Refactoring. Native support to ODF files added. A new control tag '{% tablerow_tag %}'. This tag replace the row internal XML with the control-flow a control tag near it. Used for table genation.
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Christopher Ramírez
parent
4973bb36ab
commit
8d5104be4c
2 changed files with 100 additions and 43 deletions
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@ -1,2 +0,0 @@
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<?xml version="1.0" encoding="UTF-8"?>
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<office:document-content xmlns:office="urn:oasis:names:tc:opendocument:xmlns:office:1.0" xmlns:style="urn:oasis:names:tc:opendocument:xmlns:style:1.0" xmlns:text="urn:oasis:names:tc:opendocument:xmlns:text:1.0" xmlns:table="urn:oasis:names:tc:opendocument:xmlns:table:1.0" xmlns:draw="urn:oasis:names:tc:opendocument:xmlns:drawing:1.0" xmlns:fo="urn:oasis:names:tc:opendocument:xmlns:xsl-fo-compatible:1.0" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:dc="http://purl.org/dc/elements/1.1/" xmlns:meta="urn:oasis:names:tc:opendocument:xmlns:meta:1.0" xmlns:number="urn:oasis:names:tc:opendocument:xmlns:datastyle:1.0" xmlns:svg="urn:oasis:names:tc:opendocument:xmlns:svg-compatible:1.0" xmlns:chart="urn:oasis:names:tc:opendocument:xmlns:chart:1.0" xmlns:dr3d="urn:oasis:names:tc:opendocument:xmlns:dr3d:1.0" xmlns:math="http://www.w3.org/1998/Math/MathML" xmlns:form="urn:oasis:names:tc:opendocument:xmlns:form:1.0" xmlns:script="urn:oasis:names:tc:opendocument:xmlns:script:1.0" xmlns:ooo="http://openoffice.org/2004/office" xmlns:ooow="http://openoffice.org/2004/writer" xmlns:oooc="http://openoffice.org/2004/calc" xmlns:dom="http://www.w3.org/2001/xml-events" xmlns:xforms="http://www.w3.org/2002/xforms" xmlns:xsd="http://www.w3.org/2001/XMLSchema" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xmlns:rpt="http://openoffice.org/2005/report" xmlns:of="urn:oasis:names:tc:opendocument:xmlns:of:1.2" xmlns:xhtml="http://www.w3.org/1999/xhtml" xmlns:grddl="http://www.w3.org/2003/g/data-view#" xmlns:tableooo="http://openoffice.org/2009/table" xmlns:field="urn:openoffice:names:experimental:ooo-ms-interop:xmlns:field:1.0" xmlns:formx="urn:openoffice:names:experimental:ooxml-odf-interop:xmlns:form:1.0" xmlns:css3t="http://www.w3.org/TR/css3-text/" office:version="1.2"><office:scripts/><office:font-face-decls><style:font-face style:name="Lohit Hindi1" svg:font-family="'Lohit Hindi'"/><style:font-face style:name="Liberation Serif" svg:font-family="'Liberation Serif'" style:font-family-generic="roman" style:font-pitch="variable"/><style:font-face style:name="Liberation Sans" svg:font-family="'Liberation Sans'" style:font-family-generic="swiss" style:font-pitch="variable"/><style:font-face style:name="Lohit Hindi" svg:font-family="'Lohit Hindi'" style:font-family-generic="system" style:font-pitch="variable"/><style:font-face style:name="WenQuanYi Micro Hei" svg:font-family="'WenQuanYi Micro Hei'" style:font-family-generic="system" style:font-pitch="variable"/></office:font-face-decls><office:automatic-styles/><office:body><office:text><text:sequence-decls><text:sequence-decl text:display-outline-level="0" text:name="Illustration"/><text:sequence-decl text:display-outline-level="0" text:name="Table"/><text:sequence-decl text:display-outline-level="0" text:name="Text"/><text:sequence-decl text:display-outline-level="0" text:name="Drawing"/></text:sequence-decls><text:p text:style-name="Standard">Hello {{ record.name }}</text:p><text:p text:style-name="Standard"/><text:p text:style-name="Standard">You are from {{ record.country }}</text:p><text:p text:style-name="Standard"/><text:p text:style-name="Standard">{% if record.age %}{{ record.age }}{% else %}Unknow age{% endif %}</text:p></office:text></office:body></office:document-content>
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141
renders.py
141
renders.py
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@ -43,6 +43,10 @@ except ImportError:
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PARAGRAPH_TAG = '{% paragraph_tag %}'
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TABLEROW_TAG = '{% tablerow_tag %}'
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OOO_PARAGRAPH_NODE = 'text:p'
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OOO_TABLEROW_NODE = 'table:table-row'
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class BaseRender():
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"""
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@ -55,24 +59,24 @@ class BaseRender():
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def __init__(self, xml_doc, **template_args):
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self.template_vars = template_args
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self.xml_document = xml.dom.minidom.parse(xml_doc)
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self.xml_document = xml.dom.minidom.parseString(xml_doc)
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body = self.xml_document.getElementsByTagName('office:body')
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self.content_body = body and body[0]
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# ------------------------------------------------------------------------@
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def get_paragraph_parent(self, node):
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def get_parent_of(self, node, parent_type):
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"""
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Returns the first node's parent with name "text:p"
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Returns the first node's parent with name of parent_type
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If parent "text:p" is not found, returns None.
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"""
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if hasattr(node, 'parentNode'):
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if node.parentNode.nodeName.lower() == 'text:p':
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if node.parentNode.nodeName.lower() == parent_type:
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return node.parentNode
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else:
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return get_paragraph_parent(node.parentNode)
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return self.get_parent_of(node.parentNode, parent_type)
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else:
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return None
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@ -84,57 +88,66 @@ class BaseRender():
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Once the XML have been prepared, this routine is called
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to do the actual rendering.
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"""
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# print self.xml_document.toprettyxml()
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template = TemplateEngine(self.xml_document.toxml())
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return template.render(**self.template_vars)
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# -----------------------------------------------------------------------
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def scan_child_nodes(self, nodes):
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def prepare_document(self):
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"""
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Search in every paragraph node in the document.
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"""
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paragraphs = self.content_body.getElementsByTagName('text:p')
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for paragraph in paragraphs:
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self.scan_paragraph_child_nodes(paragraph)
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def scan_paragraph_child_nodes(self, nodes):
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"""
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"""
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if nodes.hasChildNodes():
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child_nodes = nodes.childNodes
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for node in child_nodes:
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if node.nodeType == node.TEXT_NODE:
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node_text = node.data.lower()
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# replace a paragraph node with contained tags
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# if tag PARAGRAPH_TAG is in paragraph content.
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if node_text.find(PARAGRAPH_TAG) > -1:
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# Get this node text:p parent
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paragraph_node = self.get_paragraph_parent(node)
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paragraph_parent = paragraph_node.parentNode
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# Discar PARAGRAPH_TAG
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pgraph_node_text = \
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paragraph_node.toxml().replace(PARAGRAPH_TAG, '')
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# replace text:p node's XML with its contained templates tags.
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new_node_text = \
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' '.join(re.findall('(\{.*?\})', pgraph_node_text))
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new_node = xml_document.createTextNode(new_node_text)
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paragraph_parent.replaceChild(new_node, paragraph_node)
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self.handle_special_tags(node)
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else:
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if node.hasChildNodes():
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scan_child_nodes(node)
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self.scan_paragraph_child_nodes(node)
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# -----------------------------------------------------------------------
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def handle_special_tags(self):
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def handle_special_tags(self, node):
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"""
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"""
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paragraphs = self.content_body.getElementsByTagName('text:p')
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for paragraph in paragraphs:
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self.scan_child_nodes(paragraph)
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node_text = node.data.lower()
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replace_node = None
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if node_text.find(PARAGRAPH_TAG) > -1:
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replace_node = self.get_parent_of(node, OOO_PARAGRAPH_NODE)
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note_text = replace_node.toxml().replace(PARAGRAPH_TAG, '')
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elif node_text.find(TABLEROW_TAG) > -1:
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replace_node = self.get_parent_of(node, OOO_TABLEROW_NODE)
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note_text = replace_node.toxml().replace(TABLEROW_TAG, '')
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if replace_node is not None:
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paragraph_parent = replace_node.parentNode
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new_node_text = \
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' '.join(re.findall('(\{.*?\})', note_text))
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new_node = self.xml_document.createTextNode(new_node_text)
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paragraph_parent.replaceChild(new_node, replace_node)
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# -----------------------------------------------------------------------
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@ -145,22 +158,68 @@ class BaseRender():
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to parse template engine tags
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"""
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self.handle_special_tags()
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self.prepare_document()
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return self.render_with_engine()
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# -----------------------------------------------------------------------
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if __name__ == "__main__":
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data = {
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'name': u'Christopher Ramirez',
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'country': 'Nicaragua'
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from datetime import datetime
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document = {
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'datetime': datetime.now()
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}
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render = BaseRender('content.xml', record=data)
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print render.render()
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countries = [
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{'country': 'United States', 'capital': 'Washington'},
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{'country': 'England', 'capital': 'London'},
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{'country': 'Japan', 'capital': 'Tokio'},
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{'country': 'Nicaragua', 'capital': 'Managua'},
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{'country': 'Argentina', 'capital': 'Buenos aires'},
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{'country': 'Chile', 'capital': 'Santiago'},
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{'country': 'Mexico', 'capital': 'MExico City'},
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]
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# ODF is just a zipfile
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input = zipfile.ZipFile( 'simple_template.odt', "r" )
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# we cannot write directly to HttpResponse, so use StringIO
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# text = StringIO.StringIO()
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text = open('rendered.odt', 'wb')
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# output document
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output = zipfile.ZipFile( text, "w" )
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# go through the files in source
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for zi in input.filelist:
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out = input.read( zi.filename )
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if zi.filename == 'content.xml':
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render = BaseRender(out, trademark={'owner':{}}, document=document, countries=countries)
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out = render.render().encode('ascii', 'xmlcharrefreplace')
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elif zi.filename == 'mimetype':
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# mimetype is stored within the ODF
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mimetype = out
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output.writestr( zi.filename, out,
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zipfile.ZIP_DEFLATED )
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# close and finish
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input.close()
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output.close()
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print "Template rendering finished! Check rendered.odt file."
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# output_file.open('rendered.odt', 'w')
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# output_file.write(output)
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# output_file.close()
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# render = BaseRender('content.xml', record=data)
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# print render.render()
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# xml_document = xml.dom.minidom.parse('content.xml')
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# doc_body = xml_document.getElementsByTagName('office:body')
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