Class: SiSU_DBI::SQL

Inherits:
Object
  • Object
show all
Defined in:
lib/sisu/dbi.rb

Instance Method Summary collapse

Constructor Details

#initialize(opt) ⇒ SQL

Returns a new instance of SQL.



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# File 'lib/sisu/dbi.rb', line 67

def initialize(opt)
  @opt=opt
  @db=SiSU_Env::InfoDb.new
  if @opt.act[:psql][:set]==:on \
  or @opt.act[:sqlite][:set]==:on
    @sql_type=if @opt.act[:psql][:set]==:on
      maintenance_check(@opt,__FILE__,__LINE__) if @opt.act[:maintenance][:set]==:on
      :pg
    elsif @opt.act[:psql][:set]==:on
      maintenance_check(@opt,__FILE__,__LINE__) if @opt.act[:maintenance][:set]==:on
      :pg
    elsif @opt.act[:sqlite][:set]==:on
      maintenance_check(@opt,__FILE__,__LINE__) if @opt.act[:maintenance][:set]==:on
      :sqlite
    elsif @opt.act[:sqlite][:set]==:on
      maintenance_check(@opt,__FILE__,__LINE__) if @opt.act[:maintenance][:set]==:on
      :sqlite
    else
      maintenance_check(@opt,__FILE__,__LINE__) if @opt.act[:maintenance][:set]==:on
      :sqlite
    end
    if    @sql_type==:pg    then SiSU_Env::Load.new('pg',true).prog
    elsif @sql_type==:sqlite then SiSU_Env::Load.new('sqlite3',true).prog
    end
  end
end

Instance Method Details

#connect ⇒ Object 



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# File 'lib/sisu/dbi.rb', line 141

def connect
  case @sql_type
  when :pg     then read_psql #read_pg
  when :sqlite then read_sqlite
  end
  SiSU_Screen::Ansi.new(
    @opt.act[:color_state][:set],
    "SQL DB #{@sql_type.upcase}",
    @opt.fno
  ).dbi_title unless @opt.act[:quiet][:set]==:on
  begin
    SiSU_DbDBI::Case.new(@opt,@conn,@sql_type).cases
  rescue
    SiSU_Errors::Rescued.new($!,$@,@cf,@opt.fns).location do
      __LINE__.to_s + ':' + __FILE__
    end
  ensure
  end
  begin
  rescue
    connect
  end
end

#maintenance_check(opt, file, line) ⇒ Object 



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# File 'lib/sisu/dbi.rb', line 93

def maintenance_check(opt,file,line)
  p opt.selections.str
  p "at #{file} #{line}"
end

#read_psql ⇒ Object 



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# File 'lib/sisu/dbi.rb', line 97

def read_psql
  begin
    begin
      require 'pg'
    rescue LoadError
      SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).
        error('pg NOT FOUND (LoadError)')
    end
    @conn=@db.psql.conn_pg
  rescue
    if @opt.act[:psql_create][:set]==:on
      cX=SiSU_Screen::Ansi.new(@opt.act[:color_state][:set]).cX
      puts <<-WOK
manually create the database: "#{cX.green}#{@db.db}#{cX.off}" if it does not yet exist
  #{cX.yellow}createdb #{@db.db}#{cX.off}
      WOK
      #sudo su -p postgres;  createdb #{@db.db}; #[createuser?]
    end
  ensure
  end
end

#read_sqlite ⇒ Object 



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# File 'lib/sisu/dbi.rb', line 118

def read_sqlite
  begin
    begin
      begin
        require 'sqlite3'
      rescue LoadError
        SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).
          error('sqlite3 NOT FOUND (LoadError)')
      end
      @conn=@db.sqlite.conn_sqlite3
    rescue LoadError
      errmsg='sqlite3 NOT FOUND (LoadError)'
      if @opt.act[:no_stop][:set]==:on
        SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).
          error(errmsg + ', ' + 'attempt to proceed without sqlite output (as requested)')
      else
        SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).
          error(errmsg + ', ' + 'STOPPING')
        exit
      end
    end
  end
end