Class: Baza::Database

Inherits:
Object
  • Object
show all
Includes:
DatabaseModelFunctionality
Defined in:
lib/baza/database.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Methods included from DatabaseModelFunctionality

#model_name, #to_model

Constructor Details

#initialize(args) ⇒ Database

Returns a new instance of Database.



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# File 'lib/baza/database.rb', line 6

def initialize(args)
  @changes = {}
  @db = args.fetch(:db)
  @driver = args.fetch(:driver)
  @name = args.fetch(:name)
  @name_was = @name
end

Instance Attribute Details

#db ⇒ Object (readonly)

Returns the value of attribute db.



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# File 'lib/baza/database.rb', line 4

def db
  @db
end

#driver ⇒ Object (readonly)

Returns the value of attribute driver.



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# File 'lib/baza/database.rb', line 4

def driver
  @driver
end

#name ⇒ Object

Returns the value of attribute name.



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# File 'lib/baza/database.rb', line 4

def name
  @name
end

Instance Method Details

#import_file!(path, args = {}) ⇒ Object 



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# File 'lib/baza/database.rb', line 14

def import_file!(path, args = {})
  File.open(path, "r") do |io|
    use do
      Baza::Commands::Importer.new({db: @db, io: io}.merge(args)).execute
    end
  end
end

#name_changed? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/baza/database.rb', line 27

def name_changed?
  @changes.key?(:name) && @changes.fetch(:name).to_s != name.to_s
end

#name_was ⇒ Object 



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# File 'lib/baza/database.rb', line 31

def name_was
  @changes[:name]
end

#save! ⇒ Object

Raises:



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# File 'lib/baza/database.rb', line 59

def save!
  raise Baza::Errors::NotImplemented
end

#table(name) ⇒ Object

Raises:



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# File 'lib/baza/database.rb', line 46

def table(name)
  table = tables(name: name).first
  raise Baza::Errors::TableNotFound unless table
  table
end

#table_exists?(name) ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/baza/database.rb', line 52

def table_exists?(name)
  table(name)
  true
rescue Baza::Errors::TableNotFound
  false
end

#tables(args = {}) ⇒ Object 



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# File 'lib/baza/database.rb', line 35

def tables(args = {})
  list_args = {database: name}
  list_args[:name] = args.fetch(:name) if args[:name]

  ArrayEnumerator.new do |yielder|
    @db.tables.list(list_args) do |table|
      yielder << table
    end
  end
end

#to_param ⇒ Object 



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# File 'lib/baza/database.rb', line 63

def to_param
  name
end

#use(&blk) ⇒ Object 



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# File 'lib/baza/database.rb', line 67

def use(&blk)
  @db.databases.with_database(name, &blk)
end