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Displaying heirarchical quantity headers

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This commit is contained in:
cryptogopher
2020-05-24 18:57:10 +02:00
parent a8d31f26d2
commit 2216cea6d5
3 changed files with 62 additions and 16 deletions
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34
app/helpers/body_trackers_helper.rb
View File

@@ -37,4 +37,38 @@ module BodyTrackersHelper
[u.shortname, u.id]
end
end
def table_header_spec(quantities)
# spec: table of rows (tr), where each row is a hash of cells (td) (hash keeps items
# ordered the way they were added). Hash values determine cell property:
# * int > 0 - quantity name-labelled cell with 'int' size colspan
# * int < 0 - quantity name-labelled cell with 'int' size rowspan
# * nil - non-labelled cell without col-/rowspan
spec = []
default_row = Hash.new(0)
# Determine colspans first...
quantities.each do |q|
ancestors = q.self_and_ancestors.each_with_index do |a, i|
spec[i] ||= default_row.dup
spec[i][a] += 1
end
spec[ancestors.length...spec.length].each { |row| row[ancestors.last] = nil }
default_row[ancestors.last] = nil
end
# ...then rowspans
single_columns = []
spec.each_with_index do |row, i|
single_columns.each { |q| row.delete(q) }
row.each do |q, span|
if span == 1
row[q] = -(spec.length - i)
single_columns << q
end
end
end
spec
end
end

40
app/views/meals/_index.html.erb
View File

@@ -8,21 +8,33 @@
<table id="meals" class="list odd-even">
<tbody>
<% total_width = 4 + @quantities.length %>
<% header = table_header_spec(@quantities) %>
<% @meals_by_date.reverse_each do |date, meals| %>
<tr class="header">
<td colspan="2" rowspan="2"
style="width:<%= 3 * 100/total_width %>%; border: none;"></td>
<td class="quantityhead" style="width:<%= 100/total_width %>%;">
<%= l(:field_amount) %>
</td>
<% @quantities.each do |q| %>
<td class="quantityhead" style="width: <%= 100/total_width %>%;"
title="<%= q.description %>">
<%= q.name %>
</td>
<% end %>
<td rowspan="2" style="width:<%= 100/total_width %>%; border: none;"></td>
</tr>
<% header.each_with_index do |row, i| %>
<tr class="header">
<% if i == 0 %>
<td colspan="2" rowspan="<%= 1 + header.length %>"
style="width:<%= 3 * 100/total_width %>%; border: none;"></td>
<td class="quantityhead" rowspan="<%= header.length %>"
style="width:<%= 100/total_width %>%;"><%= l(:field_amount) %></td>
<% end %>
<% row.each do |q, span| %>
<td class="<%= span ? 'quantityhead' : 'quantityheadempty' %>"
<%= "colspan=#{span}" if span && span > 0 %>
<%= "rowspan=#{-span}" if span && span < 0 %>
style="width: <%= (span && span > 0 ? span : 1) * 100/total_width %>%;"
title="<%= q.description %>">
<%= q.name if span %>
</td>
<% end %>
<% if i == 0 %>
<td rowspan="<%= 1 + header.length %>"
style="width:<%= 100/total_width %>%; border: none;"></td>
<% end %>
</tr>
<% end %>
<tr class="header">
<td class="quantityhead"><%= "[#{@amount_mfu_unit.shortname}]" %></td>