Examples with ManyToManyField com.orm.androrm.field.ManyToManyField used on opensource projects

Example 1 with ManyToManyField

use of com.orm.androrm.field.ManyToManyField in project androrm by androrm.

the class QueryBuilder method getRelationSelection.

@SuppressWarnings("unchecked")
private static final <T extends Model> SelectStatement getRelationSelection(Relation<?> r, Class<T> clazz, Rule rule) {
    Class<? extends Model> target = r.getTarget();
    Statement stmt = rule.getStatement();
    Where where = new Where();
    SelectStatement select = new SelectStatement();
    if (r instanceof ManyToManyField) {
        ManyToManyField<T, ?> m = (ManyToManyField<T, ?>) r;
        stmt.setKey(DatabaseBuilder.getTableName(target));
        where.setStatement(stmt);
        select.from(m.getRelationTableName()).select(DatabaseBuilder.getTableName(clazz));
    }
    if (r instanceof OneToManyField) {
        String backLinkFieldName = Model.getBackLinkFieldName(target, clazz);
        stmt.setKey(backLinkFieldName);
        where.setStatement(stmt);
        select.from(DatabaseBuilder.getTableName(target)).select(backLinkFieldName + " AS " + DatabaseBuilder.getTableName(clazz));
    }
    select.where(where).distinct();
    return select;
}

Example 2 with ManyToManyField

use of com.orm.androrm.field.ManyToManyField in project androrm by androrm.

the class DatabaseBuilder method getFieldDefinitions.

private static final <T extends Model> void getFieldDefinitions(T instance, Class<T> clazz, TableDefinition modelTable) throws IllegalArgumentException, IllegalAccessException {
    if (clazz != null && clazz.isInstance(instance)) {
        ModelCache.addModel(clazz);
        for (Field field : getFields(clazz, instance)) {
            String name = field.getName();
            Object o = field.get(instance);
            if (o instanceof DataField) {
                DataField<?> fieldObject = (DataField<?>) o;
                modelTable.addField(name, fieldObject);
            }
            if (o instanceof ManyToManyField) {
                modelTable.addRelationalClass(clazz);
            }
        }
        getFieldDefinitions(instance, Model.getSuperclass(clazz), modelTable);
    }
}

Example 3 with ManyToManyField

use of com.orm.androrm.field.ManyToManyField in project androrm by androrm.

the class DatabaseBuilder method getRelationDefinitions.

@SuppressWarnings("unchecked")
private static final <T extends Model> void getRelationDefinitions(T instance, Class<T> clazz, List<TableDefinition> definitions) {
    if (clazz != null && clazz.isInstance(instance)) {
        for (Field field : getFields(clazz, instance)) {
            try {
                Object o = field.get(instance);
                if (o instanceof ManyToManyField) {
                    ManyToManyField<T, ?> m = (ManyToManyField<T, ?>) o;
                    String leftHand = getTableName(clazz);
                    String rightHand = getTableName(m.getTarget());
                    TableDefinition definition = new TableDefinition(m.getRelationTableName());
                    ForeignKeyField<T> leftLink = m.getLeftLinkDescriptor();
                    ForeignKeyField<?> rightLink = m.getRightHandDescriptor();
                    definition.addField(leftHand, leftLink);
                    definition.addField(rightHand, rightLink);
                    definitions.add(definition);
                }
            } catch (IllegalAccessException e) {
                Log.e(TAG, "could not gather relation definitions for class " + clazz.getSimpleName(), e);
            }
        }
        getRelationDefinitions(instance, Model.getSuperclass(clazz), definitions);
    }
}

Example 4 with ManyToManyField

use of com.orm.androrm.field.ManyToManyField in project androrm by androrm.

the class Model method saveM2MToDatabase.

@SuppressWarnings("unchecked")
private <T extends Model> void saveM2MToDatabase(Context context, Class<T> clazz, Object field) {
    ManyToManyField<T, ?> m = (ManyToManyField<T, ?>) field;
    List<? extends Model> targets = m.getCachedValues();
    DatabaseAdapter adapter = DatabaseAdapter.getInstance(context);
    for (Model target : targets) {
        /*
			 * Only save relation to the database if the
			 * target model has been persisted. 
			 */
        if (target.getId() != 0) {
            ContentValues values = new ContentValues();
            Where where = new Where();
            where.and(DatabaseBuilder.getTableName(clazz), getId()).and(DatabaseBuilder.getTableName(m.getTarget()), target.getId());
            values.put(DatabaseBuilder.getTableName(clazz), getId());
            values.put(DatabaseBuilder.getTableName(m.getTarget()), target.getId());
            adapter.doInsertOrUpdate(m.getRelationTableName(), values, where);
        }
    }
}