Prevent removing field in json if field is empty and field is required angularjs
Date : March 29 2020, 07:55 AM
it helps some times If I understand the question correctly, you could set the values in your controller like this: angular.module('myApp')
.controller('MyCtrl', function ($scope) {
// ...
$scope.user = {
firstname: '',
lastname: '',
};
// ...
});
<form name="frmSample">
<input type="text" ng-model="user.firstname" />
<input type="text" ng-model="user.lastname" />
</form>
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django not nullable error on model field containing null-True
Date : March 29 2020, 07:55 AM
I hope this helps you . Delete all migration scripts. Add null=True means it can be NULL in the database, blank=True means that it can be left blank in forms. Then python manage.py makemigrations
python manage.py migrate
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Null field in JSON: empty quotes, null value, or remove field?
Date : March 29 2020, 07:55 AM
This might help you Let's suppose that your are trying to infer types to your fields, thus an hypothetical one named f usually contains numbers.
That makes sense to me, for you are combining a strongly typed language with a one that is not.
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empty field or blank field or null field is not shown in php code
Tag : php , By : AJacques
Date : March 29 2020, 07:55 AM
To fix the issue you can do 1.remove 1 beside query code line. 2.Use _assoc() as you specified column-names in query.(Not compulsion, but will give you a lighter associative array) $sql1="select a.code,a.empname,a.pfuidno from emplmast a "; // remove 1
$get1=mysqli_query($conn,$sql1) or die(mysqli_error());
$m_no = mysqli_num_rows($get1);
if ($m_no > 0){
while($row1 = mysqli_fetch_assoc($get1)){ // use _assoc
if ($row1['pfuidno']=='' || empty($row1['pfuidno']) || $row1['pfuidno'] === NULL){ //check for NULL
$m_errmsg='UAN is Blank for Employee Code '.$row1['code'].' Name '.$row1['empname'];
echo "<script language='javascript' type='text/javascript'>alert('$m_errmsg')</script>";
}
}
}
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How can I append an empty array field into a JSON if a JSON field is null?
Date : March 29 2020, 07:55 AM
it fixes the issue You need to assign an object with a new property for the array, because you try to use a property SubSpeciesList, which does not exist. if (finalResponse.SubSpeciesInfo === null) {
log.info("NO SUBSPECIES");
finalResponse.SubSpeciesInfo = { SubSpeciesList: [] };
}
var finalResponse = {
SubSpeciesInfo : null
}
if(finalResponse.SubSpeciesInfo === null) {
console.log("NO SUBSPECIES");
finalResponse.SubSpeciesInfo = {SubSpeciesList : []};
}
console.log(finalResponse);
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