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# encoding: utf-8
# - Name: SiSU
#
# - Description: documents, structuring, processing, publishing, search
# db sql
#
# - Author: Ralph Amissah
# <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, 2016, 2017, 2019,
# 2020, 2021, 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
#
# - Homepages:
# <http://www.sisudoc.org>
#
# - Git
# <https://git.sisudoc.org/projects/>
# <https://git.sisudoc.org/projects/?p=software/sisu.git;a=summary>
# <https://git.sisudoc.org/projects/?p=markup/sisu-markup-samples.git;a=summary>
module SiSU_DbDrop
require_relative 'utils_response' # utils_response.rb
class Drop
include SiSU_Response
def initialize(opt,conn,db_info,sql_type)
@opt,@conn,@db_info,@sql_type=opt,conn,db_info,sql_type
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=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::Rescued.new($!,$@,'-D').location do
__LINE__.to_s + ':' + __FILE__
end
sdb.output_dir?
end
exit
else
@conn.transaction
@drop_table.each do |d|
begin
@conn.exec_params(d)
rescue
next
end
end
@conn.commit
end
when :pg
@conn.transaction
@drop_table.each do |d|
begin
@conn.exec_params(d)
rescue
next
end
end
@conn.commit
end
rescue
case @sql_type
when :sqlite
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|
begin
@conn.exec_params(d)
rescue
next
end
end
end
ensure
end
end
def indexes
def conn_execute_array(sql_arr)
@conn.transaction do |conn|
sql_arr.each do |sql|
begin
conn.exec_params(sql)
rescue
next
end
end
end
end
def base #% drop base indexes
print "\n drop documents common indexes\n" unless @opt.act[:quiet][:set]==:on
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_lev0;},
%{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.act[:quiet][:set]==:on
sql_arr=[
%{DROP INDEX idx_clean;},
%{DROP INDEX idx_endnote},
]
conn_execute_array(sql_arr)
end
self
end
indexes.base
@opt.act[:psql][:set]==:on ? '' : indexes.text
self
end
end
end
__END__
|
