Class: Houcho::Database

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

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize ⇒ Database

Returns a new instance of Database.



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# File 'lib/houcho/database.rb', line 8

def initialize
  @handle = SQLite3::Database.new("#{Houcho::Config::APPROOT}/houcho.db")
  @handle.execute("PRAGMA foreign_keys = ON")
end

Instance Attribute Details

#handle ⇒ Object (readonly)

Returns the value of attribute handle.



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

def handle
  @handle
end

Instance Method Details

#create_tables ⇒ Object 



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# File 'lib/houcho/database.rb', line 13

def create_tables
  @handle.execute_batch <<-SQL
    CREATE TABLE IF NOT EXISTS role (
      id INTEGER NOT NULL PRIMARY KEY,
      name VARCHAR NOT NULL UNIQUE
    );

    CREATE TABLE IF NOT EXISTS host (
      id INTEGER NOT NULL PRIMARY KEY,
      name VARCHAR NOT NULL UNIQUE
    );

    CREATE TABLE IF NOT EXISTS role_host (
      role_id INTEGER NOT NULL,
      host_id INTEGER NOT NULL,
      UNIQUE(role_id, host_id),
      FOREIGN KEY (role_id) REFERENCES role (id) ON DELETE RESTRICT,
      FOREIGN KEY (host_id) REFERENCES host (id) ON DELETE RESTRICT
    );

    CREATE TABLE IF NOT EXISTS serverspec (
      id INTEGER NOT NULL PRIMARY KEY,
      name VARCHAR NOT NULL UNIQUE
    );

    CREATE TABLE IF NOT EXISTS role_serverspec (
      role_id INTEGER NOT NULL,
      serverspec_id INTEGER NOT NULL,
      UNIQUE(role_id, serverspec_id),
      FOREIGN KEY (role_id) REFERENCES role (id) ON DELETE RESTRICT,
      FOREIGN KEY (serverspec_id) REFERENCES serverspec (id) ON DELETE RESTRICT
    );

    CREATE TABLE IF NOT EXISTS script (
      id INTEGER NOT NULL PRIMARY KEY,
      name VARCHAR NOT NULL UNIQUE
    );

    CREATE TABLE IF NOT EXISTS role_script (
      role_id INTEGER NOT NULL,
      script_id INTEGER NOT NULL,
      UNIQUE(role_id, script_id),
      FOREIGN KEY (role_id) REFERENCES role (id) ON DELETE RESTRICT,
      FOREIGN KEY (script_id) REFERENCES script (id) ON DELETE RESTRICT
    );

    CREATE TABLE IF NOT EXISTS outerrole (
      id INTEGER NOT NULL PRIMARY KEY,
      name VARCHAR NOT NULL UNIQUE,
      data_source VARCHAR NOT NULL
    );

    CREATE TABLE IF NOT EXISTS outerrole_host (
      outerrole_id INTEGER NOT NULL,
      host_id INTEGER NOT NULL,
      UNIQUE(outerrole_id, host_id),
      FOREIGN KEY (outerrole_id) REFERENCES outerrole (id) ON DELETE RESTRICT,
      FOREIGN KEY (host_id) REFERENCES host (id) ON DELETE RESTRICT
    );

    CREATE TABLE IF NOT EXISTS role_outerrole (
      role_id INTEGER NOT NULL,
      outerrole_id INTEGER NOT NULL,
      UNIQUE(role_id, outerrole_id),
      FOREIGN KEY (role_id) REFERENCES role (id) ON DELETE RESTRICT,
      FOREIGN KEY (outerrole_id) REFERENCES outerrole (id) ON DELETE RESTRICT
    );

    CREATE TABLE IF NOT EXISTS attribute (
      id INTEGER NOT NULL PRIMARY KEY,
      name VARCHAR NOT NULL UNIQUE
    );

    CREATE TABLE IF NOT EXISTS attribute_value (
      id INTEGER NOT NULL PRIMARY KEY,
      attr_id INTEGER NOT NULL,
      element_type INTEGER NOT NULL,
      element_id INTEGER NOT NULL,
      value VARCHAR NOT NULL,
      COMMENT "element_type => {0:role, 1:outerrole, 2:host}",
      UNIQUE(attr_id, element_type, element_id),
      FOREIGN KEY (attr_id) REFERENCES attribute (id) ON DELETE RESTRICT
    );
  SQL
end