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Diffstat (limited to 'lib/sisu/db_remove.rb')
| -rw-r--r-- | lib/sisu/db_remove.rb | 182 |
1 files changed, 182 insertions, 0 deletions
diff --git a/lib/sisu/db_remove.rb b/lib/sisu/db_remove.rb new file mode 100644 index 00000000..7816aacc --- /dev/null +++ b/lib/sisu/db_remove.rb @@ -0,0 +1,182 @@ +# encoding: utf-8 +=begin + +* Name: SiSU + +** Description: documents, structuring, processing, publishing, search +*** modules shared by the different db types, dbi, postgresql, sqlite + +** Author: Ralph Amissah + <ralph@amissah.com> + <ralph.amissah@gmail.com> + +** Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006, + 2007, 2008, 2009, 2010, 2011, 2012, 2013, 2014, 2015 Ralph Amissah, + All Rights Reserved. + +** License: GPL 3 or later: + + SiSU, a framework for document structuring, publishing and search + + Copyright (C) Ralph Amissah + + This program is free software: you can redistribute it and/or modify it + under the terms of the GNU General Public License as published by the Free + Software Foundation, either version 3 of the License, or (at your option) + any later version. + + This program is distributed in the hope that it will be useful, but WITHOUT + ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + more details. + + You should have received a copy of the GNU General Public License along with + this program. If not, see <http://www.gnu.org/licenses/>. + + If you have Internet connection, the latest version of the GPL should be + available at these locations: + <http://www.fsf.org/licensing/licenses/gpl.html> + <http://www.gnu.org/licenses/gpl.html> + + <http://www.sisudoc.org/sisu/en/manifest/gpl.fsf.html> + +** SiSU uses: + * Standard SiSU markup syntax, + * Standard SiSU meta-markup syntax, and the + * Standard SiSU object citation numbering and system + +** Hompages: + <http://www.jus.uio.no/sisu> + <http://www.sisudoc.org> + +** Git + <http://git.sisudoc.org/gitweb/?p=code/sisu.git;a=summary> + <http://git.sisudoc.org/gitweb/?p=code/sisu.git;a=blob;f=lib/sisu/db_remove.rb;hb=HEAD> + +=end +module SiSU_DbRemove + class Remove + include SiSU_DbAction + def initialize(opt,conn,file,sql_type) + @opt,@conn,@file,@sql_type=opt,conn,file,sql_type + @md=SiSU_Param::Parameters.new(@opt).get + @fnb=@md.fnb + @db=SiSU_Env::InfoDb.new + end + def remove + driver_sqlite3=if @sql_type==:sqlite + (@conn.inspect.match(/^(.{10})/)[1]==@db.sqlite.conn_sqlite3.inspect.match(/^(.{10})/)[1]) \ + ? true + : false + end + del_id=if driver_sqlite3 + begin + remove_selected=%{ + SELECT tid + FROM metadata_and_text + WHERE src_filename = '#{@md.fns}' + AND metadata_and_text.language_document_char = '#{@opt.lng}' + ;} # note, for .ssm: @md.fns (is set during runtime & is) != @opt.fns @md.opt.fns + @conn.get_first_value(remove_selected).to_i + rescue SQLite3::Exception => e + #not tested + puts "Exception occurred" + SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).mark(e.inspect) + SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:yellow).mark( + "\n" \ + + 'Attempting to initialize db' + "\n" \ + + 'Creating db tables' + ) + sdb={ + create: SiSU_DbDBI::Create.new(@opt,@conn,@file_maint,@sql_type), + index: SiSU_DbDBI::Index.new(@opt,@conn,@file_maint,@sql_type), + } + db_action(sdb).create + end + else + begin + remove_selected=%{ + SELECT metadata_and_text.tid + FROM metadata_and_text + WHERE metadata_and_text.src_filename = '#{@md.fns}' + AND metadata_and_text.language_document_char = '#{@opt.lng}' + ;} # note, for .ssm: @md.fns (is set during runtime & is) != @opt.fns @md.opt.fns + x=@conn.exec(remove_selected) + x.field_values("tid")[0] + rescue PG::Error => e + err=[ + e.result.error_field( PG::Result::PG_DIAG_SEVERITY ), + e.result.error_field( PG::Result::PG_DIAG_SQLSTATE ), + e.result.error_field( PG::Result::PG_DIAG_MESSAGE_PRIMARY ), + e.result.error_field( PG::Result::PG_DIAG_MESSAGE_DETAIL ), + e.result.error_field( PG::Result::PG_DIAG_MESSAGE_HINT ), + e.result.error_field( PG::Result::PG_DIAG_STATEMENT_POSITION ), + e.result.error_field( PG::Result::PG_DIAG_INTERNAL_POSITION ), + e.result.error_field( PG::Result::PG_DIAG_INTERNAL_QUERY ), + e.result.error_field( PG::Result::PG_DIAG_CONTEXT ), + e.result.error_field( PG::Result::PG_DIAG_SOURCE_FILE ), + e.result.error_field( PG::Result::PG_DIAG_SOURCE_LINE ), + e.result.error_field( PG::Result::PG_DIAG_SOURCE_FUNCTION ), + ] + SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:fuchsia).mark("\n" + err.inspect) + if err[2] =~/relation "\S+?" does not exist/ \ + or err.inspect =~/relation "\S+?" does not exist/ + SiSU_Utils::CodeMarker.new(__LINE__,__FILE__,:yellow).mark( + "\n" \ + + err[2] + "\n" \ + + 'Attempting to initialize db' + "\n" \ + + 'Creating db tables' + ) + sdb={ + create: SiSU_DbDBI::Create.new(@opt,@conn,@file_maint,@sql_type), + index: SiSU_DbDBI::Index.new(@opt,@conn,@file_maint,@sql_type), + } + db_action(sdb).create + end + end + end + if del_id + sql_entry=[ + "DELETE FROM endnotes WHERE metadata_tid = '#{del_id}';", + "DELETE FROM endnotes_asterisk WHERE metadata_tid = '#{del_id}';", + "DELETE FROM endnotes_plus WHERE metadata_tid = '#{del_id}';", + "DELETE FROM doc_objects WHERE metadata_tid = '#{del_id}';", + "DELETE FROM urls WHERE metadata_tid = '#{del_id}';", + "DELETE FROM metadata_and_text WHERE metadata_and_text.tid = '#{del_id}';", + ] + if driver_sqlite3 + @conn.transaction + sql_entry.each do |s| + begin + @conn.execute(s) + rescue + next + end + end + @conn.commit if driver_sqlite3 + else + sql_entry.each do |s| + begin + @conn.exec_params(s) + rescue + next + end + end + end + if @opt.act[:maintenance][:set]==:on + @file.puts sql_entry + end + else + if (@opt.act[:verbose][:set]==:on \ + || @opt.act[:verbose_plus][:set]==:on \ + || @opt.act[:maintenance][:set]==:on) + SiSU_Screen::Ansi.new( + @opt.selections.str, + "no such file in database #{@db.psql.db}::#{@opt.fns}" + ).puts_grey + end + end + end + end +end +__END__ |