Hi, If I have a utility component whose initializaiton depends on the availability of another utility, the initialization fails with a Component Lookup Error. It seems that in the ZCML file, the utility components are first created, and then at the end of the whole configuration, they are registered. So if in the initilization code of utility B I need to look up a utility A, the ZCML configuration will fail.
As an example, I have a utility that reference a z3c.zalchemy engine. class MyUtility(object): implements(IMyUtility) def __init__(self): engine = getUtility(z3c.zalchemy.interfaces.IAlchemyEngineUtility, name=u'TheEngine').getEngine() And the configuration goes like this: <configure xmlns:alchemy="http://namespaces.zalchemy.org/alchemy" <alchemy:engine name="TheEngine" url="some db url" /> <utility factory=".utility.MyUtility" permission="zope.Public" provides=".interfaces.IMyUtility" /> </configure> The problem is that although the z3c eninge object is created before the 'utility' directive is executed, it is not registered and therefore can not be looked up when the 'utility' directive tries to create the MyUtility object. How does one usually solve such interdependencies? -- Hong Yuan 大管家网上建材超市 装修装潢建材一站式购物 http://www.homemaster.cn
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