mirror of
https://github.com/we-promise/sure.git
synced 2026-04-17 11:04:14 +00:00
25ac822308
* Print initial impl * Try to keep the bigger section together * /* Tufte-inspired Print Report Styles */ * styling * I8n * Move print styling out. * FIX unrelated test ordering on line 53 - import.rows.first doesn't guarantee ordering. Without an explicit ORDER BY, the database may return rows in any order. * Update print-report.css * Update print.html.erb * pass data to view * Update index.html.erb * Fix ERB helpers * Update reports_helper.rb
35 lines
1.0 KiB
Ruby
35 lines
1.0 KiB
Ruby
module ReportsHelper
|
|
# Generate SVG polyline points for a sparkline chart
|
|
# Returns empty string if fewer than 2 data points (can't draw a line with 1 point)
|
|
def sparkline_points(values, width: 60, height: 16)
|
|
return "" if values.nil? || values.length < 2 || values.all? { |v| v.nil? || v.zero? }
|
|
|
|
nums = values.map(&:to_f)
|
|
max_val = nums.max
|
|
min_val = nums.min
|
|
range = max_val - min_val
|
|
range = 1.0 if range.zero?
|
|
|
|
points = nums.each_with_index.map do |val, i|
|
|
x = (i.to_f / [ nums.length - 1, 1 ].max) * width
|
|
y = height - ((val - min_val) / range * (height - 2)) - 1
|
|
"#{x.round(1)},#{y.round(1)}"
|
|
end
|
|
|
|
points.join(" ")
|
|
end
|
|
|
|
# Calculate cumulative net values from trends data
|
|
def cumulative_net_values(trends)
|
|
return [] if trends.nil?
|
|
|
|
running = 0
|
|
trends.map { |t| running += t[:net].to_i; running }
|
|
end
|
|
|
|
# Check if trends data has enough points for sparklines (need at least 2)
|
|
def has_sparkline_data?(trends_data)
|
|
trends_data&.length.to_i >= 2
|
|
end
|
|
end
|