mongodb - How to store TimeStamp? Is there automatic field for CreatedOn -

-

I am new to Mongo DB. I have to create code and document, but there is no timestamp field. Any way to insert documents automatically is 

  db.createCollection ("country"); // created archive db.countries.insert ({"short_name": "air force", "country_name": "Afghanistan"}); // created document db.countries.find () {"_id": ObjectId ("53d1d5bcb8173a625961ff34"), "short_name": "air force", "country_name": "Afghanistan"}   
 How do you do when I actually use the default "made_on" in my documents using Cx PHP?   
 
 
 Mongodb will not automatically insert anything except the '_id' field. You can take the time to merge with the '_id' field like this -  
  Object ID ("507c7f79bcf86cd7994f6c0e"). GetTimestamp ()   
 The result will appear if you want to include these fields. -    
  isadatt ( "2012-10-15T21: 26: 17Z")   
  •  
     If you are on Mongo Shell then the new date will be included () .  
      db.mycollection.insert ({'created_on': new date ()})    
  •  
     And if you use raw PHP             
     Hope it helps: -)   

     




  
    •

    Comments

    Post a Comment

    Popular posts from this blog

    ios - Adding an SKSpriteNode to SKScene from a child SKSpriteNode -

    -
    I have a SKScene where I am adding an SKSpriteNode I have subclassed the SKSpriteNode class to create this node. In the subclass I am defining some SKActions on Sprite. What do I want to do when the end of this phantom ends the SKAction sequence, then I add a new Prayer node to this scene. How is this possible. The following code is mine: The code for the sequence is that I'm running on the Scansprinitode subclass (TEMissileNode): - SKAction * moveDown = [SKAction moveToY: Self.position.y - 20 Duration: 0.2]; SKAction * animation = [SKAction animateWithTextures: textures timePerFrame: time / 7]; SKAction * moveMissileProjectile = [SKAction Moving: Pointoffscreen Term: Time]; SKAction * group = [SKAction group: @ [animation, movement projectile]]; SKAction * Sequence = [SKAction Sequence: @ [Hilldown, Group, [SKAction removalFromParent]]]; [Self run action: sequence]; From the main scene, I call those actions that execute these tasks TEMissileNode * missile = [tmissil...
    Read more

    Matlab transpose a table vector -

    -
    An embarrassing simple question seems to be, but how can I move a Matlab table vector? aTableT = aTable '; I tried a standard syntax for the simple interaction of a line vector to a line vector aTable : ATableT = reshape (aTable, 1, Height (aTable)); and aTableT = rot90 (aTable); According to the head, the last time table should work for table, see. However, I get this error code: Error type in using table / permit (line 396) Undefined function 'permute' for the input arguments. Error in rot 90 (line 29) b = magnitude (b, [2 1 3: ndims (a)]); NB: fliplr is not useful either pretty sure I have covered clear angles - any ideas? Thanks! Try changing your table into an array, move it, then back to a table In other words, try doing this: aTableArray = table2array (aTable); ATableT = array 2table (aTableArray. '); I have also read the document for rot90 , and it says that rot90 is definitely working for tables Do, and I find you...
    Read more

    c# - Textbox not clickable but editable -

    -
    I have a small form with 10 text boxes, I have set them in the correct tab order. I want them on my tab service I was wondering if there is a way to set the text box so that they can be selected for editing until they are tabbed. That is ... I do not want the end user to edit the text box to click on them, I just want to make them editable through tabu. this should do the trick public partial category poor text box: Text Box {Safe Override Zero WndProc (Ref: Message Message) {if (m.msg == (Int) WM.LBUTTONDOWN) {Return; // mount down events} base.WndProc (ref m); }} Window message enum can be found. How to do this without anherizing: text box : class EatMouseDown: netwindows {safe override zero WndProc (ref message message) {if (m.msg == (int) WM.LBUTTONDOWN) {return; } Base.WandProc (Ref M); }} Safe Override Zero Onload (EventEurge E) {base.OnLoad (e); How to do this without any part: left a clean part, whatever is important, this can be a buggy but it works R...
    Read more