2017-06-29 15:01:32 +00:00
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# encoding: utf-8
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# author: Christoph Hartmann
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# author: Dominik Richter
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module DatabaseHelper
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class SQLColumn
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def initialize(row, name)
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@row = row
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@name = name
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end
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def value
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2018-03-01 19:30:07 +00:00
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@row.nil? ? '' : @row[@name.downcase]
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2017-06-29 15:01:32 +00:00
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end
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def to_s
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'SQL Column'
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end
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end
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class SQLRow
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def initialize(query, row)
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@query = query
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@row = row
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end
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def column(column)
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SQLColumn.new(@row, column)
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end
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def to_s
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'SQL Row'
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end
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end
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class SQLQueryResult
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attr_reader :error
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def initialize(cmd, results)
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@cmd = cmd
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@results = results
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end
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def empty?
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@results.empty?
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end
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def successful?
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@cmd.exit_status == 0 && @error.nil?
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end
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def row(id)
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SQLRow.new(self, @results[id])
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end
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def size
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@results.size
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end
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def stdout
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warn '[DEPRECATION] The `stdout` method is deprecated. Use `row` instead.'
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@cmd.stdout
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end
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def stderr
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warn '[DEPRECATION] The `stderr` method is deprecated. Use `successful?` instead.'
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@cmd.stderr
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end
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def inspect
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to_s
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end
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def to_s
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'SQL ResultSet'
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end
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end
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end
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