284 lines
10 KiB
Python
Executable file
284 lines
10 KiB
Python
Executable file
#
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# Copyright (c) 2012 Helmut Merz helmutm@cy55.de
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, write to the Free Software
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# Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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"""
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Report result sets and related classes.
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"""
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from copy import copy
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from zope.cachedescriptors.property import Lazy
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from cybertools.composer.interfaces import IInstance
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from cybertools.composer.report.base import BaseQueryCriteria
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from cybertools.util.jeep import Jeep
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class BaseRow(object):
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def __init__(self, context, parent):
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self.context = context
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self.parent = parent
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self.data = {}
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self.sequenceNumber = 0
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self.groupNumbers = dict()
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self.groupSequenceNumber = 0
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self.cssClass = 'row'
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def getRawValue(self, attr):
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return self.data.get(attr)
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class TotalsRow(BaseRow):
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pass
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class Row(BaseRow):
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attributeHandlers = {}
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cssClass = u''
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def getRawValue(self, attr):
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return self.attributeHandlers.get(
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attr, self.getContextAttr)(self, attr)
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@staticmethod
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def getContextAttr(obj, attr):
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return getattr(obj.context, attr)
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def getGroupFields(self):
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return [self.getRawValue(f.name) for f in
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self.parent.context.fields if 'group' in f.executionSteps]
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@Lazy
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def displayedColumns(self):
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return self.parent.context.getActiveOutputFields()
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@Lazy
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def allColumns(self):
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return self.parent.context.getAllFields()
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def useRowProperty(self, attr):
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return getattr(self, attr)
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class GroupHeaderRow(BaseRow):
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sourceField = ''
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def getRawValue(self, attr):
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return self.data.get(attr, u'')
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@Lazy
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def displayedColumns(self):
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fields = self.parent.context.getActiveOutputFields()
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for col in self.headerColumns:
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for idx, f in enumerate(fields):
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if f.name == col.name:
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fields[idx] = col
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return fields
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class SubTotalsRow(BaseRow):
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def getRawValue(self, attr):
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return self.data.get(attr, u'')
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@Lazy
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def displayedColumns(self):
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fields = self.parent.context.getActiveOutputFields()
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if not self.subTotalsGroupColumns:
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return fields
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for col in self.subTotalsGroupColumns:
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for idx, f in enumerate(fields):
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if f.name == col.name:
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fields[idx] = col
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return fields
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class ResultSet(object):
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def __init__(self, context, data,
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rowFactory=Row, headerRowFactory=GroupHeaderRow,
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sortCriteria=None, queryCriteria=BaseQueryCriteria(),
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limits=None):
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self.context = context # the report or report instance
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self.data = data
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self.rowFactory = rowFactory
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self.headerRowFactory = headerRowFactory
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self.sortCriteria = sortCriteria
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self.queryCriteria = queryCriteria
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self.limits = limits
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self.totals = TotalsRow(None, self)
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def getHeaderRow(self, row, columns):
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headerRow = self.headerRowFactory(None, self)
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headerRow.cssClass = 'headerRow'
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headerRow.headerColumns = []
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for c in columns:
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if c.output:
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headerRow.data[c.output] = c.getRawValue(row)
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headerRow.sourceField = c.name
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headerColumn = copy(c)
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headerColumn.__name__ = c.output
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headerColumn.cssClass = c.cssClass
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headerRow.headerColumns.append(headerColumn)
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if headerColumn.groupHeaderColspan is not None:
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colNames = [col.name for col in self.displayedColumns]
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nextColumns = [col for col in self.displayedColumns
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if colNames.index(col.name) > colNames.index(c.output)]
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for i in range(headerColumn.groupHeaderColspan - 1):
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nextColumn = copy(nextColumns[i])
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nextColumn.groupHeaderHidden = True
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headerRow.headerColumns.append(nextColumn)
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return headerRow
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def getSubTotalsRow(self, gf, row, columns, values):
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if not gf.name in ','.join([','.join(c.totals) for c in columns]).split(','):
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return None
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subTotalsRow = SubTotalsRow(None, self)
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subTotalsRow.subTotalsGroupColumns = []
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subTotalsRow.cssClass = 'subTotalsRow'
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for idx, c in enumerate(columns):
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subTotalsRow.data[c.name] = values[idx]
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if gf in self.subTotalsGroupColumns:
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if gf.totalsDescription is None:
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display = gf.getDisplayValue(row)
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if isinstance(display, dict):
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display = display.get('title')
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subTotalsRow.data[gf.output] = u'SUMME: ' + display
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else:
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v = gf.totalsDescription.getDisplayValue(row)
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if isinstance(v, dict):
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v = v.get('title', '')
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if v is None:
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v = u''
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subTotalsRow.data[gf.totalsDescription.output] = v
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if gf.groupHeaderColspan is not None:
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colNames = [col.name for col in self.displayedColumns]
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for col in self.displayedColumns:
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sCol = copy(col)
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if colNames.index(col.name) > colNames.index(gf.output):
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if colNames.index(col.name) < colNames.index(gf.output) + gf.groupHeaderColspan:
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sCol.groupHeaderHidden = True
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if col.name == gf.output:
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sCol.groupHeaderColspan = gf.groupHeaderColspan
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subTotalsRow.subTotalsGroupColumns.append(sCol)
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return subTotalsRow
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def getResult(self):
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result = [self.rowFactory(item, self) for item in self.data]
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result = [row for row in result if self.queryCriteria.check(row)]
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if self.sortCriteria:
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result.sort(key=lambda x:
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[f.getSortValue(x) for f in self.sortCriteria])
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if self.groupColumns:
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res = []
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groupValues = [None for f in self.groupColumns]
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subTotals = [[0.0 for f in stc] for stc in self.subTotalsColumns]
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lastRow = None
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for row in result:
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subTotalsRows = []
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headerRows = []
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for idx, f in enumerate(self.groupColumns):
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value = f.getRawValue(row)
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if value != groupValues[idx]:
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# TODO: loop through all lower-level fields
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# for j, f in enumerate(self.groupColumns)[idx:]:
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# # use idx+j for correct indexing
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groupValues[idx] = value
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headerRows.append(self.getHeaderRow(row, (f,) + f.outputWith))
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if lastRow is not None and f.getDisplayValue(lastRow):
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subTr = self.getSubTotalsRow(f, lastRow,
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self.subTotalsColumns[idx], subTotals[idx])
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if subTr is not None:
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subTotalsRows.append(subTr)
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subTotals[idx] = [0.0 for f in self.subTotalsColumns[idx]]
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for subTotalsRow in reversed(subTotalsRows):
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res.append(subTotalsRow)
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for headerRow in headerRows:
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res.append(headerRow)
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res.append(row)
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for idx, sc in enumerate(self.subTotalsColumns):
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for idx2, f in enumerate(sc):
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subTotals[idx][idx2] += f.getValue(row,
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ignoreTotals=True)
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lastRow = row
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if lastRow is not None:
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subTotalsRows = []
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for idx, f in enumerate(self.groupColumns):
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if f.getDisplayValue(lastRow):
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subTr = self.getSubTotalsRow(f, lastRow,
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self.subTotalsColumns[idx], subTotals[idx])
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if subTr is not None:
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subTotalsRows.append(subTr)
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for subTotalsRow in reversed(subTotalsRows):
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res.append(subTotalsRow)
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result = res
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if self.limits:
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start, stop = self.limits
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result = result[start:stop]
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number = 0
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groupNumbers = dict()
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groupSequenceNumber = 0
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for idx, row in enumerate(result):
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if not isinstance(row, (GroupHeaderRow, SubTotalsRow)):
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row.sequenceNumber = number + 1
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number += 1
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row.groupNumbers = copy(groupNumbers)
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row.groupSequenceNumber = copy(groupSequenceNumber)
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groupSequenceNumber = groupSequenceNumber + 1
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elif isinstance(row, GroupHeaderRow):
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sourceField = row.sourceField
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groupNumbers[sourceField] = \
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groupNumbers.get(sourceField, 0) + 1
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groupSequenceNumber = 0
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return result
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@Lazy
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def result(self):
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return self.getResult()
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def __iter__(self):
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return iter(self.result)
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def first(self):
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if len(self.result) > 0:
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return self.result[0]
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return self.rowFactory(None, self)
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@Lazy
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def displayedColumns(self):
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return Jeep(self.context.getActiveOutputFields())
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@Lazy
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def groupColumns(self):
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return self.context.getGroupFields()
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@Lazy
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def subTotalsColumns(self):
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return self.context.getSubTotalsFields()
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@Lazy
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def subTotalsGroupColumns(self):
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return self.context.getSubTotalsGroupFields()
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def getOutputColumnsForField(self, f):
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return self.context.getOutputFieldsForField(f)
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