How to merge sObject's data to String

Question

I need help to write a method which will do some kind of string merge. I have an object having some data. It may be any object.Like this:

Account oAccount = [select id,Name from Account limit 1];

And I have a certain string like this:

String sTemp = "Name belongs to {oAccount.Name}";

I need to call a method. Suppose the method name is mergeString.

mergeString(oAccount, sTemp);

The method should be able to return merged strings like :

"Name belongs to Kumar" {If Account name is Kumar}

How to achieve this?

Answer 1

Since you have the merging field at the end of the string, wouldn't be easier to append it rather than replace it? You can create a method that will append strings:

public String mergeString(sObject recordObject, String eixstingString)
{
    // Some sObjects like Contact and Lead have FirstName and others have Name field
    return eixstingString + (recordObject.get('Name') == null ? (String)recordObject.get('FirstName') : (String)recordObject.get('Name'));
}

Then you can call it like this:

String sTemp = 'Name belongs to ';
Account oAccount = [select Id, Name FROM Account LIMIT 1];
String mergedString = mergeString(oAccount, sTemp); 

If you had the placeholder in the middle of the string:

String sTemp = 'Name belongs to {recordName} and there is more static text here';

Then you could use the replace method:

public String mergeString(sObject recordObject, String eixstingString)
{
    // Some sObjects like Contact and Lead have FirstName and others have Name field
    return eixstingString.replace('{recordName}', (recordObject.get('Name') == null ? (String)recordObject.get('FirstName') : (String)recordObject.get('Name')));
}

UPDATE: Based on your comments below it looks like you're trying to dynamically replace a placeholder with the field specified there. I think this final method should get you going:

public String mergeString(sObject recordObject, String eixstingString)
{
    String templateString = eixstingString.substring(eixstingString.indexOf('{'), eixstingString.indexOf('}') + 1); // results in {Account.AccountNumber}
    String fieldName = eixstingString.substring(eixstingString.indexOf('.') + 1, eixstingString.indexOf('}')); // results in "AccountNumber"
    return eixstingString.replace(templateString, (String)recordObject.get(fieldName));
}

Keep in mind that this will not work if you have multiple ., { or } characters in your template. Also you must query the field that is specified in the template.

Answer 2

This is a very simple piece of code

public string mergeString(oAccount, sTemp) {
  string str = 'Name belongs to '+oAccount; //or str = sTemp+' '+oAccount;
  return str;
}

Answer 3

you can try below code in the merge string method

String mergedString = sTemp + oAccount.Name;
Return mergedString;