a8ebf6da7f
Added receipts_pdf.py Used Paragraph for displaying a large body of text. added the table Line breaks in the para text. font size adjusted. Improved the main table (alignments) and totals (converted to a table as well) Converted the footer into a table, and allowed for pagination. Added pagination to item data table. Handled wrapping of long descriptions into multiple lines. email attachment for both invoice and receipt added the currency from the settings Removed magic numeric literals and added meaningful variables. Added initial set of substitutions from configuration add defining logo paths via configuration Removed font dependencies. Will use the system default fonts which appear good enough to me. Alignment adjustments as per suggestions. Fixed the pep8 violations. Added comments to styling added the decimal points to the price values Cleanup. Docstrings. i18n the text in the pdf file fix pep8/pylint issues Changed the amounts from string to float. Overrode the 'pdf_receipt_display_name' property in the OrderItem subclass Donation. used the PaidCourseRegistration instead of the parent OrderItem to avoid course_id related exceptions. quality fixes added the test cases for the pdf made the changes in the pdf suggested by griff updated the pdf tests to assert the pdf content used the pdfminor library fix quality issues made the changes suggested by Will added the text file that says "pdf file not available. please contact support" in case pdf fails to attach in the email
75 lines
2.7 KiB
Python
75 lines
2.7 KiB
Python
"""
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Utility methods for the Shopping Cart app
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"""
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from django.conf import settings
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from microsite_configuration import microsite
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from pdfminer.pdfparser import PDFParser
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from pdfminer.pdfdocument import PDFDocument
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from pdfminer.pdfinterp import PDFResourceManager, PDFPageInterpreter
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from pdfminer.converter import PDFPageAggregator
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from pdfminer.pdfpage import PDFPage
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from pdfminer.layout import LAParams, LTTextBox, LTTextLine, LTFigure
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def is_shopping_cart_enabled():
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"""
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Utility method to check the various configuration to verify that
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all of the settings have been enabled
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"""
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enable_paid_course_registration = microsite.get_value(
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'ENABLE_PAID_COURSE_REGISTRATION',
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settings.FEATURES.get('ENABLE_PAID_COURSE_REGISTRATION')
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)
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enable_shopping_cart = microsite.get_value(
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'ENABLE_SHOPPING_CART',
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settings.FEATURES.get('ENABLE_SHOPPING_CART')
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)
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return (enable_paid_course_registration and enable_shopping_cart)
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def parse_pages(pdf_buffer, password):
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"""
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With an PDF buffer object, get the pages, parse each one, and return the entire pdf text
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"""
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# Create a PDF parser object associated with the file object.
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parser = PDFParser(pdf_buffer)
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# Create a PDF document object that stores the document structure.
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# Supply the password for initialization.
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document = PDFDocument(parser, password)
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resource_manager = PDFResourceManager()
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la_params = LAParams()
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device = PDFPageAggregator(resource_manager, laparams=la_params)
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interpreter = PDFPageInterpreter(resource_manager, device)
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text_content = [] # a list of strings, each representing text collected from each page of the doc
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for page in PDFPage.create_pages(document):
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interpreter.process_page(page)
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# receive the LTPage object for this page
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layout = device.get_result()
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# layout is an LTPage object which may contain
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# child objects like LTTextBox, LTFigure, LTImage, etc.
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text_content.append(parse_lt_objects(layout._objs)) # pylint: disable=protected-access
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return text_content
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def parse_lt_objects(lt_objects):
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"""
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Iterate through the list of LT* objects and capture the text data contained in each object
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"""
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text_content = []
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for lt_object in lt_objects:
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if isinstance(lt_object, LTTextBox) or isinstance(lt_object, LTTextLine):
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# text
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text_content.append(lt_object.get_text().encode('utf-8'))
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elif isinstance(lt_object, LTFigure):
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# LTFigure objects are containers for other LT* objects, so recurse through the children
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text_content.append(parse_lt_objects(lt_object._objs)) # pylint: disable=protected-access
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return '\n'.join(text_content)
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