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 6

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

#terminal_width ⇒ Object

Returns the value of attribute terminal_width.



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# File 'lib/sql_tracker/report.rb', line 4

def terminal_width
  @terminal_width
end

Instance Method Details

#+(other) ⇒ Object 



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# File 'lib/sql_tracker/report.rb', line 77

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 25

def data
  raw_data['data']
end

#print_text(options) ⇒ Object 



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# File 'lib/sql_tracker/report.rb', line 29

def print_text(options)
  self.terminal_width = options.fetch(:terminal_width)
  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

  sorted_data = sort_data(data.values, options[:sort_by])
  sorted_data.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(row_format, count, duration, query, source)
    end
    f.puts '-' * terminal_width
  end
end

#row_format ⇒ Object 



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# File 'lib/sql_tracker/report.rb', line 63

def row_format
  "%-#{count_width}s | %-#{duration_width}s | %-#{sql_width}s | %-#{sql_width}s\n"
end

#sort_data(data, sort_by) ⇒ Object 



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# File 'lib/sql_tracker/report.rb', line 67

def sort_data(data, sort_by)
  data.sort_by do |d|
    if sort_by == 'duration'
      -d['duration'].to_f / d['count']
    else
      -d['count']
    end
  end
end

#valid? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/sql_tracker/report.rb', line 10

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 21

def version
  raw_data['format_version']
end