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Handle null values

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This commit is contained in:
Oliver Walters 2023-04-21 20:31:36 +10:00
parent bff2a5e2a9
commit 415ec259e5
1 changed files with 25 additions and 0 deletions
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25
lib/inventree/model.dart
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@ -96,30 +96,55 @@ class InvenTreeModel {
// Helper function to get sub-map from JSON data
Map<String, dynamic> getMap(String key, {Map<String, dynamic> backup = const {}, String subKey = ""}) {
dynamic value = getValue(key, backup: backup, subKey: subKey);
if (value == null) {
return backup;
}
return value as Map<String, dynamic>;
}
// Helper function to get string value from JSON data
String getString(String key, {String backup = "", String subKey = ""}) {
dynamic value = getValue(key, backup: backup, subKey: subKey);
if (value == null) {
return backup;
}
return value.toString();
}
// Helper function to get integer value from JSON data
int getInt(String key, {int backup = -1, String subKey = ""}) {
dynamic value = getValue(key, backup: backup, subKey: subKey);
if (value == null) {
return backup;
}
return int.tryParse(value.toString()) ?? backup;
}
// Helper function to get double value from JSON data
double getDouble(String key, {double backup = 0.0, String subKey = ""}) {
dynamic value = getValue(key, backup: backup, subKey: subKey);
if (value == null) {
return backup;
}
return double.tryParse(value.toString()) ?? backup;
}
// Helper function to get boolean value from json data
bool getBool(String key, {bool backup = false, String subKey = ""}) {
dynamic value = getValue(key, backup: backup, subKey: subKey);
if (value == null) {
return backup;
}
return value.toString().toLowerCase() == "true";
}