function _ahah_example_get_first_dropdown_options() {
$stid = oci_parse($conn, "SELECt code,descr1 FROM dbtest.regions");
oci_execute($stid);
$region= array();
while (($row = oci_fetch_array($stid, OCI_ASSOC))) {
$region[$row['CODE']]= $row['DESCR1'];
}
$region['']='Select';
oci_free_statement($stid);
oci_close($conn);
return drupal_map_assoc($region);
}
but it returns the key and the value equal I need the original key to be returne cause im using it's value in a javascript function?anyone would know how to return the original Key?
From your code, you should be able to skip drupal_map_assoc and just return $region. Give that a try and see if you like the results.
Reference http://api.drupal.org/api/drupal/includes--common.inc/function/drupal_map_assoc/6
Related
'''
QuestionModel getQuestionModelFromDatasnapshot(
DocumentSnapshot questionSnapshot) {
QuestionModel questionModel = new QuestionModel();
questionModel.question = questionSnapshot.data()'question'];
List<String> options = [
questionSnapshot.data()["option1"],
questionSnapshot.data()["option2"],
questionSnapshot.data()["option3"],
questionSnapshot.data()["option4"]
];
options.shuffle();
questionModel.option1 = options[0];
questionModel.option2 = options[1];
questionModel.option3 = options[2];
questionModel.option4 = options[3];
questionModel.correctOption = questionSnapshot.data()["option1"];
questionModel.answered = false;
print(questionModel.correctOption.toLowerCase());
return questionModel;
}
'''
It looks like you're using dart with null safety on and you are accessing a list or map that might be null. It's hard to tell from your code, but I'm guessing the offending line is
questionModel.correctOption = questionSnapshot.data()["option1"];
It might be one of the other [] calls earlier in your code (such as
questionSnapshot.data()["option1"]), but the solution is the same.
The problem is that questionSnapshot.data() might return null, and the compiler is flagging it.
If you are sure the data is not null, you can use the ! operator, like this:
questionModel.correctOption = questionSnapshot.data()!["option1"];
Another solution is a conditional null-safe operator ?, with a default value. In this case, the code would look like this:
questionModel.correctOption = questionSnapshot.data()?["option1"]??"DefaultValue;
But I would recommend checking if the returned data is null. It's easier for others to read and can be logged more easily:
var data = questionSnapshot.data();
if (data != null) {
questionModel.correctOption = data["option1"];
}
else {
//do something in that case
}
In my project, I must know first and last key of child to do something. I have query same below, I use 'i' to find first but I don't know how to get last key? Have any ways to set if Firebase query complete will do function with child_added? .In test, console.log(last) but is undefinded
var i = 0;
myDataRef.limitToLast(10).on('child_added', function (snapshot){
if( i == 0)
{
first = snapshot.key;
}
renderInfo(snapshot.key, snapshot.val(), 'new');
last = snapshot.key;
});
console.log(last)
I'm trying to implement a table valued function (as a SQLite virtual table).
It's a function that would take a string and return a table with all the words of the string.
If I call it with literal values like below, it works fine.
SELECT word FROM splitstring("abc def ghi")
If, however, I call it with a column from another table it doesn't work:
SELECT a.Name, word FROM article a, splitstring(a.Text)
The xBestIndex method gets called all right, but right after that, I get an exception from the ExecuteReader method. The exception message is "xBestIndex malfunction". The xFilter method does not get called because of the exception.
My xBestIndex implementation is simple, it just marks the parameter so I can see it in xFilter:
public override SQLiteErrorCode BestIndex(SQLiteVirtualTable table, SQLiteIndex index)
{
index.Outputs.ConstraintUsages.ElementAt(0).argvIndex = 1;
index.Outputs.ConstraintUsages.ElementAt(0).omit = 1;
return SQLiteErrorCode.Ok;
}
Am I'm doing something wrong or is it impossible to pass non-literal parameters to table valued functions?
Found the issue! I was using constraints that had usable=0. The BestIndex method gets called multiple times by SQLite, the second time with a non-usable constraint.
Here is the fixed body of the BestIndex method.
public override SQLiteErrorCode BestIndex(SQLiteVirtualTable table, SQLiteIndex index)
{
if (index.Inputs.Constraints.Count() != 2)
throw new ArgumentException("The generate_series function requires two integer (long) parameters!");
if (index.Inputs.Constraints.All(c=>c.usable == 1))
{
index.Outputs.ConstraintUsages.ElementAt(0).argvIndex = 1;
index.Outputs.ConstraintUsages.ElementAt(0).omit = 1;
index.Outputs.ConstraintUsages.ElementAt(1).argvIndex = 2;
index.Outputs.ConstraintUsages.ElementAt(1).omit = 1;
}
else
{
index.Outputs.IndexNumber = -1;
index.Outputs.EstimatedCost = double.MaxValue;
}
return SQLiteErrorCode.Ok;
}
Now I check the usable flag. When BestIndex gets called with a constraint with usable=0 I skip it i.e. return a high estimated cost for that index so it doesn't get used.
I have five custom fields for loading images but all of them are not required. I mean the user can upload a random number of images from 1 to 5. I am stuck in a simple lack of concept here. How should I check if any of them is empty and discard it. More specifically I want to discard the non-existing fields and store only the uploaded ones in an array. Here is my code
$custom_fields = get_post_custom($id);
$my_custom_field1 = $custom_fields['image1'];
$my_custom_field2 = $custom_fields['image2'];
$my_custom_field3 = $custom_fields['image3'];
$my_custom_field4 = $custom_fields['image4'];
$my_custom_field5 = $custom_fields['image5'];
if(!(false===($my_custom_field1))) { $img[]=$my_custom_field1;}
if(!(false===($my_custom_field2))) { $img[]=$my_custom_field2;}
if(!(false===($my_custom_field3))) { $img[]=$my_custom_field3;}
if(!(false===($my_custom_field4))) { $img[]=$my_custom_field4;}
if(!(false===($my_custom_field5))) { $img[]=$my_custom_field5;}
$images = Array("image1","image2","image3","image4","image5");
foreach($images as $image){
if(isset($custom_fields[$image])){
$img[] = $custom_fields[$image];
}
}
Didn't tested that, but should work.
if(isset($my_custom_field5)){
// do something with $my_custom_field5
}
I would suggest using
if ( !empty($my_custom_field)){
\\Do Something
}
because isset only checks for variable beings set and not null where as empty checks if the variable is an empty string, false, array(), NULL, “0?, 0, and an unset variable.
I've looked at this other question, but can't get my select box to work correctly:
Binding initial/default value of dropdown (select) list
I've got the following Game object:
function Game(visitingTeamDetails, homeTeamDetails, game) {
if (arguments.length > 0) {
this.VisitingTeamDetails = visitingTeamDetails;
this.HomeTeamDetails = homeTeamDetails;
this.GameId = ko.observable(game.GameId);
this.HomeTeamName = ko.observable(game.HomeTeamName);
this.VisitingTeamName = ko.observable(game.VisitingTeamName);
this.SportTypeName = ko.observable(game.SportTypeName);
this.HomeAccountName = ko.observable(game.HomeAccountName);
this.VisitingAccountName = ko.observable(game.VisitingAccountName);
this.GameDateString = ko.observable(game.GameDateString);
this.GameTimeString = ko.observable(game.GameTimeString);
this.AvailableSportTypes = ko.observableArray(game.Sports);
this.sportTypeFunction = function () {
for (sportType in this.AvailableSportTypes()) {
if (this.AvailableSportTypes()[sportType].Name == this.SportTypeName()) {
return this.AvailableSportTypes()[sportType];
}
}
return null;
};
this.SportType = ko.observable(game.SportType);
}
}
SportType is an object with Name and SportTypeId.
I have the following template:
<td rowspan="3"><select data-bind="options: AvailableSportTypes, value: SportType, optionsText:'Name', optionsCaption: 'Choose...'" class="sportType"></select></td>
AvailableSportTypes is a list of SportType.
The list is coming in with the names of the SportTypes in the drop down list, but I can't make the initial selection be SportType. I wrote sportTypeFunction to show myself that the data was coming in correctly, and it would select the correct value, but changing my selection in the drop down would not update SportType.
I'm sure I'm doing something wrong. Anyone see it?
Thanks
When game.SportType gets passed in, it needs to be a reference to the an item in the game.AvailableSportTypes and not just an object that looks the same.
Basically two objects are not equal unless they are actually a reference to the same object.
var a = { name: "test" },
b = { name: "test" };
alert(a === b); //false
So, you would need to call your function to locate the correct object in the array and set it as the value of your observable.
Not that it is way better, but in KO 1.3 you can extend .fn of observables, observableArrays, and dependentObservables to add additional functionality.
Here is a sample: http://jsfiddle.net/rniemeyer/ZP79w