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How to check if a model has a certain column/attribute?
...s checking my models for ones that had a user, but had to instead look for user_id since some models delegated user.
– MattyB
Jul 22 '15 at 16:16
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Django - filtering on foreign key properties
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student_user = User.objects.get(id=user_id)
available_subjects = Subject.objects.exclude(subject_grade__student__user=student_user) # My ans
enrolled_subjects = SubjectGrade.objects.filter(student__user=student_user)
context.update({'available_subjects': avail...
How can I play sound in Java?
...lename) {
this.loop = false;
try {
InputStream raw = Object.class.getResourceAsStream(filename);
stream = new BufferedInputStream(raw);
// ByteArrayOutputStream out = new ByteArrayOutputStream();
// byte[] buffer = new byte[1024];
...
what is the difference between ajax and jquery and which one is better? [closed]
...uery) and a process (AJAX). To compare them would be to compare apples and oranges.
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Iterating through a JSON object
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Your loading of the JSON data is a little fragile. Instead of:
json_raw= raw.readlines()
json_object = json.loads(json_raw[0])
you should really just do:
json_object = json.load(raw)
You shouldn't think of what you get as a "JSON object". What you have is a list. The list contains two di...
PowerShell: Store Entire Text File Contents in Variable
...de note, in PowerShell 3.0 you can use the Get-Content cmdlet with the new Raw switch:
$text = Get-Content .\file.txt -Raw
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Rails has_many with alias name
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Give this a shot:
has_many :jobs, foreign_key: "user_id", class_name: "Task"
Note, that :as is used for polymorphic associations.
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Are there any naming convention guidelines for REST APIs? [closed]
...tching. It's doubtful, however, that the result of your request is only a user_id. It's much more likely that the result of the request is a User. Therefore, user is the noun you're fetching
www.example.com/greeting/user/x/
Makes sense to me. Focus on making your REST request a kind of noun p...
urlencode vs rawurlencode?
...ing a variable I have two choices to encode the string. urlencode() and rawurlencode() .
11 Answers
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Hibernate Criteria returns children multiple times with FetchType.EAGER
... @CollectionTable(name = "user_roles", joinColumns = @JoinColumn(name = "user_id"))
@Column(name = "role")
@ElementCollection(fetch = FetchType.EAGER)
@BatchSize(size = 200)
private Set<Role> roles;
@OneToMany(fetch = FetchType.LAZY, mappedBy = "user")
@OrderBy("dateTime D...