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Make the rendering of Prawn templates idempotent #20

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Merged
jeremyevans merged 1 commit into from
Jul 13, 2025
Merged

Make the rendering of Prawn templates idempotent #20

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3 changes: 1 addition & 2 deletions lib/tilt/prawn.rb
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Original file line number Diff line number Diff line change
Expand Up @@ -10,11 +10,10 @@ class PrawnTemplate < Template
def prepare
@options[:page_size] = 'A4' unless @options.has_key?(:page_size)
@options[:page_layout] = :portrait unless @options.has_key?(:page_layout)
@engine = ::Prawn::Document.new(@options)
end

def evaluate(scope, locals, &block)
pdf = @engine
pdf = ::Prawn::Document.new(@options)
locals = locals.dup
locals[:pdf] = pdf
super
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1 change: 1 addition & 0 deletions test/tilt_prawntemplate.prawn
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@@ -1 +1,2 @@
pdf.text "Hello Template!"
pdf.start_new_page
7 changes: 6 additions & 1 deletion test/tilt_prawntemplate_test.rb
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Expand Up @@ -9,6 +9,10 @@ def initialize(pdf_raw)
def text
@reader.pages.map(&:text).join
end

def page_count
@reader.page_count
end

def page_attributes(page_num=1)
@reader.page(page_num).attributes
Expand Down Expand Up @@ -39,7 +43,8 @@ def page_attributes(page_num=1)
template = Tilt::PrawnTemplate.new("test/tilt_prawntemplate.prawn")
3.times do
output = _PdfOutput.new(template.render)
assert_includes output.text, "Hello Template!"
assert_equal 2, output.page_count
assert_equal output.text, "Hello Template!"
end
end

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