python - MongoDB search for each dict in list in collection -

-

I have archive where list has dicts < / Code> and I want to find if a particular word has two specific key: value .

For example, I want to find find_one where my name is a word which includes a specific first and last name: 

  {"name "," "", "First name": "alias", "first name": "bob", "last name": "jones", "age": "34", "gender": "m"}, "Last name": "56", "gender": "F"}, {"first name": "Bob", "last name" is a record with "Bombay's Smith" or not To see that "Smith", "age": "19", "gender": "m"},]}   
 and last name, I am:  
  ago = 'Bob' final = 'Smith' nameExists = db.user.find_one ({'$ and': [{'names.first name': First, '   
 
  
 Post-text "itemprop =" text "> 
 Although it is mentioned that in reality there is no operator required, in both ways this is not the query that you want. Consider the following:  
  db.user.find_one ({'names.firstName': 'alice', 'names.lastName': 'jones'})   
 It actually  does  match the given record because "Jones" There are two elements of "first name" equal to equal "aliis" and "last name" But surely the problem here is simple that there is no real element in the array, in which there is a sub-document for those two values.  
 To match where the "both" criteria are given in an array element, you have to use the operator. This query condition is applied to the "element" of the array.  
  db.user.find_one ({'names': {'$ elemMatch': {'firstName': 'alice', 'last name': 'Smith'}})   
 And of course if you tried "Alice" and "Jones" then it does not match because in reality no element is involved in that operation.

Comments

Post a Comment

Popular posts from this blog

php - PDO bindParam() fatal error -

-
I am trying to learn PDO, now I have written this small code, but it gives me a serious error: < P> Fatal error: Call a member function at a non-object dot () ... $ con = new mysqli ("127.0.0.1", "root", "", "csvdangercheck"); $ Query = $ con- & gt; ("Id,` var1`, `var2`) values ​​(" id,: var1,: var2) ";); $ query- & gt; bypass pattern (': id', $ id); $ query- & gt; BindParam (': var1', $ VAL1); $ Query- & gt; bindParam (': var2', $ val2); $ Query-> Executed (); I Trying to use print_r ($ con-> errorInfo ()) but Fatal error: Undefined method mysqli :: errorInfo ( ) ... can someone tell me what am I missing? Flaffeh said, you have PDO Missing Mysqy, try it: $ con = new PDO ('mysql: host = 127.0.0.1; dbname = csvdangercheck', 'root', '');
Read more

logging - How can I log both the Request.InputStream and Response.OutputStream traffic in my ASP.NET MVC3 Application for specific Actions? -

-
For a specific set of tasks, I need to log in to the incoming request inputstream as well as outgoing response. is. I am using an ActionFilterAttribute for this and overriding the OnActionExecuted and OnResultExecuted methods. So I'm starting with this idea ... Public category ActionLoggerAttribute: ActionFilterArrbit {Public Override Zero On-Offed Execution (ActionActioned Contact Filter Filter) {base.OnActionAxecuted (FilterContext); HttpRequestBase request = filterContext.HttpContext.Request; // TODO: Log the request. InputStream} Public Override Zero OnResultExecuted (ResultExecutedContext FilterContext) {base.OnResultExecuted (filterContext); HTTPRPSPointBase Response = FilterContacts Hpptex response; // TODO: Log on Response.OutputStream}} Ideally I'll hook it up with enterprise library logging because I'm already using it for error logging. Am I reaching the input and output stream at the right time? Can I easily use the Enterprise Library to log i
Read more

java - Why my included JSP file won't get processed correctly? -

-
I am trying to create Java web framework (and learning), and on the basis of 'Code Generator In the process of making the material view of the database in the process of development, I stumbled into a difficulty, which I do not know how to solve it. First of all, I want the following index.jsp : & lt; Body & gt; Use all pages to be created. & Lt;% @ include file = "header.jsp"% & gt; & Lt; Hours / & gt; & Lt;% @ included file = "body.jsp"%> & Lt; Hours / & gt; & Lt;% @ include file = "footer.jsp"% & gt; & Lt; / Body & gt; And, in body.jsp , I should have it like this: & lt; Jsp: include page = "$ {Application_modul}"%> Where application_modul is an attribute defined in its controller: request.setAttribute ("application_modul", "USER_ACCOUNT \\ ' View_user_account.jsp "); This file can be found properly, but the processed JSP does
Read more