Module: Taps::Schema

Extended by:
Schema
Included in:
Schema
Defined in:
lib/taps/schema.rb

Instance Method Summary collapse

Instance Method Details

#dump(database_url) ⇒ Object 



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# File 'lib/taps/schema.rb', line 11

def dump(database_url)
  db = Sequel.connect(database_url)
  db.dump_schema_migration(:indexes => false)
end

#dump_table(database_url, table) ⇒ Object 



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# File 'lib/taps/schema.rb', line 16

def dump_table(database_url, table)
  table = table.to_sym
  Sequel.connect(database_url) do |db|
    <<END_MIG
Class.new(Sequel::Migration) do
def up
  #{db.dump_table_schema(table.identifier, :indexes => false)}
end

def down
  drop_table("#{table}") if @db.table_exists?("#{table}")
end
end
END_MIG
  end
end

#indexes(database_url) ⇒ Object 



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# File 'lib/taps/schema.rb', line 33

def indexes(database_url)
  db = Sequel.connect(database_url)
  db.dump_indexes_migration
end

#indexes_individual(database_url) ⇒ Object 



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# File 'lib/taps/schema.rb', line 38

def indexes_individual(database_url)
  idxs = {}
  Sequel.connect(database_url) do |db|
    tables = db.tables
    tables.each do |table|
      idxs[table] = db.send(:dump_table_indexes, table, :add_index, {}).split("\n")
    end
  end

  idxs.each do |table, indexes|
    idxs[table] = indexes.map do |idx|
      <<END_MIG
Class.new(Sequel::Migration) do
def up
  #{idx}
end
end
END_MIG
    end
  end
  idxs.to_json
end

#load(database_url, schema) ⇒ Object 



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# File 'lib/taps/schema.rb', line 61

def load(database_url, schema)
  Sequel.connect(database_url) do |db|
    klass = eval(schema)
    klass.apply(db, :down)
    klass.apply(db, :up)
  end
end

#load_indexes(database_url, indexes) ⇒ Object 



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# File 'lib/taps/schema.rb', line 69

def load_indexes(database_url, indexes)
  Sequel.connect(database_url) do |db|
    eval(indexes).apply(db, :up)
  end
end

#reset_db_sequences(database_url) ⇒ Object 



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# File 'lib/taps/schema.rb', line 75

def reset_db_sequences(database_url)
  db = Sequel.connect(database_url)
  return unless db.respond_to?(:reset_primary_key_sequence)
  db.tables.each do |table|
    db.reset_primary_key_sequence(table)
  end
end