v4: 4.0.0 new branch & version & changelog "opened"

1 files changed, 190 insertions, 0 deletions

diff --git a/lib/sisu/v4/db_drop.rb b/lib/sisu/v4/db_drop.rb
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+# encoding: utf-8
+=begin
+
+ * Name: SiSU
+
+ * Description: a framework for document structuring, publishing and search
+
+ * Author: Ralph Amissah
+
+ * Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
+   2007, 2008, 2009, 2010, 2011, 2012 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>
+
+ * Download:
+   <http://www.sisudoc.org/sisu/en/SiSU/download.html>
+
+ * Ralph Amissah
+   <ralph@amissah.com>
+   <ralph.amissah@gmail.com>
+
+ ** Description: modules shared by the different db types, dbi, postgresql,
+    sqlite
+
+=end
+module SiSU_DbDrop
+  class Drop
+    require_relative 'response'                          # response.rb
+    def initialize(opt,conn,db_info,sql_type='')
+      @opt,@conn,@db_info,@sql_type=opt,conn,db_info,sql_type
+      @ans=SiSU_Response::Response.new
+      case @sql_type
+      when /sqlite/
+        cascade=''
+      else
+        cascade='CASCADE'
+      end
+      @drop_table=[
+        "DROP TABLE metadata_and_text #{cascade};",
+        "DROP TABLE doc_objects #{cascade};",
+        "DROP TABLE urls #{cascade};",
+        "DROP TABLE endnotes #{cascade};",
+        "DROP TABLE endnotes_asterisk #{cascade};",
+        "DROP TABLE endnotes_plus #{cascade};",
+      ]
+    end
+    def drop
+      def tables                                                              #% drop all tables
+        begin
+          msg_sqlite="as not all disk space is recovered after dropping the database << #{@db_info.sqlite.db} >>, you may be better off deleting the file, and recreating it as necessary"
+          case @sql_type
+          when /sqlite/
+            puts msg_sqlite
+            ans=@ans.response?('remove sql database?')
+            if ans \
+            and File.exist?(@db_info.sqlite.db)
+              @conn.close
+              File.unlink(@db_info.sqlite.db)
+              db=SiSU_Env::InfoDb.new
+              conn=db.sqlite.conn_sqlite3
+              sdb=SiSU_DbDBI::Create.new(@opt,conn,@db_info,@sql_type)
+              sdb_index=SiSU_DbDBI::Index.new(@opt,conn,@db_info,@sql_type)
+              sdb.output_dir?
+              begin
+                sdb.create_db
+                sdb.create_table.metadata_and_text
+                sdb.create_table.doc_objects
+                sdb.create_table.endnotes
+                sdb.create_table.endnotes_asterisk
+                sdb.create_table.endnotes_plus
+                sdb.create_table.urls
+                sdb_index.create_indexes
+              rescue
+                SiSU_Errors::InfoError.new($!,$@,'-D').error do
+                  __LINE__.to_s + ':' + __FILE__
+                end
+                sdb.output_dir?
+              end
+              exit
+            else
+              @conn.transaction
+              @drop_table.each do |d|
+                @conn.execute(d)
+              end
+              @conn.commit
+            end
+          else
+            @drop_table.each do |d|
+              @conn.execute(d)
+            end
+          end
+        rescue
+          case @sql_type
+          when /sqlite/
+            ans=@ans.response?('remove sql database?')
+            if ans and File.exist?(@db_info.sqlite.db); File.unlink(@db_info.sqlite.db)
+            end
+          else
+            @drop_table.each do |d|
+              @conn.execute(d)
+            end
+          end
+        ensure
+        end
+      end
+      def indexes
+        def conn_execute_array(sql_arr)
+          @conn.transaction do |conn|
+            sql_arr.each do |sql|
+              conn.execute(sql)
+            end
+          end
+        end
+        def base                                                             #% drop base indexes
+          print "\n          drop documents common indexes\n" unless @opt.cmd =~/q/
+          sql_arr=[
+            %{DROP INDEX idx_title;},
+            %{DROP INDEX idx_author;},
+            %{DROP INDEX idx_filename;},
+            %{DROP INDEX idx_topics;},
+            %{DROP INDEX idx_ocn;},
+            %{DROP INDEX idx_digest_clean;},
+            %{DROP INDEX idx_digest_all;},
+            %{DROP INDEX idx_lev1;},
+            %{DROP INDEX idx_lev2;},
+            %{DROP INDEX idx_lev3;},
+            %{DROP INDEX idx_lev4;},
+            %{DROP INDEX idx_lev5;},
+            %{DROP INDEX idx_lev6;},
+            %{DROP INDEX idx_endnote_nr;},
+            %{DROP INDEX idx_digest_en;},
+            %{DROP INDEX idx_endnote_nr_asterisk;},
+            %{DROP INDEX idx_endnote_asterisk;},
+            %{DROP INDEX idx_digest_en_asterisk;},
+            %{DROP INDEX idx_endnote_nr_plus;},
+            %{DROP INDEX idx_endnote_plus;},
+            %{DROP INDEX idx_digest_en_plus},
+          ]
+          conn_execute_array(sql_arr)
+        end
+        def text                                                             #% drop TEXT indexes, sqlite
+          print "\n          drop documents TEXT indexes\n" unless @opt.cmd =~/q/
+          sql_arr=[
+            %{DROP INDEX idx_clean;},
+            %{DROP INDEX idx_endnote},
+          ]
+          conn_execute_array(sql_arr)
+        end
+        self
+      end
+      indexes.base
+      @opt.cmd=~/D/ || ((@opt.mod=~/psql/) ? '' : indexes.text)
+      self
+    end
+  end
+end
+__END__