remove 3.9 bw compat In cw 3.9, interfaces are deprecated and replaced with adapters, yielding a lot of bw compat in many places -- most if this patch is concerned with the interface bw compat - cwvreg: interface cleanup - doc/adapters.rst: interface cleanup - entities/adapters.py, wfobjs.py: interfaces bw compat - entity.py: interfaces bw compat, also get_value, delete, attr_metadata, has_perm, set_related_cache, clear_related_cache, clear_related_cache, related_rql - predicates.py: score_interfaces & implements - interfaces.py & mixins.py: 100% gone - view.py: implement_adapter_compat, unwrap_adapter_compat - calendar.py, editcontroller.py, ibreadcrumbs.py, navigation.py, xmlrss.py: interface bw compat - treeview.py: salvage one function from mixins.py Related to #2782004.

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"""This module compare the Schema on the file system to the one in the database"""

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from cStringIO import StringIO

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from cubicweb.web.schemaviewer import SchemaViewer

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from logilab.common.ureports import TextWriter

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import difflib

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viewer = SchemaViewer()

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layout_db = viewer.visit_schema(schema, display_relations=True)

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layout_fs = viewer.visit_schema(fsschema, display_relations=True)

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writer = TextWriter()

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stream_db = StringIO()

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stream_fs = StringIO()

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writer.format(layout_db, stream=stream_db)

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writer.format(layout_fs, stream=stream_fs)

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stream_db.seek(0)

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stream_fs.seek(0)

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db = stream_db.getvalue().splitlines()

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fs = stream_fs.getvalue().splitlines()

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open('db_schema.txt', 'w').write(stream_db.getvalue())

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open('fs_schema.txt', 'w').write(stream_fs.getvalue())

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#for diff in difflib.ndiff(fs, db):

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#    print diff