work in progress: generic report configuration: basic field definitions

git-svn-id: svn://svn.cy55.de/Zope3/src/cybertools/trunk@3776 fd906abe-77d9-0310-91a1-e0d9ade77398

composer/report/README.txt

@@ -9,3 +9,14 @@ Report Management
 
   >>> manager = ReportManager()
 
+  >>> rep01 = manager.addReport(Report('testreport'))
+
+The base report provides a fairly basic collection of field definitions:
+
+  >>> len(rep01.fields)
+  1
+  >>> rep01.fields.keys()
+  ['label']
+  >>> rep01.fields.get('label')
+  <cybertools.composer.report.field.Field object ...>
+  >>> rep01.fields.get('title')

composer/report/base.py

@@ -26,6 +26,7 @@ from zope.interface import implements
 
 from cybertools.composer.base import Component, Element, Compound
 from cybertools.composer.base import Template
+from cybertools.composer.report.field import Field
 from cybertools.composer.report.interfaces import IReportManager, IReport
 from cybertools.util.jeep import Jeep
 from cybertools.util.randomname import generateName
@@ -56,6 +57,10 @@ class ReportManager(object):
         return id not in self.reports.keys()
 
 
+label = Field('label', u'Label',
+                u'A short text that identifies a row for humans.')
+
+
 class Report(Template):
 
     implements(IReport)
@@ -64,5 +69,8 @@ class Report(Template):
     type = 'generic'
     manager = None
 
+    fields = Jeep((label,))
+
     def __init__(self, name):
         self.name = name
+

composer/report/field.py

@@ -0,0 +1,59 @@
+#
+#  Copyright (c) 2010 Helmut Merz helmutm@cy55.de
+#
+#  This program is free software; you can redistribute it and/or modify
+#  it under the terms of the GNU General Public License as published by
+#  the Free Software Foundation; either version 2 of the License, or
+#  (at your option) any later version.
+#
+#  This program is distributed in the hope that it will be useful,
+#  but WITHOUT ANY WARRANTY; without even the implied warranty of
+#  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+#  GNU General Public License for more details.
+#
+#  You should have received a copy of the GNU General Public License
+#  along with this program; if not, write to the Free Software
+#  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+#
+
+"""
+Implementation of report field definitions.
+
+$Id$
+"""
+
+from datetime import datetime
+from time import strptime, strftime
+from zope.interface import implements
+from zope.cachedescriptors.property import Lazy
+from zope.component import adapts
+from zope import component
+from zope.i18n.locales import locales
+
+from cybertools.composer.base import Component
+from cybertools.composer.report.interfaces import IField
+from cybertools.composer.report.interfaces import fieldTypes
+
+
+class Field(Component):
+
+    implements(IField)
+
+    vocabulary = None
+    default = None
+    instance_name = None
+
+    def __init__(self, name, title=None, fieldType='textline', **kw):
+        assert name
+        self.__name__ = name
+        title = title or name
+        self.fieldType = fieldType
+        super(Field, self).__init__(title, __name__=name, **kw)
+        self.title = title
+        for k, v in kw.items():
+            setattr(self, k, v)
+
+    @property
+    def name(self):
+        return self.__name__
+

composer/report/interfaces.py

@@ -25,6 +25,7 @@ $Id$
 from zope.interface import Interface, Attribute
 from zope.i18nmessageid import MessageFactory
 from zope import schema
+from zope.schema.vocabulary import SimpleVocabulary, SimpleTerm
 
 from cybertools.composer.interfaces import ITemplate, IComponent
 from cybertools.composer.interfaces import IInstance
@@ -33,7 +34,7 @@ _ = MessageFactory('cybertools.composer')
 
 
 class IReportManager(Interface):
-    """ A manager (or container) for complex messages.
+    """ A manager (or container) for reports.
     """
 
     title = schema.TextLine(
@@ -47,9 +48,13 @@ class IReportManager(Interface):
         """ Add a report.
         """
 
+    def getReport(id):
+        """ Retrieve a report.
+        """
 
-class IReport(Interface):
-    """ A complex message that may be expanded using instance data.
+
+class IReport(ITemplate):
+    """ A configurable report.
     """
 
     identifier = schema.ASCIILine(
@@ -71,3 +76,48 @@ class IReport(Interface):
 
     manager = Attribute('The manager of this message object')
 
+    fields = Attribute('An ordered collection of all field definitions '
+                    'available for this report.')
+    renderers = Attribute('An ordered collection of renderers for this report.')
+
+
+class FieldType(SimpleTerm):
+
+    instanceName = ''
+
+    def __init__(self, value, token=None, title=None, **kw):
+        super(FieldType, self).__init__(value, token, title)
+        self.name = value
+        for k, v in kw.items():
+            setattr(self, k, v)
+
+fieldTypes = SimpleVocabulary((
+    FieldType('textline', 'textline', u'Textline'),
+    FieldType('number', 'number', u'Number', instanceName='number'),
+    FieldType('date', 'date', u'Date', instanceName='date'),
+))
+
+
+class IField(IComponent):
+    """ Describes a field that may be used in query criteria, for specifying
+        columns or cells for display, or for sorting.
+    """
+
+    name = schema.ASCII(
+                title=_(u'Field name'),
+                description=_(u'The internal name of the field'),
+                required=True,)
+    title = schema.TextLine(
+                title=_(u'Title'),
+                description=_(u'The title or label of the field'),
+                required=True,)
+    description = schema.Text(
+                title=_(u'Description'),
+                description=_(u'A brief description of the field'),
+                required=False,)
+    fieldType = schema.Choice(
+                title=_(u'Field type'),
+                description=_(u'The type of the field'),
+                required=True,
+                default='textline',
+                vocabulary=fieldTypes,)