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Doctrine does not return null for NULL values when you use get magic methods
I have a Symfony application configured with Doctrine, and I have designed a one-to-many relationship between two models: a Item belongs to a Customer, which is an alias for sfGuardUser.[详细]
2023-04-12 00:05 分类：问答ocaml null keyword: once but no more?
At the ocaml toplevel (version 3.11.2), this simple expression is giving me an error: # let a = [] in if null a then 0 else 1;;[详细]
2023-04-11 19:42 分类：问答null undeclared identifier Error
I dont know what happened as this was running grand a few days ago but now im getting an error about an undelcared null identifier in the detectcircle() method. if(p==null){return;} I dont know whats[详细]
2023-04-11 19:14 分类：问答INSERT NULL if a field is left blank (decimal) MySQL/PHP
I have a if NULL echo \"Message\" else $value. There is some JavaScript hiding the input field, so they check it and enter the value.[详细]
2023-04-11 15:21 分类：问答MDB2 quotes -- null values?
According to the PEAR MDB2 documentation, I can optionally quote or not quote values using the third parameter:[详细]
2023-04-11 15:03 分类：问答Flex: How can I catch something before I get the error "Cannot access a property or method of a null object reference"
So, I have a dataprovider that, when the module isn\'t be used, is set to an empty arrayCollection.Then, when the module is ready to be used, the dataprovider is changed to an array collection full of[详细]
2023-04-11 14:47 分类：问答Validation C# constructor object null dispose
I am new to object oriented prog in c#.So kindly bear me. I dont want to create object, if this.OrderCost() is more than 10000.00.How to drop this object. Is it correct to do validtion here. What is t[详细]
2023-04-11 11:59 分类：问答I keep getting a can't convert nil to String but can't debugy in Rails 3
How can I code this so that the exception will output which method and specific instance of contact is the problem?[详细]
2023-04-11 08:39 分类：问答JSON element is null resulting in "Uncaught TypeError: <unknown message TemplateExecutionError>" for JQote2
Background:I have two dropdowns on my page and when they are changed, I am using the JQote plugin by AEFXX to populate a table with some of the returned JSON data.In the JSON response, some of the Use[详细]
2023-04-11 06:28 分类：问答Consequences of drawable.setCallback(null);
While trying to implement small in-memory cache of Drawables, I learned that to avoid memory leaks after closing activity I need to unbind those Drawables: set their callback to null.[详细]
2023-04-11 04:25 分类：问答
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