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use tsql-ttds for structure_load (fixes #956) #957

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use tsql-ttds for structure_load (fixes #956) #957

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14 changes: 12 additions & 2 deletions lib/active_record/tasks/sqlserver_database_tasks.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -72,15 +72,25 @@ def structure_dump(filename, extra_flags)

dump = File.read(filename)
dump.gsub!(/^USE .*$\nGO\n/, "") # Strip db USE statements
dump.gsub!(/^GO\n/, "") # Strip db GO statements
dump.gsub!(/nvarchar\(8000\)/, "nvarchar(4000)") # Fix nvarchar(8000) column defs
dump.gsub!(/nvarchar\(-1\)/, "nvarchar(max)") # Fix nvarchar(-1) column defs
dump.gsub!(/text\(\d+\)/, "text") # Fix text(16) column defs
File.open(filename, "w") { |file| file.puts dump }
end

def structure_load(filename, extra_flags)
connection.execute File.read(filename)
server_arg = "-S #{Shellwords.escape(configuration_hash[:host])}"
server_arg += ":#{Shellwords.escape(configuration_hash[:port])}" if configuration_hash[:port]
command = [
"tsql-ttds",
server_arg,
"-D #{Shellwords.escape(configuration_hash[:database])}",
"-U #{Shellwords.escape(configuration_hash[:username])}",
"-P #{Shellwords.escape(configuration_hash[:password])}",
]

stdout_str, stderr_str, status = Open3.capture3(command.join(" "), stdin_data: File.read(filename))
raise "Error loading database: #{stderr_str}" unless status.exitstatus == 0
end

private
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