Hello everybody,

today I want to share how to fight with error like 

Error 22 An object reference is required for the non-static field, method, or property 'PX.Data.PXSelectBase<Acumatica DAC>.Select(params object[])' bla bla bla

As usually it means that you try to use this in selector of Extension class. Just replace this at Base or Base2 and your problem will go away.

for example 

CR.Location customerLoc = PXSelect<CR.Location, Where<CR.Location.bAccountID, Equal<Required<CR.Location.bAccountID>>, 

                            And<CR.Location.locationID, Equal<Required<CR.Location.locationID>>>>>.Select(this, customer.BAccountID, customer.DefLocationID);

should be 

CR.Location customerLoc = PXSelect<CR.Location, Where<CR.Location.bAccountID, Equal<Required<CR.Location.bAccountID>>, 

                            And<CR.Location.locationID, Equal<Required<CR.Location.locationID>>>>>.Select(Base, customer.BAccountID, customer.DefLocationID);

and your code will be compiled again

Hello readers of mine blog.

Today I want to share with everybody who wants to make unit test of Acumatica how I achieved it.

For unit testing I use NUnit. In order to start my work with Acumatica Unit testing I wrote the following class:

    [TestFixture]
    public class CATranEntryExtTest
    {
        [Test]
        public void TestAutonumber()
        {
            var gr = PXGraph.CreateInstance<CATranEntry>();
        }
    }

Now with help of Resharper let's start debugging:

And here we go, the first error message:

PX.Data.PXProviderException : Provider cannot be instantiated.

   at PX.Data.PXDatabase.get_Provider() in c:\Builders\4_10-2013_12_16-23_17_15-Full\Scripts\BuildTemp\NetTools\PX.Data\Database\Provider.cs: line 388

   at PX.Data.PXDatabase.GetSlot(String key, Type[] tables) in c:\Builders\4_10-2013_12_16-23_17_15-Full\Scripts\BuildTemp\NetTools\PX.Data\Database\Provider.cs: line 802

   at PX.Data.PXGraph.a(Type A_0) in c:\Builders\4_10-2013_12_16-23_17_15-Full\Scripts\BuildTemp\NetTools\PX.Data\Graph\Graph.cs: line 2684

   at PX.Data.PXGraph.CreateInstance(Type graphType) in c:\Builders\4_10-2013_12_16-23_17_15-Full\Scripts\BuildTemp\NetTools\PX.Data\Graph\Graph.cs: line 112

   at PX.Data.PXGraph.CreateInstance() in c:\Builders\4_10-2013_12_16-23_17_15-Full\Scripts\BuildTemp\NetTools\PX.Data\Graph\Graph.cs: line 57

So, it means we need to add some connection string to the site.  How to add it exactly? What proper way? I tried two next options:

1.

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <connectionStrings>
    <remove name="ProjectX" />
    <add name="ProjectX" providerName="System.Data.SqlClient" connectionString="Data Source=DIO222\DIO195;Initial Catalog=Ac20140117;Integrated Security=False;User ID=sa;Password=1234" />
  </connectionStrings>
</configuration>

This way also:

<?xml version="1.0" encoding="utf-8" ?>
<configuration>
  <connectionString value="Data Source=DIO222\DIO195;Initial Catalog=Ac20140117;Integrated Security=False;User ID=sa;Password=1234"></connectionString>
</configuration>

and if you suppose, that error message changed, you are wrong. It didn't go away.

Then I addressed support of Acumatica, and here is the answer:

 you just need this config. That is not necessary to create and use real database. You just need connectionString specified.

In case if with answer you know how to add connectionString to app.config for unit test and it will work, let me congratulate you. For me you are genious. Sadly to admit, I'm not. After a while, I decided to do crazy idea - copy/paste web.config into App.config. Imagine scale of my surprise when I noticed, that error went away!!!!!!

Now I got the next error message:

PX.Data.PXNotLoggedInException : You are not currently logged in.

Do you have any idea how to log in? 

In order to understand this idea lets go to Login.aspx.cs, maybe we can locate there something. For example method NormalLogin:

    private void NormalLogin(string[] companies)
    {
        if (companies != null && companies.Length == 1)
        {
            cmbCompany.Items.Clear();
            cmbCompany.Items.Add(companies[0]);
        }

        string loginText = txtUser.Text.Trim();
        string userName = PXDatabase.Companies.Length > 0 ? loginText + "@" +
            (cmbCompany.SelectedIndex != -1 ? cmbCompany.SelectedItem.Value : PXDatabase.Companies[0]) : loginText;

        if (!PXLogin.LoginUser(ref userName, txtPass.Text))
        {
            // we will change password during next round-trip
            PXContext.Session.SetString("ChangingPassword", txtPass.Text);

            DisablingUserPassword();
            EnablingChangingPassword();

            this.Master.Message = string.Empty;
        }
        else
        {
            PXLogin.InitUserEnvironment(userName, cmbLang.SelectedValue);
        }
    }

I'm considered about mehtod PXLogin.LoginUser. Lets use reflector in order to look there:

using (PXLoginScope pxLoginScope = new PXLoginScope(userName, new string[0]))using (PXLoginScope pxLoginScope = new PXLoginScope(userName, new string[0]))

I just think what can mean PXLoginScope. But maybe name is self-explanatory. Some scope where some login considered as working?

Lets write code similar to what reflector showed:

[Test]
public void TestAutonumber()
{
     using (var pxLoginScope = new PXLoginScope("someuserName", new string[0]))
     {
          var gr = PXGraph.CreateInstance<CATranEntry>();
     }
}

and now error message is 

PX.Data.PXUndefinedCompanyException : Unable determine proper company id for the request.

At least we can see, that error message changes during our thinking process :). 

All other conclusions were built on this code:

        MembershipUser membershipUser = (MembershipUser) null;
        try
        {
          if (Membership.ValidateUser(pxLoginScope.UserName, password))
          {
            membershipUser = Membership.GetUser(pxLoginScope.UserName);
            if (membershipUser != null)
            {
              pxLoginScope.UserName = membershipUser.UserName;
              userName = PXContext.PXIdentity.User.Identity.Name;
              if (pxLoginScope.CompanyName != null)
              {
                string[] rolesForUser = System.Web.Security.Roles.GetRolesForUser(pxLoginScope.UserName);
                if (rolesForUser == null || rolesForUser.Length == 0)
                  throw new PXException("You are not allowed to login to the company {0}.", new object[1]
                  {
                    (object) pxLoginScope.CompanyName
                  });
                else if (!Enumerable.Contains<string>((IEnumerable<string>) PXDatabase.AvailableCompanies, pxLoginScope.CompanyName))
                  throw new PXException("You are not allowed to login to the company {0}.", new object[1]
                  {
                    (object) pxLoginScope.CompanyName
                  });
              }
              if (PXLogin.c(pxLoginScope.UserName))
                return false;
              PXLogin.a(pxLoginScope.UserName, false);
              PXLogin.SetBranchID(pxLoginScope.UserName, pxLoginScope.CompanyName, pxLoginScope.Branch);
              PXSessionContextFactory.AuthenticateRequest();
              PXLicenseHelper.OnAuthenticate();
              return true;
            }

The function which has name a if to trust to reflector just updates some info in audit journal, and updates some info in db, which IMHO is not usable for unit test.

So, code, which I use now for initiating Unit test now looks like this:

    [TestFixture]
    public class CATranEntryExtTest
    {
        [Test]
        public void TestAutonumber()
        {
            string userName = "some user name in db";
            using (var pxLoginScope = new PXLoginScope(userName, new string[0]))
            {
                var membershipUser = (MembershipUser) null;
                // Membership.ValidateUser(pxLoginScope.UserName, "123");

                membershipUser = Membership.GetUser(pxLoginScope.UserName);
                if (membershipUser != null)
                {
                    pxLoginScope.UserName = membershipUser.UserName;
                    userName = PXContext.PXIdentity.User.Identity.Name;
                    if (pxLoginScope.CompanyName != null)
                    {
                        string[] rolesForUser = System.Web.Security.Roles.GetRolesForUser(pxLoginScope.UserName);
                        if (rolesForUser == null || rolesForUser.Length == 0)
                            throw new PXException("You are not allowed to login to the company {0}.", new object[1]
                                {
                                    (object) pxLoginScope.CompanyName
                                });
                        else if (
                            !Enumerable.Contains<string>((IEnumerable<string>) PXDatabase.AvailableCompanies,
                                                         pxLoginScope.CompanyName))
                            throw new PXException("You are not allowed to login to the company {0}.", new object[1]
                                {
                                    (object) pxLoginScope.CompanyName
                                });
                    }
                    PXLogin.SetBranchID(pxLoginScope.UserName, pxLoginScope.CompanyName, pxLoginScope.Branch);
                    var gr = PXGraph.CreateInstance<CATranEntry>();
                }
            }
          }
    }

At the end of execution gr looks like this:

Lets continue our way of unit testing for creating instance of our extension. This can be achieved via following way:

var accountsManager = gr.GetExtension<CATranEntryExt>();

Screenshot shows that we created instance of extension successfully:

Now I can test methods, which are inside of the extension CATranEntryExt.

I think it's enough for this article. If you have any comments, requests, wishes, critics, you are wormly welcome to express them.

Hello,

this post is dedicated to understanding how security in Acumatica works. If to be precisive security of accounts. 

Let's say you need in some way filter accounts for some user according to configuration at row level security screen ( GL104000 ).

In my case I had following records in database which correspondent to the following numbers:

Relation group mask : 16; 0; 0; 0

User group mask: 159; 96; 0; 0

Account group mask: 16; 0; 0; 0

How to join them? They are joined not by separated table, which has relations between groups and accounts or groups and users, but with usage of bit mask. It's very effective way to join and is much faster then holding adta in db. But the most complicated from viewpoint of understanding. Lets convert already mentioned numbers into bit masks:

Relation group mask :

00010000; 00000000; 00000000; 00000000

User group mask:

10011111; 11000000; 00000000; 00000000

Account group mask:

00010000; 00000000; 00000000; 00000000

From the bit mask you can notice that there is common bit between first byte in Account group mask and User group mask. Also there is common bit between "User group mask" and Relation group mask which means that user belongs to the group, and account belongs to the group. In order to work with them I wrote the following code:

 public List<Account> GetAvailableCashAccounts()
 {
     var result = new List<Account>();
     var userID = PXAccess.GetUserID();
     var user = GetUsers().First(u => u.PKID == userID);
     var allAccounts = GetAccounts();
     var groups = GetGroups();
     foreach (var account in allAccounts)
     {
           foreach (var relationGroup in groups)
           {
             for (var i = 0; i < relationGroup.GroupMask.Length && i < account.GroupMask.Length; i++)
               {
                  if ((relationGroup.GroupMask[i] & account.GroupMask[i]) == 0) continue;
                  if ((account.GroupMask[i] & user.GroupMask[i]) == 0 || result.Find(a => a.AccountCD.Equals(account.AccountCD)) != null) continue;
                  result.Add(account);
                 }
             }
       }
       return result;
}

As usually all your comments are welcomed, considered, premoderated, banned :)

Hello everybody.

Today I want to share how to copy Entty Types items in acumaticca from one instance into another instance.

The first step was to create import export settings in both instances of acumatica as described in acumatica manual similar to this screenshot:

The second step was to create project, which I decided to make as windows forms application with the following input fields:

For the button click at entry types write the following:

           var context = new ImportEt.Screen
                {
                    CookieContainer = new CookieContainer(), AllowAutoRedirect = true, EnableDecompression = true, Timeout = 1000000, Url = txtFrom.Text
                };

           var lgRes = context.Login(txtUserName.Text, txtPassword.Text);
           if (lgRes.Code == ErrorCode.OK)
           {
                var ca203000 = context.CA203000GetSchema();
                context.CA203000Clear();


                var export = context.CA203000Export(
                    new Command[]
                        {
                            ca203000.EntryType.EntryTypeID, ca203000.EntryType.DisbReceipt, ca203000.EntryType.EntryTypeDescription, ca203000.EntryType.Module, 
                              ca203000.EntryType.BusinessAccount, ca203000.EntryType.DefaultOffsetAccount, ca203000.EntryType.UseForPaymentsReclassification, 
                              ca203000.EntryType.ReclassificationAccount, ca203000.EntryType.DeductFromPayment },  null, 0, false, false);
                context.Url = txtTo.Text;
                var lgRes2 = context.Login(txtUserName.Text, txtPassword.Text);
                if (lgRes2.Code == ErrorCode.OK)
                {
                    ca203000 = context.CA203000GetSchema();
                    context.CA203000Clear();

                   
                    foreach (var et in export)
                    {
                        var ca203000ImportResults = context.CA203000Submit(
                            new Command[]
                                {
                                    new Value { Value = et[0], LinkedCommand = ca203000.EntryType.EntryTypeID},
                                    new Value { Value = et[1], LinkedCommand = ca203000.EntryType.DisbReceipt },
                                    new Value { Value = et[2], LinkedCommand = ca203000.EntryType.EntryTypeDescription },
                                    new Value { Value = et[3], LinkedCommand = ca203000.EntryType.Module },
                                    new Value { Value = et[4], LinkedCommand = ca203000.EntryType.BusinessAccount },
                                    new Value { Value = et[5], LinkedCommand = ca203000.EntryType.DefaultOffsetAccount },
                                    new Value { Value = et[6], LinkedCommand = ca203000.EntryType.UseForPaymentsReclassification },
                                    new Value { Value = et[7], LinkedCommand = ca203000.EntryType.ReclassificationAccount },
                                    new Value { Value = et[8], LinkedCommand = ca203000.EntryType.DeductFromPayment },
                                    ca203000.Actions.Save
                                });                        
                    }
                }
            }

All activities in Acumatica are done via interface context, whic is of type screen. 

As for me, the easiest way to get some data is via command "screenID" + export. In my code you can see construction CA203000Export. Inside of it you can point to id of screen, data of which you want to receive. For example CA203000Export.

The simplest way to send something to acumatica another instance is function "screen id" + "Submit". In my code you can see method CA203000Submit. Fields Value is self-explanatory as for me. The most important and hard to understand for me was LinkedCommand. It can be name of the field. That means values has to be putted into a field. It can be action name to push on and etc. 

Another important facet of mentioned code is Actions.Save. If it is not mentioned, than code will post data to web services, but they wil not be saved.

P.S.    source code

Hello,

today I want to share just simple record of how to join acumatica and your Active Directory.

For example you have the following data:

Active directory url:LDAP://RT1:389

User name yura_zale@dot.com, password: 123

For cases like this you need the following record in your web.config file:

<activeDirectory enabled="true" path="RT1:389" user="dot\yura_zale" password="123" />

Hello everybody,

this will be the first post in December. I want to boast that I got T101 certificate from acumatica univercity which proves that I'm certified developer for acumatica!!!!

you can download it from  Download

The screenshot of it:

Here I want to describe how to create such simple page like this:

For reading this manual father you need to know how to add page to sitemap in accumatica. If you need me to describe this process let me know, I assume it is not challenging process.

For staff like this you need ListView template and two other classes.

The first class is used to represent single view item in grid and second class intended for navigating in the db. 

Accumatica manual recomends the following location of those two classes:

1. Create separated project ( for example IG )

2. Inside of it create Folder with the name of pages folder ( for example Investigation )

3. Add reference to the dll PX.Data

4. Create class CountryMaint:

5. Build class library and add reference to newly created project.

I got something similar to this ( just without red rectangle ):

For now we have manager of records but without representation of records itself. Let's do it with tool called Data access class generator. Switch back to the file IG301000.aspx choose design mode and for the typename choose IG.Investigation.CountryMaint.