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40 lines
No EOL
1.9 KiB
Ruby
40 lines
No EOL
1.9 KiB
Ruby
desc "Updates sqlite/sqlite3 databases created under Tracks 1.03 to the format required for Tracks 1.04. After this is done, you should be able to keep up to date with changes in the schema by running rake db:migrate."
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task :upgrade_sqlite_db => :environment do
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# Change the three lines below appropriately for your setup
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old_db = "tracks_103.db"
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new_db = "tracks_104.db"
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cmd = "sqlite3"
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replace_string = "update todos set done='f' where done=0;\nupdate todos set done='t' where done=1;\nupdate contexts set hide='f' where hide=0;\nupdate contexts set hide='t' where hide=1;\nupdate projects set done='f' where done=0;\nupdate projects set done='t' where done=1;\nCREATE TABLE 'schema_info' (\n 'version' INTEGER default NULL\n);\nINSERT INTO \"schema_info\" VALUES(1);\nCOMMIT;"
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# cd to the db directory
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cd("db") do
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# Dump the old db into the temp file and replace the tinyints with booleans
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`#{cmd} #{old_db} .dump | sed "s/tinyint(4) NOT NULL default '0'/boolean default 'f'/" > temp.sql`
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# Create a second sqldump file for writing
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sqldump = File.open("temp2.sql", "w+")
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File.open("temp.sql") do |file|
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file.each_line do |line|
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# If COMMIT is on the line, insert the replace string
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# else just write the line back in
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# This effectively replaces COMMIT with the replace string
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if /COMMIT/ =~ line
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sqldump.write replace_string
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else
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sqldump.write line
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end
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end
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sqldump.close
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end
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# Read the second dump back in to a new db
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system "#{cmd} #{new_db} < temp2.sql"
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puts "Created the a new database called #{new_db}."
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# Clean up the temp files
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rm("temp.sql")
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rm("temp2.sql")
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puts "Temporary files cleaned up."
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end
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# rake db:migrate
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puts "Now check the database and run 'rake db:migrate' in the root of your Tracks installation."
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end |