sqlite3 fix, populate do using rb sqlite3 driver directly (rb dbi problematic

at present)

sqlite fix, change ruby driver used to populate sisu sqlite3 db to rb sqlite3
for the time being. Use rb sqlite3 driver directly rather (than more convenient
when working) rb dbi interface to populate content. Used to bypass problems
with rb dbi sqlite3 interface noted in sisu 0.66.2 (2008-04-25) and 0.66.3
(2008-05-11) that have have persisted (apparently worked at end 2007 (v.0.62.4)
and start of 2008 (v.0.64.0)

* sqlite dropall, fix

* fix to auto-generated sqlite cgi script sample, only works if at least one
existing populated sisu sqlite database is found during the generation process

8 files changed, 117 insertions, 91 deletions

diff --git a/lib/sisu/v0/cgi_sqlite.rb b/lib/sisu/v0/cgi_sqlite.rb
index 08897f54..56bcecf6 100644
--- a/lib/sisu/v0/cgi_sqlite.rb
+++ b/lib/sisu/v0/cgi_sqlite.rb
@@ -94,7 +94,7 @@ module  SiSU_CGI_sqlite
       serve.each do |x|
         f3 << %{          when /SiSU_#{x}/;                      "#{@env.path.webserv}/#{x}/sisu_sqlite.db"\n}
       end
-      f3 << "          end\n"
+      f3 << "else  #{@env.path.webserv}/#{serve[0]}/sisu_sqlite.db\n          end\n"
       if FileTest.writable?('.')
         output=File.open('sisu_sqlite.cgi','w')
         output << header0 << header1 << header_desc << header2 << f1 << buttons1 << buttons2 << search_request << search_statement << search_statement_common << search_query1 << @common.pages << search_query2 << @common.tail << @common.main1 << f2 << f3 << dbi_connect << @common.main2
diff --git a/lib/sisu/v0/db_drop.rb b/lib/sisu/v0/db_drop.rb
index f41325b2..93b27e6d 100644
--- a/lib/sisu/v0/db_drop.rb
+++ b/lib/sisu/v0/db_drop.rb
@@ -60,40 +60,56 @@
 =end
 module SiSU_DB_drop
   class Drop
-    def initialize(opt,conn,file,sql_type='')
-      @opt,@conn,@file,@sql_type=opt,conn,file,sql_type
+    require "#{SiSU_lib}/response"
+    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 #{cascade};",
+        "DROP TABLE documents #{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/
-            cascade=''
-            commit=@conn.commit
+            @conn.transaction
+            @drop_table.each do |d|
+              @conn.execute(d)
+            end
+            @conn.commit
+            puts msg_sqlite
+            ans=@ans.response?('remove sql database?')
+            if ans and File.exist?(@db_info.sqlite.db)
+              File.unlink(@db_info.sqlite.db)
+            end
           else
-            cascade='CASCADE'
-            commit=''
+            @conn.do(@drop_table.join(''))
           end
-          @conn.do(%{
-            DROP TABLE metadata #{cascade};
-            DROP TABLE documents #{cascade};
-            DROP TABLE urls #{cascade};
-            DROP TABLE endnotes #{cascade};
-            DROP TABLE endnotes_asterisk #{cascade};
-            DROP TABLE endnotes_plus #{cascade};
-          })
-          commit
         rescue
-          @conn.do(%{
-            DROP TABLE endnotes;
-            DROP TABLE endnotes_asterisk;
-            DROP TABLE endnotes_plus;
-            DROP TABLE urls #{cascade};
-            DROP TABLE documents #{cascade};
-            DROP TABLE metadata #{cascade};
-          })
+          case @sql_type
+          when /sqlite/
+            #system("rm -vi #{@db_info.sqlite.db}")
+            ans=@ans.response?('remove sql database?')
+            if ans and File.exist?(@db_info.sqlite.db); File.unlink(@db_info.sqlite.db)
+            end
+          else
+            @conn.do(@drop_table.join(''))
+          end
         ensure
-          commit
+          #commit
         end
       end
       def indexes                                                             #% drop all indexes
diff --git a/lib/sisu/v0/db_import.rb b/lib/sisu/v0/db_import.rb
index bcdfc497..03f72065 100644
--- a/lib/sisu/v0/db_import.rb
+++ b/lib/sisu/v0/db_import.rb
@@ -8,7 +8,7 @@
  * Author: Ralph Amissah
 
  * Copyright: (C) 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005, 2006,
-   2007, 2008 Ralph Amissah All Rights Reserved.
+   2007, 2008, 2009 Ralph Amissah All Rights Reserved.
 
  * License: GPL 3 or later:
 
@@ -62,7 +62,7 @@ module SiSU_DB_import
   require "#{SiSU_lib}/db_columns"
   require "#{SiSU_lib}/db_load_tuple"
   require "#{SiSU_lib}/shared_html_lite"
-  #require 'sqlite3'
+  require 'sqlite3'
   class Import < SiSU_DB_columns::Column_size
     include SiSU_Param
     include SiSU_Screen
@@ -85,18 +85,30 @@ module SiSU_DB_import
       @col=Hash.new('')
       @col[:ocn]=''
       @counter={}
+      @db=SiSU_Env::Info_db.new
+      @driver_sqlite3=false
+      @driver_sqlite3=true if @conn.inspect.match(/^(.{10})/)[1] == @db.sqlite.conn_sqlite3.inspect.match(/^(.{10})/)[1]
       sql='SELECT MAX(lid) FROM documents'
       begin
         @col[:lid] ||=0
-        @col[:lid]=@conn.execute( sql ) { |x| x.fetch_all.to_s.to_i }
+        @col[:lid]=if @driver_sqlite3
+          @conn.execute( sql ).join.to_i
+        else @conn.execute( sql ) { |x| x.fetch_all.to_s.to_i }
+        end
       rescue
+        puts "#{__FILE__} #{__LINE__}" if @opt.cmd =~/M/
       end
       @col[:lid] =0 if @col[:lid].nil? or @col[:lid].to_s.empty?
       sql='SELECT MAX(nid) FROM endnotes'
       begin
         @id_n ||=0
-        @id_n=@conn.execute( sql ) { |x| x.fetch_all.to_s.to_i }
+        @id_n=if @driver_sqlite3
+          @conn.execute( sql ).join.to_i
+        else
+          @id_n=@conn.execute( sql ) { |x| x.fetch_all.to_s.to_i }
+        end
       rescue
+        puts "#{__FILE__} #{__LINE__}" if @opt.cmd =~/M/
       end
       @id_n =0 if @col[:lid].nil? or @col[:lid].to_s.empty?
       @col[:lv1]=@col[:lv2]=@col[:lv3]=@col[:lv4]=@col[:lv5]=@col[:lv6]=0
@@ -112,15 +124,8 @@ module SiSU_DB_import
       tell.print_grey if @opt.cmd =~/v/
       case @sql_type
       when /sqlite/                                                    #fix logic for sqlite !
-#sqlite watch
-unless @opt.cmd =~/[MVv]/
-  puts "\nSiSU's sqlite module for the time being broken: inconsistent ruby dbi api for sqlite3, (unable to begin and commit transaction)\n".upcase
-  p @conn.methods.sort
-  #p "here #{__FILE__} #{__LINE__}"
-  exit
-else
+        #sqlite watch
         #pf_db_import_transaction_open if @opt =~/M/
-        #@conn.begin
         db_import_metadata
         db_import_documents(@dal_array)
         db_import_urls(@dal_array,@fnm)                                #import OID on/off
@@ -128,15 +133,10 @@ else
         #@conn.commit
         #@conn.close
         #@conn.disconnect
-  puts "\nSiSU's sqlite module for the time being broken: inconsistent ruby dbi api for sqlite3, (unable to begin and commit transaction)\n".upcase
-  p @conn.methods.sort
-  if @opt.cmd =~/M/
-    puts "\n" + @conn.inspect
-    puts "\nat #{__FILE__} #{__LINE__}"
-  end
-  exit
-end
-#sqlite watch
+        if @opt.cmd =~/M/
+          puts "\n" + @conn.inspect
+          puts "\nat #{__FILE__} #{__LINE__}"
+        end
       else
         file_exist=@conn.select_one(%{ SELECT metadata.tid FROM metadata WHERE metadata.filename ~ '#{@opt.fns}'; })
         unless file_exist
@@ -191,9 +191,13 @@ end
         sql='SELECT MAX(tid) FROM metadata'
         begin
           @@id_t ||=0
-          id_t=@conn.execute( sql ) { |x| x.fetch_all.to_s.to_i }
+          id_t=if @driver_sqlite3
+            @conn.execute( sql ).join.to_i # { |x| id_t=x.join.to_i }
+          else @conn.execute( sql ) { |x| x.fetch_all.to_s.to_i }
+          end
           @@id_t=id_t if id_t
         rescue
+          puts "#{__FILE__} #{__LINE__}" if @opt.cmd =~/M/
         end
         @@id_t =0 if @col[:lid].nil? or @col[:lid].to_s.empty?
         @@id_t+=1 #bug related, needs to be performed once at start of file, but consider moving, as, placed here it means program will fail if document header lacks 0~title
diff --git a/lib/sisu/v0/db_load_tuple.rb b/lib/sisu/v0/db_load_tuple.rb
index 512d5933..c5169b4e 100644
--- a/lib/sisu/v0/db_load_tuple.rb
+++ b/lib/sisu/v0/db_load_tuple.rb
@@ -121,7 +121,7 @@ module SiSU_DB_tuple
       if @opt.cmd =~/M/
         puts "maintenance mode on: creating sql transaction file (for last transaction set (document) only):\n\t#{@file.inspect}"
         @file.puts sql_entry
-      else @conn.execute(%{#{sql_entry}})
+      else @conn.execute(sql_entry)
       end
     end
   end
@@ -133,7 +133,7 @@ module SiSU_DB_tuple
       sql_entry="INSERT INTO urls (#{@f[:txt]} #{@f[:html_toc]} #{@f[:html_doc]} #{@f[:xhtml]} #{@f[:xml_sax]} #{@f[:xml_dom]} #{@f[:odf]} #{@f[:pdf_p]} #{@f[:pdf_l]} #{@f[:concordance]} #{@f[:latex_p]} #{@f[:latex_l]} #{@f[:manifest]} #{@f[:digest]} #{@f[:markup]} #{@f[:sisupod]} metadata_tid) VALUES (#{@u[:txt]} #{@u[:html_toc]} #{@u[:html_doc]} #{@u[:xhtml]} #{@u[:xml_sax]} #{@u[:xml_dom]} #{@u[:odf]} #{@u[:pdf_p]} #{@u[:pdf_l]} #{@u[:concordance]} #{@u[:latex_p]} #{@u[:latex_l]} #{@u[:manifest]} #{@u[:digest]} #{@u[:markup]} #{@u[:sisupod]} #{@id});"
       if @opt.cmd =~/M/
         @file.puts sql_entry
-      else @conn.execute(%{#{sql_entry}})
+      else @conn.execute(sql_entry)
       end
     end
   end
@@ -145,7 +145,7 @@ module SiSU_DB_tuple
       sql_entry="INSERT INTO #{@en[:type]} (nid, document_lid, nr, clean, body, ocn, ocnd, ocns, metadata_tid, digest_clean) VALUES ('#{@en[:id]}', '#{@en[:lid]}', '#{@en[:nr]}', '#{@en[:txt]}', '#{@en[:body]}', '#{@en[:ocn]}', '#{@en[:ocnd]}', '#{@en[:ocns]}', '#{@en[:id_t]}', '#{@en[:hash]}');"
       if @opt.cmd =~/M/
         @file.puts sql_entry
-      else @conn.execute(%{#{sql_entry}})
+      else @conn.execute(sql_entry)
       end
     end
   end
diff --git a/lib/sisu/v0/db_remove.rb b/lib/sisu/v0/db_remove.rb
index fef4e797..a869bd24 100644
--- a/lib/sisu/v0/db_remove.rb
+++ b/lib/sisu/v0/db_remove.rb
@@ -67,22 +67,35 @@ module SiSU_DB_remove
       @db=SiSU_Env::Info_db.new
     end
     def remove
-      del=@conn.select_one(%{ SELECT tid FROM metadata WHERE filename LIKE '#{@opt.fns}'; })
-      if del
-        del_id=del.join
-        #@conn.execute("BEGIN")
-        sql_entry=<<SQL
-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 documents WHERE metadata_tid = '#{del_id}';
-DELETE FROM urls WHERE metadata_tid = '#{del_id}';
-DELETE FROM metadata WHERE tid = '#{del_id}';
-SQL
-        @conn.execute(%{#{sql_entry}})
+      driver_sqlite3 = true if @conn.inspect.match(/^(.{10})/)[1] == @db.sqlite.conn_sqlite3.inspect.match(/^(.{10})/)[1]
+      del_id=if driver_sqlite3
+        @conn.get_first_value(%{ SELECT tid FROM metadata WHERE filename LIKE '#{@opt.fns}'; }).to_i
+      else
+        x=@conn.select_one(%{ SELECT tid FROM metadata WHERE filename LIKE '#{@opt.fns}'; })
+        del=if x; x.join.to_i else nil
+        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 documents WHERE metadata_tid = '#{del_id}';",
+          "DELETE FROM urls WHERE metadata_tid = '#{del_id}';",
+          "DELETE FROM metadata WHERE tid = '#{del_id}';",
+        ]
+        if driver_sqlite3
+          @conn.transaction
+          sql_entry.each do |s|
+            @conn.execute(s)
+          end
+          @conn.commit if driver_sqlite3
+        else
+          s=sql_entry.join(' ')
+          @conn.execute(s)
+        end
         if @opt.cmd =~/M/
           @file.puts sql_entry if @opt.cmd =~/M/
-        #else @conn.execute(%{#{sql_entry}})
         end
       else
         tell=SiSU_Screen::Ansi.new(@opt.cmd,"no such file in database #{@db.psql.db}::#{@opt.fns}")
@@ -92,17 +105,3 @@ SQL
   end
 end
 __END__
-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 documents WHERE metadata_tid = '#{del_id}';
-DELETE FROM urls WHERE metadata_tid = '#{del_id}';
-DELETE FROM metadata WHERE tid = '#{del_id}';
-/*
-DELETE FROM documents WHERE documents.metadata_tid = '#{del_id}';
-DELETE FROM endnotes WHERE endnotes.metadata_tid = '#{del_id}';
-DELETE FROM endnotes_asterisk WHERE endnotes_asterisk.metadata_tid = '#{del_id}';
-DELETE FROM endnotes_plus WHERE endnotes_plus.metadata_tid = '#{del_id}';
-DELETE FROM urls WHERE urls.metadata_tid = '#{del_id}';
-DELETE FROM metadata WHERE metadata.tid = '#{del_id}';
-*/
diff --git a/lib/sisu/v0/db_select.rb b/lib/sisu/v0/db_select.rb
index 675a89e4..87a3a5af 100644
--- a/lib/sisu/v0/db_select.rb
+++ b/lib/sisu/v0/db_select.rb
@@ -65,18 +65,18 @@ module SiSU_DB_select
 #@conn.execute("BEGIN;")
       #@sdb=Create.new(@conn)
       @file=sql_maintenance_file
+      @db=SiSU_Env::Info_db.new
       @sdb=SiSU_DB_DBI::Create.new(@opt,@conn,@file,@sql_type)      # db_dbi.rb
       @sdb_index=SiSU_DB_DBI::Index.new(@opt,@conn,@file,@sql_type) # db_dbi.rb
-      @sdb_no=SiSU_DB_DBI::Drop.new(@opt,@conn,@file,@sql_type)     # db_dbi.rb
+      @sdb_no=SiSU_DB_DBI::Drop.new(@opt,@conn,@db,@sql_type)     # db_dbi.rb
       @sdb_import=SiSU_DB_DBI::Import.new(@opt,@conn,@file,@sql_type) if @opt.mod.inspect =~/update|import/
       @sdb_remove_doc=SiSU_DB_DBI::Remove.new(@opt,@conn,@file) if @opt.mod.inspect =~/update|remove/
-      @db=SiSU_Env::Info_db.new
     end
     def sql_maintenance_file
       file=if @opt.inspect =~/M/
         x=if @opt.fns and not @opt.fns.empty?
           @env=SiSU_Env::Info_env.new(@opt.fns) if @opt.fns
-          puts "\n#{@env.path.sqlite}/#{@opt.fns}.sql"
+          puts "\n#{@env.path.sqlite}/#{@opt.fns}.sql" if @sql_type =~/sqlite/ and @opt.cmd =~/M/
           @db=SiSU_Env::Info_db.new
           @job="sqlite3 #{@db.sqlite.db} < #{@env.path.sqlite}/#{@opt.fns}.sql"
           File.new("#{@env.path.sqlite}/#{@opt.fns}.sql",'w+')
@@ -185,11 +185,7 @@ module SiSU_DB_select
         end
       end
       begin
-      #if @sql_type =~/sqlite/
-      #  #p @conn.methods.sort
-      #  @conn.commit
-      #  ##@conn.disconnect
-      #end
+        #@conn.commit if @sql_type =~/sqlite/
       rescue; @sdb.output_dir?
       end
     end
diff --git a/lib/sisu/v0/dbi.rb b/lib/sisu/v0/dbi.rb
index 9576fa74..14b3e059 100644
--- a/lib/sisu/v0/dbi.rb
+++ b/lib/sisu/v0/dbi.rb
@@ -105,8 +105,7 @@ module  SiSU_DBI
     end
     def read_psql
       begin
-        db,user,dbi,pass=@db.psql.db,@db.psql.user,@db.psql.dbi,@db.psql.password
-        @conn=DBI.connect(dbi,user,pass)
+        @conn=@db.psql.conn_dbi
       rescue
         if @opt.mod.inspect=~/--(createall|create)/
           puts %{manually create the database: "#{db}" if it does not yet exist}
@@ -120,8 +119,8 @@ module  SiSU_DBI
     def read_sqlite
       begin
         sql_type='sqlite'
-        dbi=@db.sqlite.dbi
-        @conn=DBI.connect(dbi)
+        @conn=@db.sqlite.conn_sqlite3
+        #@conn=@db.sqlite.conn_dbi     #issue with dbi sqlite api, when fixed revert to using, KEEP
       rescue
       ensure
       end
diff --git a/lib/sisu/v0/sysenv.rb b/lib/sisu/v0/sysenv.rb
index ded14951..8356e5ee 100644
--- a/lib/sisu/v0/sysenv.rb
+++ b/lib/sisu/v0/sysenv.rb
@@ -2759,7 +2759,10 @@ WOK
         else "DBI:Pg:database=#{psql.db};port=#{psql.port}"
         end
       end
-      self
+      def conn_dbi
+        DBI.connect(psql.dbi,psql.user,psql.db)
+      end
+     self
     end
     def mysql
       def db
@@ -2780,6 +2783,15 @@ WOK
       def dbi
         "DBI:SQLite3:#{sqlite.db}" #sqlite3 ?
       end
+      def sqlite3
+        sqlite.db #sqlite3 ?
+      end
+      def conn_dbi
+        DBI.connect(sqlite.dbi)
+      end
+      def conn_sqlite3
+        SQLite3::Database.new(sqlite.sqlite3)
+      end
       self
     end
   end