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What is causing this ActiveRecord::ReadOnlyRecord error?

...s automatically inferred only if :joins was specified without an explicit :select nor an explicit (or finder-scope-inherited) :readonly option (see the implementation of set_readonly_option! in active_record/base.rb for Rails 2.3.4, or the implementation of to_a in active_record/relation.rb and of c...
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How to get all Errors from ASP.Net MVC modelState?

... Using LINQ: IEnumerable<ModelError> allErrors = ModelState.Values.SelectMany(v => v.Errors); share | improve this answer | follow | ...
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html (+css): denoting a preferred place for a line break

... Works great - when it is important, that chars like "-" non break. Example: Perikles <span class="avoidwrap">(um 500-429 v.Chr.)</span> – Sarah Trees May 19 '15 at 17:37 ...
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Add a properties file to IntelliJ's classpath

... Try this: Go to Project Structure. Select your module. Find the folder in the tree on the right and select it. Click the Sources button above that tree (with the blue folder) to make that folder a sources folder. ...
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Replace all non-alphanumeric characters in a string

I have a string with which i want to replace any character that isn't a standard character or number such as (a-z or 0-9) with an asterisk. For example, "h^&ell`.,|o w]{+orld" is replaced with "h*ell*o*w*orld". Note that multiple characters such as "^&" get replaced with one asterisk. How would I go...
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How does the String class override the + operator?

...sion (§15.9): If T is boolean, then use new Boolean(x). If T is char, then use new Character(x). If T is byte, short, or int, then use new Integer(x). If T is long, then use new Long(x). If T is float, then use new Float(x). If T is double, then use new Double(x). This ref...
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ASP.NET MVC Html.DropDownList SelectedValue

...m: I had the following: Controller: ViewData["DealerTypes"] = Helper.SetSelectedValue(listOfValues, selectedValue) ; View <%=Html.DropDownList("DealerTypes", ViewData["DealerTypes"] as SelectList)%> Changed by the following: View <%=Html.DropDownList("DealerTypesDD", ViewData["De...
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How to select the last record of a table in SQL?

This is a sample code to select all records from a table. Can someone show me how to select the last record of that table? ...
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ASP.NET MVC How to convert ModelState errors to json

... You can put anything you want to inside the select clause: var errorList = (from item in ModelState where item.Value.Errors.Any() select item.Value.Errors[0].ErrorMessage).ToList(); EDIT: You can extract multiple errors into separate list items by a...
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Encrypt Password in Configuration Files? [closed]

...nt keyLength = 128; SecretKeySpec key = createSecretKey(password.toCharArray(), salt, iterationCount, keyLength); String originalPassword = "secret"; System.out.println("Original password: " + originalPassword); String encryptedPassword = encrypt(orig...