Class: Prick::Database

Inherits:
Object
  • Object
show all
Defined in:
lib/prick/database.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(name, user) ⇒ Database

Returns a new instance of Database.



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# File 'lib/prick/database.rb', line 9

def initialize(name, user)
  @name = name
  @user = user
  @version = nil
end

Instance Attribute Details

#name ⇒ Object (readonly)

Returns the value of attribute name.



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

def name
  @name
end

#user ⇒ Object (readonly)

Returns the value of attribute user.



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# File 'lib/prick/database.rb', line 7

def user
  @user
end

Instance Method Details

#create ⇒ Object 



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# File 'lib/prick/database.rb', line 41

def create() Rdbms.create_database(name, owner: user) end

#drop ⇒ Object 



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# File 'lib/prick/database.rb', line 43

def drop() Rdbms.drop_database(name, fail: false); @version = nil end

#exist? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/prick/database.rb', line 40

def exist?() Rdbms.exist_database?(name) end

#load(file) ⇒ Object 



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

def load(file) Rdbms.load(name, file, user: user); @version = nil end

#loaded? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/prick/database.rb', line 45

def loaded?() !version.nil? end

#recreate ⇒ Object 



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# File 'lib/prick/database.rb', line 42

def recreate() drop if exist?; create; @version = nil end

#save(file) ⇒ Object 



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# File 'lib/prick/database.rb', line 48

def save(file) Rdbms.save(name, file); @version = nil end

#to_s ⇒ Object 



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# File 'lib/prick/database.rb', line 50

def to_s() name end

#version ⇒ Object 



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# File 'lib/prick/database.rb', line 15

def version
  @version ||= begin
      version = 
          if exist? && Rdbms.exist_table?(name, "prick", "versions")
            Rdbms.select(name, "select version from prick.versions")&.first&.first
          else
            nil
          end
      version && Version.new(version)
  end
end

#version=(version) ⇒ Object 



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

def version=(version)
  @version = version && Version.new(version)
  Rdbms.exec_sql(name, %(
    update prick.versions
    set major = '#{@version.major}',
        minor = '#{@version.minor}',
        patch = '#{@version.patch}',
        pre = '#{@version.pre}',
        version = '#{@version.to_s}'
  )) if @version
  @version
end