entityreference | 易学教程

xml document having external references

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问题 Is there a way wherein an xml document can refer to a variable/element which is defined in some other xml file on the same machine? 回答1: Sure, like this: outer.xml: <!DOCTYPE outer [ <!ELEMENT outer ANY> <!ENTITY inner SYSTEM "inner.xml" > ]> <outer> &inner; &inner; </outer> inner.xml <inner/> 来源： https://stackoverflow.com/questions/10780482/xml-document-having-external-references

Entity Framework - Inserting entity with multiple models and databases

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问题 I have my domain split into multiple Entity Framework models. I have some shared entities that span multiple models (named Lookup), however, these are replaced with "using" references using the methods described in Working With Large Models In Entity Framework. However, what makes my case slightly more unique is that I'm also separating these models into multiple databases (one per model). I'm having a problem inserting one of my shared entities into my common DB. It's failing with the error:

Drupal 7: how to filter view content (with entity reference field) based on current page content

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问题 in my drupal 7 I have 2 content-types like these: ContentA ContentB (with a field Entity Reference to ContentA) In the front-end detail page of ContentA, I would love to show a block/view with a list of ContentB whose Entity Reference field is set to the current ContentA. I made a view of type Block and added it correctly to the page, but I cannot filter ContentB based on the current ContentA. Could you help me? Thanks 回答1: You should add a contextual filter for the value you will use for

How do I include &, <, > etc in XML attribute values

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I want to create an XML file which will be used to store the structure of a Java program. I am able to successfully parse the Java program and create the tags as required. The problem arises when I try to include the source code inside my tags, since Java source code may use a vast number of entity reference and reserved characters like & , < , > , & . I am not able to create a valid XML. My XML should go like this: <?xml version="1.0"?> <prg name="prg_name"> <class name= "class_name> <parent>parent class</parent> <interface>Interface name</interface> . . . <method name= "method_name">

Which are the HTML, and XML, special characters?

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What are the special reserved character entities in HTML and in XML? The information that i have says: HTML: & (replace with & ) < (replace with < ) > (replace with > ) " (replace with " ) ' (replace with ' ) XML: < (replace with < ) > (replace with > ) & (replace with & ) ' (replace with ' ) " (replace with " ) But i cannot find documentation on either of these. The W3C does mention, in Extensible Markup Language (XML) 1.0 (Fifth Edition) , certain predefined entity references. But it says that these entities are predefined (in the same way that © is predefined); not that they must

How do I include &, <, > etc in XML attribute values

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问题 I want to create an XML file which will be used to store the structure of a Java program. I am able to successfully parse the Java program and create the tags as required. The problem arises when I try to include the source code inside my tags, since Java source code may use a vast number of entity reference and reserved characters like & , < , > , & . I am not able to create a valid XML. My XML should go like this: <?xml version="1.0"?> <prg name="prg_name"> <class name= "class_name> <parent

Which are the HTML, and XML, special characters?

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问题 What are the special reserved character entities in HTML and in XML? The information that i have says: HTML: & (replace with & ) < (replace with < ) > (replace with > ) " (replace with " ) ' (replace with ' ) XML: < (replace with < ) > (replace with > ) & (replace with & ) ' (replace with ' ) " (replace with " ) But i cannot find documentation on either of these. The W3C does mention, in Extensible Markup Language (XML) 1.0 (Fifth Edition), certain predefined entity references. But