2298d36bed
- Create Economist SubmissionTracking package correctly: * mainArticle = full blog post content * coverLetter = 216-word SIR— letter * Links to blog post via blogPostId - Archive 'Letter to The Economist' from blog posts (it's the cover letter) - Fix date display on article cards (use published_at) - Target publication already displaying via blue badge Database changes: - Make blogPostId optional in SubmissionTracking model - Economist package ID: 68fa85ae49d4900e7f2ecd83 - Le Monde package ID: 68fa2abd2e6acd5691932150 Next: Enhanced modal with tabs, validation, export 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
95 lines
3.1 KiB
Python
95 lines
3.1 KiB
Python
"""Chart part objects, including Chart and Charts."""
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from __future__ import annotations
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from typing import TYPE_CHECKING
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from pptx.chart.chart import Chart
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from pptx.opc.constants import CONTENT_TYPE as CT
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from pptx.opc.constants import RELATIONSHIP_TYPE as RT
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from pptx.opc.package import XmlPart
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from pptx.parts.embeddedpackage import EmbeddedXlsxPart
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from pptx.util import lazyproperty
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if TYPE_CHECKING:
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from pptx.chart.data import ChartData
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from pptx.enum.chart import XL_CHART_TYPE
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from pptx.package import Package
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class ChartPart(XmlPart):
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"""A chart part.
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Corresponds to parts having partnames matching ppt/charts/chart[1-9][0-9]*.xml
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"""
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partname_template = "/ppt/charts/chart%d.xml"
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@classmethod
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def new(cls, chart_type: XL_CHART_TYPE, chart_data: ChartData, package: Package):
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"""Return new |ChartPart| instance added to `package`.
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Returned chart-part contains a chart of `chart_type` depicting `chart_data`.
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"""
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chart_part = cls.load(
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package.next_partname(cls.partname_template),
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CT.DML_CHART,
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package,
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chart_data.xml_bytes(chart_type),
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)
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chart_part.chart_workbook.update_from_xlsx_blob(chart_data.xlsx_blob)
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return chart_part
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@lazyproperty
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def chart(self):
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"""|Chart| object representing the chart in this part."""
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return Chart(self._element, self)
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@lazyproperty
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def chart_workbook(self):
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"""
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The |ChartWorkbook| object providing access to the external chart
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data in a linked or embedded Excel workbook.
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"""
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return ChartWorkbook(self._element, self)
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class ChartWorkbook(object):
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"""Provides access to external chart data in a linked or embedded Excel workbook."""
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def __init__(self, chartSpace, chart_part):
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super(ChartWorkbook, self).__init__()
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self._chartSpace = chartSpace
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self._chart_part = chart_part
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def update_from_xlsx_blob(self, xlsx_blob):
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"""
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Replace the Excel spreadsheet in the related |EmbeddedXlsxPart| with
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the Excel binary in *xlsx_blob*, adding a new |EmbeddedXlsxPart| if
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there isn't one.
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"""
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xlsx_part = self.xlsx_part
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if xlsx_part is None:
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self.xlsx_part = EmbeddedXlsxPart.new(xlsx_blob, self._chart_part.package)
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return
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xlsx_part.blob = xlsx_blob
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@property
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def xlsx_part(self):
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"""Optional |EmbeddedXlsxPart| object containing data for this chart.
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This related part has its rId at `c:chartSpace/c:externalData/@rId`. This value
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is |None| if there is no `<c:externalData>` element.
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"""
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xlsx_part_rId = self._chartSpace.xlsx_part_rId
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return None if xlsx_part_rId is None else self._chart_part.related_part(xlsx_part_rId)
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@xlsx_part.setter
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def xlsx_part(self, xlsx_part):
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"""
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Set the related |EmbeddedXlsxPart| to *xlsx_part*. Assume one does
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not already exist.
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"""
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rId = self._chart_part.relate_to(xlsx_part, RT.PACKAGE)
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externalData = self._chartSpace.get_or_add_externalData()
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externalData.rId = rId
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