while actively learning Play2.0 I am stuck with creating a tag. In the sample application, called computer-database, the following helper is created in the list template:
#****************************************
* Helper generating navigation links *
****************************************#
#link(newPage:Int, newSortBy:String) = #{
var sortBy = currentSortBy
var order = currentOrder
if(newSortBy != null) {
sortBy = newSortBy
if(currentSortBy == newSortBy) {
if(currentOrder == "asc") {
order = "desc"
} else {
order = "asc"
}
} else {
order = "asc"
}
}
// Generate the link
controllers.orders.routes.Work.list(newPage, sortBy, order, currentFilter)
}
Since I want to use this helper in a view templates I thought that the best solution would be to create a tag for it. So I did the following (in my tags package):
#(newPage : Int, newSortBy:String) {
var sortBy = currentSortBy
var order = currentOrder
if(newSortBy != null) {
sortBy = newSortBy
if(currentSortBy == newSortBy) {
if(currentOrder == "asc") {
order = "desc"
} else {
order = "asc"
}
} else {
order = "asc"
}
}
// Generate the link
controllers.orders.routes.Computer.list(newPage, sortBy, order, currentFilter)
}
But, obviously this is not working and I do not know where or why it is not working.
Thanks for the input.
UPDATE WITH ANSWER:
So in Scala template we have to define, just as in Java, the arguments that are passed to this view (Note: that the variables that you will use in the javascript must be passed too!). The template will be compiled as a method as stated in the documentation.
The working tag looks like:
#(newPage : Int, newSortBy : String, currentSortBy: String, currentOrder: String, currentFilter : String ) #{
var sortBy = currentSortBy
var order = currentOrder
if(newSortBy != null) {
sortBy = newSortBy
if(currentSortBy == newSortBy) {
if(currentOrder == "asc") {
order = "desc"
} else {
order = "asc"
}
} else {
order = "asc"
}
}
// Generate the link
controllers.orders.routes.Work.list(newPage, sortBy, order, currentFilter)
}
The trick is that the first version uses a template syntax allowing to write Scala code instead of HTML: #{ val scalaVal = 42}.
In your tag, the template engine interpretes your code as HTML.
If you want to copy-paste this code, don’t forget the leading # before the opening brace.
Related
My model properties definition is coming from a json file so using reflection to write the classes to be shown under schema on resulting swagger page.
foreach (var model in Models)
{
if (!ModelTypes.ContainsKey(model.Key))
{
anyNonCompiledModel = true;
BuildModelCodeClass(modelComponentBuilder, model.Value);//Build model classes
}
}
BuildModelCodeEnd(modelComponentBuilder);
if (anyNonCompiledModel)
{
CSharpCompiler compiler = new CSharpCompiler();
compiler.AddReference(typeof(object));
compiler.AddReference(typeof(ResourceFactory));
compiler.AddReference(typeof(System.Runtime.Serialization.DataContractResolver));
compiler.AddReference(typeof(System.Runtime.Serialization.DataContractAttribute));
var types = compiler.Compiler(modelComponentBuilder.ToString()); //write model classes
foreach (var type in types)
{
ModelTypes.Add(type.Name, type);
}
}
public void BuildModelCodeClass(StringBuilder modelComponentBuilder, MetadataModelEntity model)
{
modelComponentBuilder.AppendLine($"public class {model.Name} {{");
foreach (var p in model.Data.Properties)
{
if (p.Obsoleted) continue;
if (p.Type.Type == "array")
{
modelComponentBuilder.AppendLine($" public {p.Type.ArrayType.ObjectName}[] {p.Name} {{get;set;}}");
}
else
{
//primitive types
modelComponentBuilder.AppendLine($" public {p.Type.ObjectName} {p.Name} {{get;set;}}");
}
}
modelComponentBuilder.AppendLine(
#"}
");
}
If i provide the description and example like following (in BuildModelCodeClass, inside the loop) then the example and description displays for me.
if (!string.IsNullOrWhiteSpace((string)p.Example))
{
modelComponentBuilder.AppendLine($" ///<example>{p.Example}</example>");
}
if (!string.IsNullOrWhiteSpace((string)p.Description))
{
modelComponentBuilder.AppendLine($" ///<description>{p.Description}</description>");
}
However, i dont want to do above.
I want to write my models via the open api and not via the C# Compiler, is it possible?
I want to show example and description via schema (may be under paths some where). How can i do this? Context has my models info available that i can interact with here.
public class SwaggerDocumentFilter : IDocumentFilter
{
SwaggerDocument _swaggerDocument;
public SwaggerDocumentFilter(object apiConfigure)
{
_swaggerDocument = ((ApiGatewayConfiguration)apiConfigure).SwaggerDocument;
}
public void Apply(OpenApiDocument document, DocumentFilterContext context)
{
if (document.Info.Extensions == null || !document.Info.Extensions.ContainsKey(SwaggerEndpoint.ExtensionDocName)) return;
var openIdString = document.Info.Extensions[SwaggerEndpoint.ExtensionDocName] as OpenApiString;
if (openIdString == null) return;
var docName = openIdString.Value;
SwaggerEndpoint endpoint = _swaggerDocument.SwaggerEndpoints.SingleOrDefault(x => x.Name == docName);
if (endpoint == null) return;
//Add server objects
document.Servers = endpoint.ServerObjects;
//Add Tags objects
document.Tags = endpoint.Tags;
//Set swagger paths objects
var pathsObjects = _swaggerDocument.GetPathsObject(docName, context);
if (pathsObjects.IsValid())
{
pathsObjects.ToList().ForEach(
item => document.Paths.Add(item.Key, item.Value)
);
}
//Add Schema components
//Add Example/Examples
}
}
Following helped
https://github.com/domaindrivendev/Swashbuckle.WebApi/issues/162
AddSchemaExamples.cs
public class AddSchemaExamples : ISchemaFilter
{
public void Apply(Schema schema, SchemaRegistry schemaRegistry, Type type)
{
if (type == typeof(Product))
{
schema.example = new Product
{
Id = 123,
Type = ProductType.Book,
Description = "Treasure Island",
UnitPrice = 10.0M
};
}
}
}
SwaggerConfig.cs
httpConfig
.EnableSwagger(c =>
{
c.SchemaFilter<AddSchemaExamples>()
});
My implementation for the Apply since model is dynamic
if (model != null)
{
schema.Description = model.Description;
foreach (var p in schema.Properties)
{
var mp = model.Data.Properties.SingleOrDefault(x => x.Name == p.Key);
if (mp != null)
{
if (!string.IsNullOrWhiteSpace(mp.Description))
{
p.Value.Description = mp.Description;
}
if(!string.IsNullOrWhiteSpace(mp.Example))
{
p.Value.Example =
new Microsoft.OpenApi.Any.OpenApiString(mp.Example.ToString());
}
}
}
}
I am writing and extension for OpenXML like shown in the sample. I would like to avoid having to pass the WorkbookPart as parameter. Is there any way to get the WorkbookPart directly from the row?
public static string GetCellTextValue(this Row row, WorkbookPart workbookPart, string column)
{
var cells = row.Elements<Cell>();
var cell = cells.Where(p => p.CellReference == column + row.RowIndex.ToString()).FirstOrDefault();
if (cell.DataType != null)
{
if (cell.DataType == CellValues.SharedString)
{
int id = -1;
if (Int32.TryParse(cell.InnerText, out id))
{
SharedStringItem item = workbookPart.SharedStringTablePart.SharedStringTable.Elements<SharedStringItem>().ElementAt(id);
if (item.Text != null)
{
return item.Text.Text;
}
else if (item.InnerText != null)
{
return item.InnerText;
}
else if (item.InnerXml != null)
{
return item.InnerXml;
}
}
}
}
return string.Empty;
}
Unfortunately, none of the strongly-typed classes of the Open XML SDK (e.g., Workbook, Worksheet, Row) have properties pointing back to the OpenXmlPart (e.g., WorkbookPart, WorksheetPart) in which they are contained or any other part related to their immediate container. Unless you amend your API in other ways, you will have to pass that WorkbookPart.
The Plan:
So now what I basically want is to take my propertys out of the class, let the user pick some and then pull a List with ONLY those propertys out of MongoDB.
The Code:
here is where the method starts:
private void DoStuffExecute(object obj)
{
Class class= new Class();
ExtractClass(class);
if (propList != null)
{
var result = classService.DoStuff(propList);
}
}
in "ExtractClass()" the Propertys are being pulled out of the Class.
void ExtractClass(object obj)
{
foreach (var item in obj.GetType().GetProperties())
{
propList.Add(item.Name);
}
}
and finally in "classService.DoStuff()" i try to set the "fields".
public List<class> DoStuff(List<string> Props)
{
try
{
var filter = Builders<class>.Filter.Empty;
var fields = Builders<class>.Projection.Include(x => x.ID);
foreach (var item in Props)
{
string str = "x.";
str += item.ToString();
fields = Builders<class>.Projection.Include(x => str);
fields = Builders<class>.Projection.Include(x => item);
}
var result = MongoConnectionHandler.MongoCollection.Find(filter).Project<class>(fields).ToList();
return result;
}
catch (Exception ex)
{
MessageBox.Show(ex.Message);
var result = new List<class>();
return result;
}
}
when i run the programm it gives me an "Unable to determine the serialization information for x=> value"... since im giving it a string.
The Question:
Does anyone have an Idea how to repair the code above or even make the plan work in another way?
thank you.
First of all: you are using such code lines as : var filter = Builders<class>.Filter.Empty; It is not possible, because class is a reserved keyword in c# (https://msdn.microsoft.com/en-us/library/x53a06bb.aspx) I assume, it's your Model, and i will speak about it as about Model class.
Include Filter needs Expression as a parameter, not a string, you should construct is as a expression. That's the second thing. Third, you should combine your includes as a chain, So your part of creating Include Filter from string List should look like:
var filter = Builders<Model>.Filter.Empty;
var fields = Builders<Model>.Projection.Include(x => x.Id);
foreach (var item in Props)
{
var par = Expression.Parameter(typeof(Model));
var prop = Expression.Property(par, item);
var cast = Expression.Convert(prop, typeof(object));
var lambda = Expression.Lambda(cast, par);
fields = fields.Include((Expression<Func<Model, object>>)lambda);
}
I have all expresiions separate for better understanding: first you create Parameter (x=>), than you add property (x=>x.Property1), than you should cast it to object, and after all create Lambda Expression from it.
And now the last part: You don't need all of it, Include function could get jsut a string as a parameter. So you could instead of all expression call write this:
fields = fields.Include(item);
What is the quickest way to validate al my input fields with javaScript?
I want to check if the fields are filled in or not.
Thx
following is my javascript code :
<script>
function Check(frm)
{
var input, EmptyFound=false;
var elem = document.getElementById('frmMain').elements;
for(var i=0;i<elem.length;i++)
{
input = elem[i];
if(input.type == "text")
{
if(input.value == "")
{
EmptyFound = true;
break;
}
}
return notEmpty;
}
</script>
I would use jQuery Validate.
A single line of jQuery to select the form and apply the validation
plugin. And a bit of metadata on each element to specify the
validation rules.
The docs specifically for enforcing required are at
http://docs.jquery.com/Plugins/Validation/Methods/required
It requires adding jQuery (if you don't use it already) but provides a fast and powerful validation framework.
you can use this to distinguish between input different types
this is just a sample from my project
//var frm_elements = document.mainForm.elements;
//var frm_elements =document.getElementById('mainForm').elements;
for (var i = 0; i < document.mainForm.elements.length; i++)
{document.mainForm.elements[i];
if(document.mainForm.elements[i]!=null)
{
var field_type = document.mainForm.elements[i].type;
switch (field_type)
{
case "text":
if(document.mainForm.elements[i].name.indexOf("from")!='-1' &&
document.mainForm.elements[i].name.indexOf("frotom")!='-1' &&
!document.mainForm.elements[i].name.indexOf("serNo")!='-1' &&
!document.mainForm.elements[i].name.indexOf("repKey")!='-1' &&
!document.mainForm.elements[i].name.indexOf("orderKey")!='-1' &&
!document.mainForm.elements[i].name.indexOf("formatKey")!='-1' )
{
document.mainForm.elements[i].value = "";
}
break;
case "password":
case "textarea":
case "hidden":
/* frm_elements[i].value = "";
break;*/
case "radio":
case "checkbox":
/*if (frm_elements[i].checked)
{
frm_elements[i].checked = false;
}
break;*/
case "select-one":
case "select-multi":
if(document.mainForm.elements[i].name.indexOf("ddlMainSubModule")=='-1')
document.mainForm.elements[i].selectedIndex = 0;
break;
default:
break;
}
}
}
I have an extjs form with fields. The user isn't required to enter data into each field so I do not want to submit the fields with no data. I want it to post only fields that actually have data. Is this possible?
I recommend using form's beforeaction event. While handling this event you can check all fields. If all values are empty just return false;. The following example works in ExtJS4 and has to work in ExtJS3:
myform.on('beforeaction', function(form, action) {
if (action.type == 'submit') {
var doSubmit = false, vals = form.getValues();
for (var i in vals)
if (vals[i] !== '') {
doSubmit = true;
break;
}
return doSubmit;
}
});
Actualy, the right way to not submit empty fields is to use action's submitEmptyText config. But it's not working in current version (ExtJS4.0.2a).
Another options is to override component's getSubmitValue() method and return null if this field is empty, this way it won't be included into submit fields.
{
xtype: 'combo',
getSubmitValue: function(){
var value = this.getValue();
if(Ext.isEmpty(value)) {
return null;
}
return value;
}
}
Instead of using form's submit, directly call Ext.Ajax.request(...) with the url, method type (GET/POST) and params (and any other options as explained in the call documentation).
To generate params, iterate over the form fields and check for null value before adding to params.
This bug is present in ExtJS 4.0.7 too.
As Molecule Man pointed:
Actualy, the right way to not submit empty fields is to use action's submitEmptyText config. But it's not working in current version (ExtJS4.0.2a).
A possible solution to fix this bug is by overriding 2 functions, getValues in "Ext.form.Basic" (where the bug is) and createForm (to create our basic form) in "Ext.form.Panel" by extension in the following way:
Ext.define("My.form.Basic", {
alias: "form.mybasic",
extend: "Ext.form.Basic",
getValues: function(asString, dirtyOnly, includeEmptyText, useDataValues) {
var values = {};
this.getFields().each(function(field) {
if (!dirtyOnly || field.isDirty()) {
var data = field[useDataValues ? "getModelData" : "getSubmitData"](includeEmptyText);
if (Ext.isObject(data)) {
var isArray = Ext.isArray;
Ext.iterate(data, function(name, val) {
if (includeEmptyText && val === "") {
val = field.emptyText || "";
}
if (includeEmptyText || ((!isArray(val) && val !== "") || (isArray(val) && val.length !== 0))) {
if (name in values) {
var bucket = values[name];
if (!isArray(bucket)) {
bucket = values[name] = [bucket];
}
if (isArray(val)) {
values[name] = bucket.concat(val);
}
else {
bucket.push(val);
}
}
else {
values[name] = val;
}
}
});
}
}
});
if (asString) {
values = Ext.Object.toQueryString(values);
}
return values;
}
});
Ext.define("My.form.Panel", {
alias: "form.mypanel",
extend: "Ext.form.Panel",
createForm: function() {
return Ext.create("My.form.Basic", this, Ext.applyIf({listeners: {}}, this.initialConfig));
}
});
The code is copied from the ext source code. The only change is inside the iteration of each field: introduced the following wrapping "if":
if (includeEmptyText || ((!isArray(val) && val !== "") || (isArray(val) && val.length !== 0)))
I am a bit late but, better later than never...