# 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, 2013, 2014 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 .
If you have Internet connection, the latest version of the GPL should be
available at these locations:
* SiSU uses:
* Standard SiSU markup syntax,
* Standard SiSU meta-markup syntax, and the
* Standard SiSU object citation numbering and system
* Hompages:
* Git
* Ralph Amissah
** Description: modules shared by the different db types, dbi, postgresql,
sqlite
=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__