Examples of org.ofbiz.entity.model.ModelRelation

org.ofbiz.entity.model.ModelRelation
Generic Entity - Relation model class

        int fksCreated = 0;


        // go through the relationships to see if any foreign keys need to be added
        Iterator<ModelRelation> relationsIter = entity.getRelationsIterator();
        while (relationsIter.hasNext()) {
            ModelRelation modelRelation = relationsIter.next();
            if ("one".equals(modelRelation.getType())) {
                ModelEntity relModelEntity = modelEntities.get(modelRelation.getRelEntityName());


                if (relModelEntity == null) {
                    String errMsg = "Error adding foreign key: ModelEntity was null for related entity name " + modelRelation.getRelEntityName();
                    Debug.logError(errMsg, module);
                    if (messages != null) messages.add(errMsg);
                    continue;
                }
                if (relModelEntity instanceof ModelViewEntity) {
                    String errMsg = "Error adding foreign key: related entity is a view entity for related entity name " + modelRelation.getRelEntityName();
                    Debug.logError(errMsg, module);
                    if (messages != null) messages.add(errMsg);
                    continue;
                }

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        if (messages != null) messages.add(message);


        // go through the relationships to see if any foreign keys need to be added
        Iterator<ModelRelation> relationsIter = entity.getRelationsIterator();
        while (relationsIter.hasNext()) {
            ModelRelation modelRelation = relationsIter.next();


            if ("one".equals(modelRelation.getType())) {
                ModelEntity relModelEntity = modelEntities.get(modelRelation.getRelEntityName());


                if (relModelEntity == null) {
                    String errMsg = "Error removing foreign key: ModelEntity was null for related entity name " + modelRelation.getRelEntityName();
                    if (messages != null) messages.add(errMsg);
                    Debug.logError(errMsg, module);
                    continue;
                }
                if (relModelEntity instanceof ModelViewEntity) {
                    String errMsg = "Error removing foreign key: related entity is a view entity for related entity name " + modelRelation.getRelEntityName();
                    if (messages != null) messages.add(errMsg);
                    Debug.logError(errMsg, module);
                    continue;
                }

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        int fkisCreated = 0;


        // go through the relationships to see if any foreign keys need to be added
        Iterator<ModelRelation> relationsIter = entity.getRelationsIterator();
        while (relationsIter.hasNext()) {
            ModelRelation modelRelation = relationsIter.next();
            if ("one".equals(modelRelation.getType())) {
                String retMsg = createForeignKeyIndex(entity, modelRelation, constraintNameClipLength);
                if (retMsg != null && retMsg.length() > 0) {
                    String message = "Could not create foreign key indices for entity [" + entity.getEntityName() + "]: " + retMsg;
                    Debug.logError(message, module);
                    if (messages != null) messages.add(message);

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        // go through the relationships to see if any foreign keys need to be added
        Iterator<ModelRelation> relationsIter = entity.getRelationsIterator();


        while (relationsIter.hasNext()) {
            ModelRelation modelRelation = relationsIter.next();


            if ("one".equals(modelRelation.getType())) {
                String retMsg = deleteForeignKeyIndex(entity, modelRelation, constraintNameClipLength);


                if (retMsg != null && retMsg.length() > 0) {
                    if (retMsgsBuffer.length() > 0) {
                        retMsgsBuffer.append("\n");

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     * @param value GenericValue instance containing the entity
     * @return List of GenericValue instances as specified in the relation definition
     */
    public List<GenericValue> getRelated(String relationName, Map<String, ? extends Object> byAndFields, List<String> orderBy, GenericValue value) throws GenericEntityException {
        ModelEntity modelEntity = value.getModelEntity();
        ModelRelation relation = modelEntity.getRelation(relationName);


        if (relation == null) {
            throw new GenericModelException("Could not find relation for relationName: " + relationName + " for value " + value);
        }


        // put the byAndFields (if not null) into the hash map first,
        // they will be overridden by value's fields if over-specified this is important for security and cleanliness
        Map<String, Object> fields = FastMap.newInstance();
        if (byAndFields != null) fields.putAll(byAndFields);
        for (int i = 0; i < relation.getKeyMapsSize(); i++) {
            ModelKeyMap keyMap = relation.getKeyMap(i);
            fields.put(keyMap.getRelFieldName(), value.get(keyMap.getFieldName()));
        }


        return this.findByAnd(relation.getRelEntityName(), fields, orderBy);
    }

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     * @param value GenericValue instance containing the entity
     * @return GenericPK containing a possibly incomplete PrimaryKey object representing the related entity or entities
     */
    public GenericPK getRelatedDummyPK(String relationName, Map<String, ? extends Object> byAndFields, GenericValue value) throws GenericEntityException {
        ModelEntity modelEntity = value.getModelEntity();
        ModelRelation relation = modelEntity.getRelation(relationName);


        if (relation == null) {
            throw new GenericModelException("Could not find relation for relationName: " + relationName + " for value " + value);
        }
        ModelEntity relatedEntity = getModelReader().getModelEntity(relation.getRelEntityName());


        // put the byAndFields (if not null) into the hash map first,
        // they will be overridden by value's fields if over-specified this is important for security and cleanliness
        Map<String, Object> fields = FastMap.newInstance();
        if (byAndFields != null) fields.putAll(byAndFields);
        for (int i = 0; i < relation.getKeyMapsSize(); i++) {
            ModelKeyMap keyMap = relation.getKeyMap(i);
            fields.put(keyMap.getRelFieldName(), value.get(keyMap.getFieldName()));
        }


        GenericPK dummyPK = GenericPK.create(relatedEntity, fields);
        dummyPK.setDelegator(this);

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     * @param value GenericValue instance containing the entity
     * @return List of GenericValue instances as specified in the relation definition
     */
    public List<GenericValue> getRelatedCache(String relationName, GenericValue value) throws GenericEntityException {
        ModelEntity modelEntity = value.getModelEntity();
        ModelRelation relation = modelEntity.getRelation(relationName);


        if (relation == null) {
            throw new GenericModelException("Could not find relation for relationName: " + relationName + " for value " + value);
        }


        Map<String, Object> fields = FastMap.newInstance();
        for (int i = 0; i < relation.getKeyMapsSize(); i++) {
            ModelKeyMap keyMap = relation.getKeyMap(i);
            fields.put(keyMap.getRelFieldName(), value.get(keyMap.getFieldName()));
        }


        return this.findByAndCache(relation.getRelEntityName(), fields, null);
    }

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    /** Get related entity where relation is of type one, uses findByPrimaryKey
     * NOTE 20080502: 7 references
     * @throws IllegalArgumentException if the list found has more than one item
     */
    public GenericValue getRelatedOne(String relationName, GenericValue value) throws GenericEntityException {
        ModelRelation relation = value.getModelEntity().getRelation(relationName);


        if (relation == null) {
            throw new GenericModelException("Could not find relation for relationName: " + relationName + " for value " + value);
        }
        if (!"one".equals(relation.getType()) && !"one-nofk".equals(relation.getType())) {
            throw new GenericModelException("Relation is not a 'one' or a 'one-nofk' relation: " + relationName + " of entity " + value.getEntityName());
        }


        Map<String, Object> fields = FastMap.newInstance();
        for (int i = 0; i < relation.getKeyMapsSize(); i++) {
            ModelKeyMap keyMap = relation.getKeyMap(i);
            fields.put(keyMap.getRelFieldName(), value.get(keyMap.getFieldName()));
        }


        return this.findByPrimaryKey(relation.getRelEntityName(), fields);
    }

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     * NOTE 20080502: 1 references
     * @throws IllegalArgumentException if the list found has more than one item
     */
    public GenericValue getRelatedOneCache(String relationName, GenericValue value) throws GenericEntityException {
        ModelEntity modelEntity = value.getModelEntity();
        ModelRelation relation = modelEntity.getRelation(relationName);


        if (relation == null) {
            throw new GenericModelException("Could not find relation for relationName: " + relationName + " for value " + value);
        }
        if (!"one".equals(relation.getType()) && !"one-nofk".equals(relation.getType())) {
            throw new GenericModelException("Relation is not a 'one' or a 'one-nofk' relation: " + relationName + " of entity " + value.getEntityName());
        }


        Map<String, Object> fields = FastMap.newInstance();
        for (int i = 0; i < relation.getKeyMapsSize(); i++) {
            ModelKeyMap keyMap = relation.getKeyMap(i);
            fields.put(keyMap.getRelFieldName(), value.get(keyMap.getFieldName()));
        }


        return this.findByPrimaryKeyCache(relation.getRelEntityName(), fields);
    }

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     *@param doCacheClear boolean that specifies whether to clear cache entries for this value to be removed
     *@return int representing number of rows effected by this operation
     */
    public int removeRelated(String relationName, GenericValue value, boolean doCacheClear) throws GenericEntityException {
        ModelEntity modelEntity = value.getModelEntity();
        ModelRelation relation = modelEntity.getRelation(relationName);


        if (relation == null) {
            throw new GenericModelException("Could not find relation for relationName: " + relationName + " for value " + value);
        }


        Map<String, Object> fields = FastMap.newInstance();
        for (int i = 0; i < relation.getKeyMapsSize(); i++) {
            ModelKeyMap keyMap = relation.getKeyMap(i);
            fields.put(keyMap.getRelFieldName(), value.get(keyMap.getFieldName()));
        }


        return this.removeByAnd(relation.getRelEntityName(), fields, doCacheClear);
    }

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