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  • CoreData: migration from 2 models

    - by Yola
    I have general app model, after was released any body can do plug-in for it, this plug-in can determine new db parts which merged with my general db. After some time i 'll release new db version^ and plug-in writers may release new version of their dbs. So i need map old version of merged db into new version. How i can do this?

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  • Can I Copy All the Wikis From One Trac To Another?

    - by William Leara
    We have an existing Trac installation for an old bunch of source code, and I'm creating a new Trac installation to support a new bunch of source code. Most of the info we've built up over time in the old Trac installation's wiki is equally relevant for the new Trac wiki. Is there a quick way to migrate the wiki data from the old Trac to the new Trac? Trac version = 0.10.4

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  • in python how to remove this \n from string or list

    - by pritesh modi
    this is my main string "action","employee_id","name" "absent","pritesh",2010/09/15 00:00:00 so after name coolumn its goes to new line but here i append to list a new line character is added and make it like this way data_list*** ['"action","employee_id","name"\n"absent","pritesh",2010/09/15 00:00:00\n'] here its append the new line character with absent but actually its a new line strarting but its appended i want to make it like data_list*** ['"action","employee_id","name","absent","pritesh",2010/09/15 00:00:00']

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  • Why does this Assert fail?

    - by Peter Goras
    IEnumerable<ReportReceipt> expected = new List<ReportReceipt>() { new ReportReceipt("fileName1","Hash1","some comments1") }; IEnumerable<ReportReceipt> actual = new List<ReportReceipt>() { new ReportReceipt("fileName1","Hash1","some comments1") }; Assert.IsTrue(expected.SequenceEqual(actual)); I'm running MSTest with VS 2008.

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  • C# Type Casting at Runtimefor Array.SetValue

    - by sprocketonline
    I'm trying to create an array using reflection, and insert values into it. I'm trying to do this for many different types so would like a createAndFillArray function capable of this : Type t1 = typeof(A); Type t2 = typeof(B); double exampleA = 22.5; int exampleB = 43; Array arrA = createAndFillArray(t1, exampleA); Array arrB = createAndFillArray(t2, exampleB); private Array createAndFillArray(Type t, object val){ Array arr = Array.CreateInstance( t, 1); //length 1 in this example only, real-world is of variable length. arr.SetValue( val, 0 ); //this causes the following error: "System.InvalidCastException : Object cannot be stored in an array of this type." return arr; } with the class A being as follows: public class A{ public A(){} private double val; public double Value{ get{ return val; } set{ this.val = value; } } public static implicit operator A(double d){ A a = new A(); a.Value = d; return a; } } and class B being very similar, but with int: public class B{ public B(){} private double val; public double Value{ get{ return val; } set{ this.val = value; } } public static implicit operator B(double d){ B b = new B(); b.Value = d; return b; } } I hoped that the implicit operator would have ensured that the double be converted to class A, or the int to class B, and the error avoided; but this is obviously not so. The above is used in a custom deserialization class, which takes data from a custom data format and fills in the corresponding .Net object properties. I'm doing this via reflection and at runtime, so I think both are unavoidable. I'm targeting the C# 2.0 framework. I've dozens, if not hundreds, of classes similar to A and B, so would prefer to find a solution which improved on the createAndFillArray method rather than a solution which altered these classes.

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  • Repeating a object that only occurs couple of times and has different values with htmlagilitypack c#.

    - by dtd
    I have a problem I cant seem to solve here. Lets say I have some html like beneth here that I want to parse. All this html is within one list on the page. And the names repeat themself like in the example I wrote. <li class = "seperator"> a date </li> <li class = "lol"> some text </li> <li class = "lol"> some text </li> <li class = "lol"> some text </li> <li class = "seperator"> a new date </li> <li class = "lol"> some text </li> <li class = "seperator"> a nother new date </li> <li class = "lol"> some text </li> <li class = "lol"> some text </li> I did manage to use htmlagility pack to parse every li object seperate, and almost formating it how I want. My print atm looks something like this: "a date" "some text" "some text" "some text" "some text" "a new date" "some text" "a nother new date " "some text" "some text" "some text" What I want to achive: "a date" "some text" "a date" "some text" "a date" "some text" "a date" "some text" "a new date" "some text" "a nother new date " "some text" "a nother new date " "some text" "a nother new date " "some text" But the problem is that beneath every seperator, the count of every lol object may vary. So one day, the webpage may have one lol object beneth date 1, and the next day it may have 10 lol objects. So I am woundering if there is an smart/easy way to somehow count the number of lol objects in between the seperators. Or if there is another way to figure this out? Within for example htmlagilitypack. And yes, I need the correct date in front of every lol object, not just infront the first one. This would have been a pice of cake if the seperator class would have ended beneath the last lol object, but sadly that is not the case... I dont think that I need to paste my code here, but basicly what I do is to parse the page, extract the seperators and lol objects and add them to a list, where I split them up to seperator and lol objects. Then I print it out to a file and since the seperator only occure 3 times(in the example) I will only get out 3 seperate dates.

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  • Is SQLite Manager refreshing itself properly?

    - by ahmet732
    I added new rows to my database through SQLiteManager but I cannot see those values in my tableview. My old values are seen. More interestingly, I deleted my database file but I can see my old values again in my tableview. When I created new database with new name, it sees that. How can I make it perceive new values?

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  • BASH: Checking for environment variables

    - by Hamza
    Hi folks, I am trying to check the value of an environment variable and depending on the value do certain things and it works fine as long as the variable is set. When it isn't though I get a whole bunch of errors (as BASH is trying to compare the string I specify with an undefined variable, I guess) I tried implementing an extra check to prevent it happening but no luck. The block of code I am using is: #!/bin/bash if [ -n $TESTVAR ] then if [ $TESTVAR == "x" ] then echo "foo" exit elif [ $TESTVAR == "y" ] then echo "bar" exit else echo "baz" exit fi else echo -e "TESTVAR not set\n" fi And this the output: $ export TESTVAR=x $ ./testenv.sh foo $ export TESTVAR=y $ ./testenv.sh bar $ export TESTVAR=q $ ./testenv.sh baz $ unset TESTVAR $ ./testenv.sh ./testenv.sh: line 5: [: ==: unary operator expected ./testenv.sh: line 9: [: ==: unary operator expected baz My question is, shouldn't 'unset TESTVAR' nullify it? It doesn't seem to be the case... Thanks.

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  • BroadcastReciever doesn't show SMS not Send or Not delivered

    - by user1657111
    While using broadcastreciver for checking sms status, it shows the toast when sms is sent but shows nothing when sms is not sent or delivered (im testing it by putting an abrupt number). the code im using is the one ive seen the most on every site of checking sms delivery status. But my code is only showing the status when sms is sent successfully. Can any one get a hint of what am i doing wrong ? I hav this method in doInBackground() and so obviously im using AsyncTask. Thanks guys public void send_SMS(String list, String msg, AtaskClass task) { String SENT = "SMS_SENT"; String DELIVERED = "SMS_DELIVERED"; SmsManager sms = SmsManager.getDefault(); PendingIntent sentPI = PendingIntent.getBroadcast(this, 0, new Intent(SENT), 0); PendingIntent deliveredPI = PendingIntent.getBroadcast(this, 0, new Intent(DELIVERED), 0); //---when the SMS has been sent--- registerReceiver(new BroadcastReceiver(){ @Override public void onReceive(Context context, Intent arg1) { switch (getResultCode()) { case Activity.RESULT_OK: Toast.makeText(context, "SMS sent", Toast.LENGTH_SHORT).show(); break; case SmsManager.RESULT_ERROR_GENERIC_FAILURE: Toast.makeText(context, "Generic failure", Toast.LENGTH_SHORT).show(); break; case SmsManager.RESULT_ERROR_NO_SERVICE: Toast.makeText(context, "No service", Toast.LENGTH_SHORT).show(); break; case SmsManager.RESULT_ERROR_NULL_PDU: Toast.makeText(context, "Null PDU", Toast.LENGTH_SHORT).show(); break; case SmsManager.RESULT_ERROR_RADIO_OFF: Toast.makeText(context, "Radio off", Toast.LENGTH_SHORT).show(); break; } } }, new IntentFilter(SENT)); //---when the SMS has been delivered--- registerReceiver(new BroadcastReceiver(){ @Override public void onReceive(Context context, Intent arg1) { switch (getResultCode()) { case Activity.RESULT_OK: Toast.makeText(context, "SMS delivered", Toast.LENGTH_SHORT).show(); break; case Activity.RESULT_CANCELED: Toast.makeText(context, "SMS not delivered", Toast.LENGTH_SHORT).show(); break; } } }, new IntentFilter(DELIVERED)); StringTokenizer st = new StringTokenizer(list,","); int count= st.countTokens(); int i =1; count = 1; while(st.hasMoreElements()) { // PendingIntent pi = PendingIntent.getActivity(this,0,new Intent(this, SMS.class),0); String tempMobileNumber = (String)st.nextElement(); //SmsManager sms = SmsManager.getDefault(); sms.sendTextMessage(tempMobileNumber, null, msg , sentPI, deliveredPI); Double cCom = ((double)i/count) * 100; int j = cCom.intValue(); task.doProgress(j); i++; count ++; } // class ends }

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  • Would this constructor be acceptable practice?

    - by Robb
    Let's assume I have a c++ class that have properly implemented a copy constructor and an overloaded = operator. By properly implemented I mean they are working and perform a deep copy: Class1::Class1(const Class1 &class1) { // Perform copy } Class1& Class1::operator=(const Class1 *class1) { // perform copy return *this; } Now lets say I have this constructor as well: Class1::Class1(Class1 *class1) { *this = *class1; } My question is would the above constructor be acceptable practice? This is code that i've inherited and maintaining.

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  • Why are there two implementations of std::sort (with and without a comparator) rather than one implementation with a default template parameter?

    - by PolyVox
    In my code I'm adopting a design strategy which is similar to some standard library algorithms in that the exact behavior can be customized by a function object. The simplest example is std::sort, where a function object can control how the comparison is made between objects. I notice that the Visual C++ provides two implementations of std::sort, which naturally involves code duplication. I would have imagined that it was instead possible to have only one implementation, and provide a default comparator (using operator< ) as a default template parameter. What is the rational behind two separate versions? Would my suggestion make the interface more complex in some way? Or result in confusing error messages when the object does not provide operator Thanks, David

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  • Generics and anonymous type

    - by nettguy
    I understood,normally generics is for compile time safe and allow us to keep strongly typed collection.Then how do generic allow us to store anonymous types like List<object> TestList = new List<object>(); TestList.Add(new { id = 7, Name = "JonSkeet" }); TestList.Add(new { id = 11, Name = "Marc Gravell" }); TestList.Add(new { id = 31, Name = "Jason" });

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  • C++ Why is the copy constructor implicitly called?

    - by ShaChris23
    Why is the Child class's copy constructor called in the code below? I mean, it automatically converts Base to Child via the Child copy constructor. The code below compiles, but shouldn't it not compile since I haven't provided bool Child::operator!=(Base const&)? class Base { }; class Child : public Base { public: Child() {} Child(Base const& base_) : Base(base_) { std::cout <<"should never called!"; } bool operator!=(Child const&) { return true; } }; void main() { Base base; Child child; if(child != base) std::cout << "not equal"; else std::cout << "equal"; }

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  • Rails nested form for belongs_to

    - by user1232533
    I'm new to rails and have some troubles with creating a nested form. My models: class User < ActiveRecord::Base belongs_to :company accepts_nested_attributes_for :company, :reject_if => :all_blank end class Company < ActiveRecord::Base has_many :users end Now i would like to create a new company from the user sign_up page (i use Devise btw) by given only a company name. And have a relation between the new User and new Company. In the console i can create a company for a existing User like this: @company = User.first.build_company(:name => "name of company") @company.save That works, but i can't make this happen for a new user, in my new user sign_up form i tried this (i know its wrong by creating a new User fist but im trying to get something working here..): <%= simple_form_for(resource, :as => resource_name, :html => { :class => 'form-horizontal' }, :url => registration_path(resource_name)) do |f| %> <%= f.error_notification %> <div class="inputs"> <% @user = User.new company = @user.build_company() %> <% f.fields_for company do |builder| %> <%= builder.input :name, :required => true, :autofocus => true %> <% end %> <%= f.input :email, :required => true, :autofocus => true %> <%= f.input :password, :required => true %> <%= f.input :password_confirmation, :required => true %> </div> <div class="form-actions"> <%= f.button :submit, :class => 'btn-primary', :value => 'Sign up' %> </div> I did my best to google for a solution/ example.. found some nested form examples but it's just not clear to me how to do this. Really hope somebody can help me with this. Any help on this would be appreciated. Thanks in advance! Greets, Daniel

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  • Using a class with const data members in a vector

    - by Max
    Given a class like this: class Foo { const int a; }; Is it possible to put that class in a vector? When I try, my compiler tells me it can't use the default assignment operator. I try to write my own, but googling around tells me that it's impossible to write an assignment operator for a class with const data members. One post I found said that "if you made [the data member] const that means you don't want assignment to happen in the first place." This makes sense. I've written a class with const data members, and I never intended on using assignment on it, but apparently I need assignment to put it in a vector. Is there a way around this that still preserves const-correctness?

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  • Creating a patch file from a diff of 2 folders

    - by karatchov
    I made some changes to an open source project without taking time to create proper patch files. Now, the maintainer of the project released a new version, and among new and edited files, there are a bunch of renamed files. Whats is the best way to apply my changes to the new version ? I'm completely new to diff/patch use, and If I can get it done with git, it would be better.

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  • C++ - Print Out Objects From Set

    - by John Smith
    If I have a C++ set, declaration set personList; with iterator, set::const_iterator location; how can I print out the contents of the set? They are all person objects, and I have overridden the operator<< for Person. The line that errors is: cout << location and it's in a basic for loop. Netbeans gives the following error: proj.cpp:78: error: no match for ‘operator<<’ in ‘std::cout << location’ so it looks like it wants an override for the iterator's <<. Basically, I am taking objects that used to be stored in an array format, but are now in a set. What is the equivalent to cout << array[i] for sets?

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  • how to create internal frame?

    - by joseph
    I created class NewProject extends JInternalFrame. Then I create New...Action named "NEW", localised in File menu. I put code NewProject p = new NewProject(); p.setVisible(true); to the ActionPerformed method of the action. But when I run the module and click "NEW" in file menu, nothing appears. Where can be problem?

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  • non-scalar type requested

    - by lego69
    can somebody please help me with an error conversion from `A' to non-scalar type `B' requested I have class A and derived from it B, but I have problems with these rows: A a(1); A *pb = new B(a); B b = *pb; //here I have an error thanks in advance for any help class A { protected: int player; public: A(int initPlayer = 0); A(const A&); A& operator=(const A&); virtual ~A(){}; virtual void foo(); void foo() const; operator int(); }; class B: public A { public: B(int initPlayer): A(initPlayer){}; ~B(){}; virtual void foo(); };

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  • Google Map + MarkerClusterer only takes place when map completely zooms out

    - by user415795
    The clustering works but somehow it only takes place at the maximum zoom out(the largest view with all nations), the moment I zoom in by 1 value, the clustering icon changes back to markers. I try with all kinds of values on the maxZoom and gridSize clusterer options with no help. Can someone please kindly advice. Thanks. <script language="javascript" type="text/javascript"> var markersArray = []; var mc = null; var markersArray = []; var mc = null; var map; var mapOptions; var geocoder; var infoWindow; var http_request = false; var lat = 0; var lng = 0; var startingZoom = 7; var lowestZoom = 1; // The lower the number, the more places can be seen on within the bounds. var highestZoom = 8; function mapLoad() { geocoder = new google.maps.Geocoder(); infoWindow = new google.maps.InfoWindow(); mapOptions = { zoomControl: true, zoom: 2, minZoom: lowestZoom, maxzoom: highestZoom, draggable: true, scrollwheel: true, disableDoubleClickZoom: true, mapTypeId: google.maps.MapTypeId.ROADMAP }; map = new google.maps.Map(document.getElementById('map'), mapOptions); } $(document).ready(function () { var searchUrl; var locations; // Place the user's current location marker on the map var Location = new google.maps.LatLng(1.340319, 103.743744); var Location2 = new google.maps.LatLng(1.322347, 103.757881); createMarker('1', Location, 'My Location', '', '', '', '/Images/home.png'); createMarker('1', Location2, 'My Location', '', '', '', '/Images/bb.png'); var bounds = new google.maps.LatLngBounds(); bounds.extend(gameLocation); map.fitBounds(bounds); }); // Create the marker with address information function createMarker(actId, point, address1, address2, town, postcode, icon) { var marker = new google.maps.Marker({ map: map, icon: icon, position: point, title: address1, animation: google.maps.Animation.DROP }); marker.metadata = { id: actId }; markersArray.push(marker); mc = new MarkerClusterer(map, markersArray); return marker; } </script>

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  • Library for Dataflow in C

    - by msutherl
    How can I do dataflow (pipes and filters, stream processing, flow based) in C? And not with UNIX pipes. I recently came across stream.py. Streams are iterables with a pipelining mechanism to enable data-flow programming and easy parallelization. The idea is to take the output of a function that turns an iterable into another iterable and plug that as the input of another such function. While you can already do this using function composition, this package provides an elegant notation for it by overloading the operator. I would like to duplicate a simple version of this kind of functionality in C. I particularly like the overloading of the operator to avoid function composition mess. Wikipedia points to this hint from a Usenet post in 1990. Why C? Because I would like to be able to do this on microcontrollers and in C extensions for other high level languages (Max, Pd*, Python). * (ironic given that Max and Pd were written, in C, specifically for this purpose – I'm looking for something barebones)

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  • Not a statement?

    - by abelenky
    I have a simple little code fragment that is frustrating me: HashSet<long> groupUIDs = new HashSet<long>(); groupUIDs.Add(uid)? unique++ : dupes++; At compile time, it generates the error: Only assignment, call, increment, decrement, and new object expressions can be used as a statement HashSet.Add is documented to return a bool, so the ternary (?) operator should work, and this looks like a completely legitimate way to track the number of unique and duplicate items I add to a hash-set. When I reformat it as a if-then-else, it works fine. Can anyone explain the error, and if there is a way to do this as a simple ternary operator?

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  • Borland problem: typing

    - by b3y4z1d
    When I type in Borland C++,it types over the line,not on a new one.That means that every time I press enter,it doesn't give me a fresh,new,empty line in which to type but goes to the one underneath. And there when I try to type I expect the symbols,numbers and letters to move as I add text behind them in the line,but the new symbols keep overwriting the old ones.Sort of deleting them and replacing them with the new characters as I type. Could it be some kinda option I've activated unvoluntarily?

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