From 4b51bc00cda70d3c118401a74f1704df38c947a3 Mon Sep 17 00:00:00 2001
From: Ralph Amissah <ralph@amissah.com>
Date: Tue, 1 Feb 2011 09:48:30 -0500
Subject: v3 introduced as development branch, invoked using "sisu --v3
 [instructions]

---
 lib/sisu/v3/db_remove.rb | 109 +++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 109 insertions(+)
 create mode 100644 lib/sisu/v3/db_remove.rb

(limited to 'lib/sisu/v3/db_remove.rb')

diff --git a/lib/sisu/v3/db_remove.rb b/lib/sisu/v3/db_remove.rb
new file mode 100644
index 00000000..364f5fc7
--- /dev/null
+++ b/lib/sisu/v3/db_remove.rb
@@ -0,0 +1,109 @@
+# coding: utf-8
+=begin
+
+ * Name: SiSU
+
+ * Description: a framework for document structuring, publishing and search
+
+ * Author: Ralph Amissah
+
+ * Copyright: (C) 1997 - 2010, 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.jus.uio.no/sisu/gpl.fsf/toc.html>
+   <http://www.jus.uio.no/sisu/gpl.fsf/doc.html>
+   <http://www.jus.uio.no/sisu/gpl.fsf/plain.txt>
+
+ * 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.jus.uio.no/sisu/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_DB_remove
+  class Remove
+    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::Info_db.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
+        @conn.get_first_value(%{ SELECT tid FROM metadata_and_text WHERE src_filename = '#{@opt.fns}'; }).to_i
+      else
+        x=@conn.select_one(%{ SELECT metadata_and_text.tid FROM metadata_and_text WHERE metadata_and_text.src_filename = '#{@opt.fns}'; })
+        x ? (x.join.to_i) : nil
+      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|
+            @conn.execute(s)
+          end
+          @conn.commit if driver_sqlite3
+        else
+          sql_entry.each do |s|
+            @conn.execute(s)
+          end
+        end
+        if @opt.cmd =~/M/
+          @file.puts sql_entry if @opt.cmd =~/M/
+        end
+      else
+        SiSU_Screen::Ansi.new(@opt.cmd,"no such file in database #{@db.psql.db}::#{@opt.fns}").puts_grey if @opt.cmd =~/vVM/
+      end
+    end
+  end
+end
+__END__
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