARED_ARG_PLACEHOLDER, Dataset::PREPARED_STATEMENT_MODULE_CODE, Dataset::QUALIFY_KEYS, Dataset::QUERY_METHODS, Dataset::REGEXP_OPERATORS, Dataset::TRUE_FREEZE, Dataset::TWO_ARITY_OPERATORS, Dataset::UNCONDITIONED_JOIN_TYPES, Dataset::WILDCARD

Instance Attribute Summary

Attributes inherited from Dataset

#db, #opts

Instance Method Summary collapse

Methods included from MSSQL::DatasetMethods

#complex_expression_sql_append, #constant_sql_append, #cross_apply, #disable_insert_output, #escape_like, #full_text_search, #insert_select, #insert_select_sql, #into, #mssql_unicode_strings, #nolock, #outer_apply, #output, #quoted_identifier_append, #returning, #select_sql, #server_version, #supports_cte?, #supports_group_cube?, #supports_group_rollup?, #supports_grouping_sets?, #supports_insert_select?, #supports_intersect_except?, #supports_is_true?, #supports_join_using?, #supports_modifying_joins?, #supports_multiple_column_in?, #supports_offsets_in_correlated_subqueries?, #supports_output_clause?, #supports_returning?, #supports_skip_locked?, #supports_where_true?, #supports_window_functions?, #with_mssql_unicode_strings

Methods included from EmulateOffsetWithRowNumber

#empty?, #select_sql, #supports_offsets_in_correlated_subqueries?

Methods inherited from Dataset

#<<, #==, #[], #add_graph_aliases, #aliased_expression_sql_append, #all, #array_sql_append, #as_hash, #avg, #bind, #boolean_constant_sql_append, #call, #case_expression_sql_append, #cast_sql_append, clause_methods, #clone, #column_all_sql_append, #columns, #columns!, #complex_expression_sql_append, #constant_sql_append, #count, #current_datetime, def_sql_method, #delayed_evaluation_sql_append, #delete, #distinct, #dup, #each, #each_server, #empty?, #eql?, #escape_like, #except, #exclude, #exclude_having, #exists, #extension, #filter, #first, #first!, #first_source, #first_source_alias, #first_source_table, #for_update, #freeze, #from, #from_self, #frozen?, #function_sql_append, #get, #graph, #grep, #group, #group_and_count, #group_append, #group_by, #group_cube, #group_rollup, #grouping_sets, #hash, #having, #import, #initialize, #insert, #insert_sql, #inspect, #intersect, #invert, #join, #join_clause_sql_append, #join_on_clause_sql_append, #join_table, #join_using_clause_sql_append, #joined_dataset?, #last, #lateral, #limit, #literal_append, #lock_style, #map, #max, #min, #multi_insert, #multi_insert_sql, #naked, #negative_boolean_constant_sql_append, #offset, #or, #order, #order_append, #order_by, #order_more, #order_prepend, #ordered_expression_sql_append, #paged_each, #placeholder_literal_string_sql_append, #prepare, #provides_accurate_rows_matched?, #qualified_identifier_sql_append, #qualify, #quote_identifier_append, #quote_identifiers?, #quote_schema_table_append, #quoted_identifier_append, #recursive_cte_requires_column_aliases?, register_extension, #requires_placeholder_type_specifiers?, #requires_sql_standard_datetimes?, #returning, #reverse, #reverse_order, #row_number_column, #row_proc, #schema_and_table, #select, #select_all, #select_append, #select_group, #select_hash, #select_hash_groups, #select_map, #select_more, #select_order_map, #server, #server?, #set_graph_aliases, #single_record, #single_record!, #single_value, #single_value!, #skip_limit_check, #skip_locked, #split_alias, #split_qualifiers, #sql, #subscript_sql_append, #sum, #supports_cte?, #supports_cte_in_subqueries?, #supports_derived_column_lists?, #supports_distinct_on?, #supports_group_cube?, #supports_group_rollup?, #supports_grouping_sets?, #supports_insert_select?, #supports_intersect_except?, #supports_intersect_except_all?, #supports_is_true?, #supports_join_using?, #supports_lateral_subqueries?, #supports_limits_in_correlated_subqueries?, #supports_modifying_joins?, #supports_multiple_column_in?, #supports_offsets_in_correlated_subqueries?, #supports_ordered_distinct_on?, #supports_regexp?, #supports_replace?, #supports_returning?, #supports_select_all_and_column?, #supports_skip_locked?, #supports_timestamp_timezones?, #supports_timestamp_usecs?, #supports_where_true?, #supports_window_functions?, #to_hash, #to_hash_groups, #truncate, #truncate_sql, #unfiltered, #ungraphed, #ungrouped, #union, #unlimited, #unordered, #unqualified_column_for, #unused_table_alias, #update, #update_sql, #where, #where_all, #where_each, #where_single_value, #window_sql_append, #with, #with_extend, #with_quote_identifiers, #with_recursive, #with_row_proc, #with_sql, #with_sql_all, #with_sql_delete, #with_sql_each, #with_sql_first, #with_sql_insert, #with_sql_single_value

Methods included from SQL::StringMethods

#ilike, #like

Methods included from SQL::OrderMethods

#asc, #desc

Methods included from SQL::NumericMethods

#+, #coerce

Methods included from SQL::ComplexExpressionMethods

#extract, #sql_boolean, #sql_number, #sql_string

Methods included from SQL::CastMethods

#cast, #cast_numeric, #cast_string

Methods included from SQL::BooleanMethods

#~

Methods included from SQL::AliasMethods

#as

Constructor Details

This class inherits a constructor from Sequel::Dataset

Instance Method Details

#fetch_rows(sql) ⇒ Object 



206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
 
# File 'lib/sequel/adapters/tinytds.rb', line 206

def fetch_rows(sql)
  execute(sql) do |result|
    # Mutating an array in the result is questionable, but supported
    # by tiny_tds developers (tiny_tds issue #57)
    columns = result.fields.map!{|c| output_identifier(c)}
    if columns.empty?
      args = []
      args << {:timezone=>:utc} if db.timezone == :utc
      cols = nil
      result.each(*args) do |r|
        unless cols
          cols = result.fields.map{|c| [c, output_identifier(c)]}
          self.columns = columns = cols.map(&:last)
        end
        h = {}
        cols.each do |s, sym|
          h[sym] = r[s]
        end
        yield h
      end
    else
      self.columns = columns
      if db.timezone == :utc
        result.each(:timezone=>:utc){|r| yield r}
      else
        result.each{|r| yield r}
      end
    end
  end
  self
end