Module: ActiveRecord::ConnectionAdapters::OracleEnhanced::StructureDump

Included in:
ActiveRecord::ConnectionAdapters::OracleEnhancedAdapter
Defined in:
lib/active_record/connection_adapters/oracle_enhanced/structure_dump.rb

Overview

:nodoc:

Constant Summary collapse

STATEMENT_TOKEN =

Statements separator used in structure dump to allow loading of structure dump also with SQL*Plus

"\n\n/\n\n"

Instance Method Summary collapse

Instance Method Details

#execute_structure_dump(string) ⇒ Object 



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# File 'lib/active_record/connection_adapters/oracle_enhanced/structure_dump.rb', line 316

def execute_structure_dump(string)
  string.split(STATEMENT_TOKEN).each do |ddl|
    execute(ddl) unless ddl.blank?
  end
end

#foreign_key_definition(to_table, options = {}) ⇒ Object

:nodoc:



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# File 'lib/active_record/connection_adapters/oracle_enhanced/structure_dump.rb', line 193

def foreign_key_definition(to_table, options = {}) # :nodoc:
  column_sql = quote_column_name(options[:column] || "#{to_table.to_s.singularize}_id")
  references = options[:references] ? options[:references].first : nil
  references_sql = quote_column_name(options[:primary_key] || references || "id")

  sql = "FOREIGN KEY (#{column_sql}) REFERENCES #{quote_table_name(to_table)}(#{references_sql})"

  case options[:dependent]
  when :nullify
    sql << " ON DELETE SET NULL"
  when :delete
    sql << " ON DELETE CASCADE"
  end
  sql
end

#full_drop(preserve_tables = false) ⇒ Object

:nodoc:



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# File 'lib/active_record/connection_adapters/oracle_enhanced/structure_dump.rb', line 303

def full_drop(preserve_tables = false) # :nodoc:
  s = preserve_tables ? [] : [structure_drop]
  s << temp_table_drop if preserve_tables
  s << drop_sql_for_feature("view")
  s << drop_sql_for_feature("materialized view")
  s << drop_sql_for_feature("synonym")
  s << drop_sql_for_feature("type")
  s << drop_sql_for_object("package")
  s << drop_sql_for_object("function")
  s << drop_sql_for_object("procedure")
  s.join
end

#structure_drop ⇒ Object

:nodoc:



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# File 'lib/active_record/connection_adapters/oracle_enhanced/structure_dump.rb', line 268

def structure_drop # :nodoc:
  sequences = select_values("    SELECT/*+ OPTIMIZER_FEATURES_ENABLE('11.2.0.2') */\n    sequence_name FROM all_sequences where sequence_owner = SYS_CONTEXT('userenv', 'current_schema') ORDER BY 1\n  SQL\n  statements = sequences.map do |seq|\n    \"DROP SEQUENCE \\\"\#{seq}\\\"\"\n  end\n  tables = select_values(<<~SQL.squish, \"SCHEMA\")\n    SELECT /*+ OPTIMIZER_FEATURES_ENABLE('11.2.0.2') */ table_name from all_tables t\n    WHERE owner = SYS_CONTEXT('userenv', 'current_schema') AND secondary = 'N'\n    AND NOT EXISTS (SELECT mv.mview_name FROM all_mviews mv\n                    WHERE mv.owner = t.owner AND mv.mview_name = t.table_name)\n    AND NOT EXISTS (SELECT mvl.log_table FROM all_mview_logs mvl\n                    WHERE mvl.log_owner = t.owner AND mvl.log_table = t.table_name)\n    ORDER BY 1\n  SQL\n  tables.each do |table|\n    statements << \"DROP TABLE \\\"\#{table}\\\" CASCADE CONSTRAINTS\"\n  end\n  join_with_statement_token(statements)\nend\n".squish, "SCHEMA")

#structure_dump ⇒ Object

:nodoc:



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# File 'lib/active_record/connection_adapters/oracle_enhanced/structure_dump.rb', line 10

def structure_dump # :nodoc:
  sequences = select("    SELECT /*+ OPTIMIZER_FEATURES_ENABLE('11.2.0.2') */\n    sequence_name, min_value, max_value, increment_by, order_flag, cycle_flag\n    FROM all_sequences\n    where sequence_owner = SYS_CONTEXT('userenv', 'current_schema') ORDER BY 1\n  SQL\n\n  structure = sequences.map do |result|\n    \"CREATE SEQUENCE \#{quote_table_name(result[\"sequence_name\"])} MINVALUE \#{result[\"min_value\"]} MAXVALUE \#{result[\"max_value\"]} INCREMENT BY \#{result[\"increment_by\"]} \#{result[\"order_flag\"] == 'Y' ? \"ORDER\" : \"NOORDER\"} \#{result[\"cycle_flag\"] == 'Y' ? \"CYCLE\" : \"NOCYCLE\"}\"\n  end\n  tables = select_values(<<~SQL.squish, \"SCHEMA\")\n    SELECT /*+ OPTIMIZER_FEATURES_ENABLE('11.2.0.2') */ table_name FROM all_tables t\n    WHERE owner = SYS_CONTEXT('userenv', 'current_schema') AND secondary = 'N'\n    AND NOT EXISTS (SELECT mv.mview_name FROM all_mviews mv\n                    WHERE mv.owner = t.owner AND mv.mview_name = t.table_name)\n    AND NOT EXISTS (SELECT mvl.log_table FROM all_mview_logs mvl\n                    WHERE mvl.log_owner = t.owner AND mvl.log_table = t.table_name)\n    ORDER BY 1\n  SQL\n  tables.each do |table_name|\n    virtual_columns = virtual_columns_for(table_name) if supports_virtual_columns?\n    ddl = +\"CREATE\#{ ' GLOBAL TEMPORARY' if temporary_table?(table_name)} TABLE \\\"\#{table_name}\\\" (\\n\"\n    columns = select_all(<<~SQL.squish, \"SCHEMA\", [bind_string(\"table_name\", table_name)])\n      SELECT /*+ OPTIMIZER_FEATURES_ENABLE('11.2.0.2') */ column_name, data_type, data_length, char_used, char_length,\n      data_precision, data_scale, data_default, nullable\n      FROM all_tab_columns\n      WHERE table_name = :table_name\n      AND owner = SYS_CONTEXT('userenv', 'current_schema')\n      ORDER BY column_id\n    SQL\n    cols = columns.map do |row|\n      if (v = virtual_columns.find { |col| col[\"column_name\"] == row[\"column_name\"] })\n        structure_dump_virtual_column(row, v[\"data_default\"])\n      else\n        structure_dump_column(row)\n      end\n    end\n    ddl << cols.map { |col| \" \#{col}\" }.join(\",\\n\")\n    ddl << structure_dump_primary_key(table_name)\n    ddl << \"\\n)\"\n    structure << ddl\n    structure << structure_dump_indexes(table_name)\n    structure << structure_dump_unique_keys(table_name)\n    structure << structure_dump_table_comments(table_name)\n    structure << structure_dump_column_comments(table_name)\n  end\n\n  join_with_statement_token(structure) <<\n    structure_dump_fk_constraints <<\n    structure_dump_views\nend\n".squish, "SCHEMA")

#structure_dump_column(column) ⇒ Object

:nodoc:



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# File 'lib/active_record/connection_adapters/oracle_enhanced/structure_dump.rb', line 63

def structure_dump_column(column) # :nodoc:
  col = +"\"#{column['column_name']}\" #{column['data_type']}"
  if (column["data_type"] == "NUMBER") && !column["data_precision"].nil?
    col << "(#{column['data_precision'].to_i}"
    col << ",#{column['data_scale'].to_i}" if !column["data_scale"].nil?
    col << ")"
  elsif column["data_type"].include?("CHAR") || column["data_type"] == "RAW"
    length = column["char_used"] == "C" ? column["char_length"].to_i : column["data_length"].to_i
    col << "(#{length})"
  end
  col << " DEFAULT #{column['data_default']}" if !column["data_default"].nil?
  col << " NOT NULL" if column["nullable"] == "N"
  col
end

#structure_dump_column_comments(table_name) ⇒ Object 



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# File 'lib/active_record/connection_adapters/oracle_enhanced/structure_dump.rb', line 175

def structure_dump_column_comments(table_name)
  comments = []
  columns = select_values("    SELECT /*+ OPTIMIZER_FEATURES_ENABLE('11.2.0.2') */ column_name FROM all_tab_columns\n    WHERE owner = SYS_CONTEXT('userenv', 'current_schema')\n    AND table_name = :table_name ORDER BY column_id\n  SQL\n\n  columns.each do |column|\n    comment = column_comment(table_name, column)\n    unless comment.nil?\n      comments << \"COMMENT ON COLUMN \#{quote_table_name(table_name)}.\#{quote_column_name(column)} IS '\#{quote_string(comment)}'\"\n    end\n  end\n\n  join_with_statement_token(comments)\nend\n".squish, "SCHEMA", [bind_string("table_name", table_name)])

#structure_dump_db_stored_code ⇒ Object

Extract all stored procedures, packages, synonyms.



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# File 'lib/active_record/connection_adapters/oracle_enhanced/structure_dump.rb', line 210

def structure_dump_db_stored_code # :nodoc:
  structure = []
  all_source = select_all("    SELECT /*+ OPTIMIZER_FEATURES_ENABLE('11.2.0.2') */ DISTINCT name, type\n    FROM all_source\n    WHERE type IN ('PROCEDURE', 'PACKAGE', 'PACKAGE BODY', 'FUNCTION', 'TRIGGER', 'TYPE')\n    AND name NOT LIKE 'BIN$%'\n    AND owner = SYS_CONTEXT('userenv', 'current_schema') ORDER BY type\n  SQL\n  all_source.each do |source|\n    ddl = +\"CREATE OR REPLACE   \\n\"\n    texts = select_all(<<~SQL.squish, \"all source at structure dump\", [bind_string(\"source_name\", source[\"name\"]), bind_string(\"source_type\", source[\"type\"])])\n      SELECT /*+ OPTIMIZER_FEATURES_ENABLE('11.2.0.2') */ text\n      FROM all_source\n      WHERE name = :source_name\n      AND type = :source_type\n      AND owner = SYS_CONTEXT('userenv', 'current_schema')\n      ORDER BY line\n    SQL\n    texts.each do |row|\n      ddl << row[\"text\"]\n    end\n    ddl << \";\" unless ddl.strip[-1, 1] == \";\"\n    structure << ddl\n  end\n\n  # export synonyms\n  structure << structure_dump_synonyms\n\n  join_with_statement_token(structure)\nend\n".squish, "SCHEMA")

#structure_dump_fk_constraints ⇒ Object

:nodoc:



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# File 'lib/active_record/connection_adapters/oracle_enhanced/structure_dump.rb', line 148

def structure_dump_fk_constraints # :nodoc:
  foreign_keys = select_all("    SELECT /*+ OPTIMIZER_FEATURES_ENABLE('11.2.0.2') */ table_name FROM all_tables\n    WHERE owner = SYS_CONTEXT('userenv', 'current_schema') ORDER BY 1\n  SQL\n  fks = foreign_keys.map do |table|\n    if respond_to?(:foreign_keys) && (foreign_keys = foreign_keys(table[\"table_name\"])).any?\n      foreign_keys.map do |fk|\n        sql = +\"ALTER TABLE \#{quote_table_name(fk.from_table)} ADD CONSTRAINT \#{quote_column_name(fk.options[:name])} \"\n        sql << \"\#{foreign_key_definition(fk.to_table, fk.options)}\"\n      end\n    end\n  end.flatten.compact\n  join_with_statement_token(fks)\nend\n".squish, "SCHEMA")

#structure_dump_indexes(table_name) ⇒ Object

:nodoc:



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# File 'lib/active_record/connection_adapters/oracle_enhanced/structure_dump.rb', line 132

def structure_dump_indexes(table_name) # :nodoc:
  indexes(table_name).map do |options|
    column_names = options.columns
    options = { name: options.name, unique: options.unique }
    index_name = index_name(table_name, column: column_names)
    if Hash === options # legacy support, since this param was a string
      index_type = options[:unique] ? "UNIQUE" : ""
      index_name = options[:name] || index_name
    else
      index_type = options
    end
    quoted_column_names = column_names.map { |e| quote_column_name_or_expression(e) }.join(", ")
    "CREATE #{index_type} INDEX #{quote_column_name(index_name)} ON #{quote_table_name(table_name)} (#{quoted_column_names})"
  end
end

#structure_dump_primary_key(table) ⇒ Object

:nodoc:



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# File 'lib/active_record/connection_adapters/oracle_enhanced/structure_dump.rb', line 92

def structure_dump_primary_key(table) # :nodoc:
  opts = { name: "", cols: [] }
  pks = select_all("    SELECT /*+ OPTIMIZER_FEATURES_ENABLE('11.2.0.2') */ a.constraint_name, a.column_name, a.position\n      FROM all_cons_columns a\n      JOIN all_constraints c\n        ON a.constraint_name = c.constraint_name\n     WHERE c.table_name = '\#{table.upcase}'\n       AND c.constraint_type = 'P'\n       AND a.owner = c.owner\n       AND c.owner = SYS_CONTEXT('userenv', 'current_schema')\n  SQL\n  pks.each do |row|\n    opts[:name] = row[\"constraint_name\"]\n    opts[:cols][row[\"position\"] - 1] = row[\"column_name\"]\n  end\n  opts[:cols].length > 0 ? \",\\n CONSTRAINT \#{opts[:name]} PRIMARY KEY (\#{opts[:cols].join(',')})\" : \"\"\nend\n".squish, "SCHEMA")

#structure_dump_synonyms ⇒ Object

:nodoc:



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# File 'lib/active_record/connection_adapters/oracle_enhanced/structure_dump.rb', line 254

def structure_dump_synonyms # :nodoc:
  structure = []
  synonyms = select_all("    SELECT /*+ OPTIMIZER_FEATURES_ENABLE('11.2.0.2') */ owner, synonym_name, table_name, table_owner\n    FROM all_synonyms\n    WHERE owner = SYS_CONTEXT('userenv', 'current_schema')\n  SQL\n  synonyms.each do |synonym|\n    structure << \"CREATE OR REPLACE \#{synonym['owner'] == 'PUBLIC' ? 'PUBLIC' : '' } SYNONYM \#{synonym['synonym_name']}\n    FOR \#{synonym['table_owner']}.\#{synonym['table_name']}\"\n  end\n  join_with_statement_token(structure)\nend\n".squish, "SCHEMA")

#structure_dump_table_comments(table_name) ⇒ Object 



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# File 'lib/active_record/connection_adapters/oracle_enhanced/structure_dump.rb', line 164

def structure_dump_table_comments(table_name)
  comments = []
  comment = table_comment(table_name)

  unless comment.nil?
    comments << "COMMENT ON TABLE #{quote_table_name(table_name)} IS '#{quote_string(comment)}'"
  end

  join_with_statement_token(comments)
end

#structure_dump_unique_keys(table) ⇒ Object

:nodoc:



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# File 'lib/active_record/connection_adapters/oracle_enhanced/structure_dump.rb', line 111

def structure_dump_unique_keys(table) # :nodoc:
  keys = {}
  uks = select_all("    SELECT /*+ OPTIMIZER_FEATURES_ENABLE('11.2.0.2') */ a.constraint_name, a.column_name, a.position\n      FROM all_cons_columns a\n      JOIN all_constraints c\n        ON a.constraint_name = c.constraint_name\n     WHERE c.table_name = '\#{table.upcase}'\n       AND c.constraint_type = 'U'\n       AND a.owner = c.owner\n       AND c.owner = SYS_CONTEXT('userenv', 'current_schema')\n  SQL\n  uks.each do |uk|\n    keys[uk[\"constraint_name\"]] ||= []\n    keys[uk[\"constraint_name\"]][uk[\"position\"] - 1] = uk[\"column_name\"]\n  end\n  keys.map do |k, v|\n    \"ALTER TABLE \#{table.upcase} ADD CONSTRAINT \#{k} UNIQUE (\#{v.join(',')})\"\n  end\nend\n".squish, "SCHEMA")

#structure_dump_views ⇒ Object

:nodoc:



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# File 'lib/active_record/connection_adapters/oracle_enhanced/structure_dump.rb', line 242

def structure_dump_views # :nodoc:
  structure = []
  views = select_all("    SELECT /*+ OPTIMIZER_FEATURES_ENABLE('11.2.0.2') */ view_name, text FROM all_views\n    WHERE owner = SYS_CONTEXT('userenv', 'current_schema') ORDER BY view_name ASC\n  SQL\n  views.each do |view|\n    structure << \"CREATE OR REPLACE FORCE VIEW \#{view['view_name']} AS\\n \#{view['text']}\"\n  end\n  join_with_statement_token(structure)\nend\n".squish, "SCHEMA")

#structure_dump_virtual_column(column, data_default) ⇒ Object

:nodoc:



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# File 'lib/active_record/connection_adapters/oracle_enhanced/structure_dump.rb', line 78

def structure_dump_virtual_column(column, data_default) # :nodoc:
  data_default = data_default.delete('"')
  col = +"\"#{column['column_name']}\" #{column['data_type']}"
  if (column["data_type"] == "NUMBER") && !column["data_precision"].nil?
    col << "(#{column['data_precision'].to_i}"
    col << ",#{column['data_scale'].to_i}" if !column["data_scale"].nil?
    col << ")"
  elsif column["data_type"].include?("CHAR") || column["data_type"] == "RAW"
    length = column["char_used"] == "C" ? column["char_length"].to_i : column["data_length"].to_i
    col << "(#{length})"
  end
  col << " GENERATED ALWAYS AS (#{data_default}) VIRTUAL"
end

#temp_table_drop ⇒ Object

:nodoc:



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# File 'lib/active_record/connection_adapters/oracle_enhanced/structure_dump.rb', line 291

def temp_table_drop # :nodoc:
  temporary_tables = select_values("    SELECT /*+ OPTIMIZER_FEATURES_ENABLE('11.2.0.2') */ table_name FROM all_tables\n    WHERE owner = SYS_CONTEXT('userenv', 'current_schema')\n    AND secondary = 'N' AND temporary = 'Y' ORDER BY 1\n  SQL\n  statements = temporary_tables.map do |table|\n    \"DROP TABLE \\\"\#{table}\\\" CASCADE CONSTRAINTS\"\n  end\n  join_with_statement_token(statements)\nend\n".squish, "SCHEMA")