VARCHAR requiere una longitud cuando se procesa en MySQL

Question

Apr 06, 2011, 06:43 PM

VARCHAR requiere una longitud cuando se procesa en MySQL

Tengo una instancia de construcción con pas.plugins.sqlalchemy. Aparece en la lista de instalación, pero al instalarlo se produce un error.

Aquí está la definición de ZCML:

<configure xmlns="http://namespaces.zope.org/zope" xmlns:db="http://namespaces.zope.org/db">
<include package="z3c.saconfig" file="meta.zcml" />
<db:engine xmlns="http://namespaces.zope.org/db" name="pas" url="mysql://webadmin:password@rcs-mysql-dev/estep" />
<db:session xmlns="http://namespaces.zope.org/db" name="pas.plugins.sqlalchemy" engine="pas" />
</configure>

Traceback es:

Traceback (innermost last):
  Module ZPublisher.Publish, line 127, in publish
  Module ZPublisher.mapply, line 77, in mapply
  Module ZPublisher.Publish, line 47, in call_object
  Module Products.CMFQuickInstallerTool.QuickInstallerTool, line 575, in installProducts
  Module Products.CMFQuickInstallerTool.QuickInstallerTool, line 512, in installProduct
   - __traceback_info__: ('pas.plugins.sqlalchemy',)
  Module Products.GenericSetup.tool, line 330, in runAllImportStepsFromProfile
   - __traceback_info__: profile-pas.plugins.sqlalchemy:install
  Module Products.GenericSetup.tool, line 1085, in _runImportStepsFromContext
  Module Products.GenericSetup.tool, line 999, in _doRunImportStep
   - __traceback_info__: pas.plugins.sqlalchemy.install
  Module pas.plugins.sqlalchemy.setuphandlers, line 46, in install
  Module sqlalchemy.schema, line 2148, in create_all
  Module sqlalchemy.engine.base, line 1698, in create
  Module sqlalchemy.engine.base, line 1740, in _run_visitor
  Module sqlalchemy.sql.visitors, line 83, in traverse_single
  Module sqlalchemy.engine.ddl, line 42, in visit_metadata
  Module sqlalchemy.sql.visitors, line 83, in traverse_single
  Module sqlalchemy.engine.ddl, line 58, in visit_table
  Module sqlalchemy.engine.base, line 1191, in execute
  Module sqlalchemy.engine.base, line 1241, in _execute_ddl
  Module sqlalchemy.sql.expression, line 1413, in compile
  Module sqlalchemy.engine.base, line 702, in compile
  Module sqlalchemy.engine.base, line 715, in process
  Module sqlalchemy.sql.visitors, line 54, in _compiler_dispatch
  Module sqlalchemy.sql.compiler, line 1152, in visit_create_table
  Module sqlalchemy.dialects.mysql.base, line 1282, in get_column_specification
  Module sqlalchemy.engine.base, line 761, in process
  Module sqlalchemy.sql.visitors, line 54, in _compiler_dispatch
  Module sqlalchemy.sql.compiler, line 1450, in visit_string
  Module sqlalchemy.dialects.mysql.base, line 1520, in visit_VARCHAR
InvalidRequestError: VARCHAR requires a length when rendered on MySQL

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