Class: SqlTracker::Report

Inherits:
Object
  • Object
show all
Defined in:
lib/sql_tracker/report.rb

Instance Attribute Summary collapse

Instance Method Summary collapse

Constructor Details

#initialize(data) ⇒ Report

Returns a new instance of Report.



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# File 'lib/sql_tracker/report.rb', line 5

def initialize(data)
  self.raw_data = data
end

Instance Attribute Details

#raw_data ⇒ Object

Returns the value of attribute raw_data.



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# File 'lib/sql_tracker/report.rb', line 3

def raw_data
  @raw_data
end

Instance Method Details

#+(other) ⇒ Object 



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# File 'lib/sql_tracker/report.rb', line 62

def +(other)
  unless self.class == other.class
    raise ArgumentError, "cannot combine #{other.class}"
  end
  unless version == other.version
    raise ArgumentError, "cannot combine v#{version} with v#{other.version}"
  end

  r1 = data
  r2 = other.data

  merged = (r1.keys + r2.keys).uniq.each_with_object({}) do |id, memo|
    if !r1.key?(id)
      memo[id] = r2[id]
    elsif r2.key?(id)
      memo[id] = r1[id]
      memo[id]['count'] += r2[id]['count']
      memo[id]['duration'] += r2[id]['duration']
      memo[id]['source'] += r2[id]['source']
    else
      memo[id] = r1[id]
    end
  end
  merged_data = { 'data' => merged, 'format_version' => version }

  self.class.new(merged_data)
end

#data ⇒ Object 



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# File 'lib/sql_tracker/report.rb', line 24

def data
  raw_data['data']
end

#print_text(f = STDOUT) ⇒ Object 



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# File 'lib/sql_tracker/report.rb', line 28

def print_text(f = STDOUT)
  f.puts '=================================='
  f.puts "Total Unique SQL Queries: #{data.keys.size}"
  f.puts '=================================='
  f.printf(
    "%-#{count_width}s | %-#{duration_width}s | %-#{sql_width}s | Source\n",
    'Count', 'Avg Time (ms)', 'SQL Query'
  )
  f.puts '-' * terminal_width

  data.values.sort_by { |d| -d['count'] }.each do |row|
    chopped_sql = wrap_text(row['sql'], sql_width)
    source_list = wrap_list(row['source'].uniq, sql_width - 10)
    avg_duration = row['duration'].to_f / row['count']
    total_lines = if chopped_sql.length >= source_list.length
                    chopped_sql.length
                  else
                    source_list.length
                  end

    (0...total_lines).each do |line|
      count = line == 0 ? row['count'].to_s : ''
      duration = line == 0 ? avg_duration.round(2) : ''
      source = source_list.length > line ? source_list[line] : ''
      query = row['sql'].length > line ? chopped_sql[line] : ''
      f.printf(
        "%-#{count_width}s | %-#{duration_width}s | %-#{sql_width}s | %-#{sql_width}s\n",
        count, duration, query, source
      )
    end
    f.puts '-' * terminal_width
  end
end

#valid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/sql_tracker/report.rb', line 9

def valid?
  return false unless raw_data.key?('format_version')
  return false unless raw_data.key?('data')
  return false if raw_data['data'].nil? || raw_data['data'].empty?
  sample = raw_data['data'].values.first
  %w(sql count source).each do |key|
    return false unless sample.key?(key)
  end
  true
end

#version ⇒ Object 



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# File 'lib/sql_tracker/report.rb', line 20

def version
  raw_data['format_version']
end