QxOrm 1.4.9
C++ Object Relational Mapping library
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QxSqlRelation_OneToOne.h
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31
32#ifndef _QX_SQL_RELATION_ONE_TO_ONE_H_
33#define _QX_SQL_RELATION_ONE_TO_ONE_H_
34
35#ifdef _MSC_VER
36#pragma once
37#endif
38
46#include <QxDao/QxSqlRelation.h>
47
48namespace qx {
49
54template <class DataType, class Owner>
55class QxSqlRelation_OneToOne : public QxSqlRelation<DataType, Owner>
56{
57
58private:
59
62
63public:
64
67
68 virtual QString getDescription() const { return "relation one-to-one"; }
69 virtual QString createExtraTable() const { return ""; }
70 virtual bool getCartesianProduct() const { return false; }
71 virtual void createTable(QxSqlRelationParams & params) const { Q_UNUSED(params); }
72 virtual void lazySelect(QxSqlRelationParams & params) const { Q_UNUSED(params); }
73 virtual void lazyFrom(QxSqlRelationParams & params) const { Q_UNUSED(params); }
74 virtual void eagerFrom(QxSqlRelationParams & params) const { Q_UNUSED(params); }
75 virtual void lazyJoin(QxSqlRelationParams & params) const { Q_UNUSED(params); }
76 virtual void lazyWhere(QxSqlRelationParams & params) const { Q_UNUSED(params); }
77 virtual void eagerWhere(QxSqlRelationParams & params) const { Q_UNUSED(params); }
78 virtual void lazyWhereSoftDelete(QxSqlRelationParams & params) const { Q_UNUSED(params); }
79 virtual void lazyFetch_ResolveInput(QxSqlRelationParams & params) const { Q_UNUSED(params); }
80 virtual void eagerFetch_ResolveInput(QxSqlRelationParams & params) const { Q_UNUSED(params); }
81 virtual void lazyFetch_ResolveOutput(QxSqlRelationParams & params) const { Q_UNUSED(params); }
82 virtual void lazyInsert(QxSqlRelationParams & params) const { Q_UNUSED(params); }
83 virtual void lazyInsert_Values(QxSqlRelationParams & params) const { Q_UNUSED(params); }
84 virtual void lazyUpdate(QxSqlRelationParams & params) const { Q_UNUSED(params); }
85 virtual void lazyInsert_ResolveInput(QxSqlRelationParams & params) const { Q_UNUSED(params); }
86 virtual void lazyUpdate_ResolveInput(QxSqlRelationParams & params) const { Q_UNUSED(params); }
87 virtual QSqlError onBeforeSave(QxSqlRelationParams & params) const { Q_UNUSED(params); return QSqlError(); }
88
89 virtual QSqlError onAfterSave(QxSqlRelationParams & params) const
90 {
91 if (this->isNullData(params)) { return QSqlError(); }
92 if (! params.recursiveMode()) { return qx::dao::save(this->getData(params), (& params.database())); }
93 else { return qx::dao::save_with_relation_recursive(this->getData(params), params.saveMode(), (& params.database()), (& params)); }
94 }
95
96 virtual QVariant getIdFromQuery(bool bEager, QxSqlRelationParams & params, int iOffset, int iNameIndex) const
97 { return this->getIdFromQuery_OneToOne(bEager, params, iOffset, iNameIndex); }
98
99 virtual void updateOffset(bool bEager, QxSqlRelationParams & params) const
100 { this->updateOffset_OneToOne(bEager, params); }
101
102 virtual void eagerSelect(QxSqlRelationParams & params) const
103 { this->eagerSelect_OneToOne(params); }
104
105 virtual void eagerJoin(QxSqlRelationParams & params) const
106 { this->eagerJoin_OneToOne(params); }
107
108 virtual void eagerWhereSoftDelete(QxSqlRelationParams & params) const
109 { this->eagerWhereSoftDelete_OneToOne(params); }
110
111 virtual void * eagerFetch_ResolveOutput(QxSqlRelationParams & params) const
112 {
113 if (! this->verifyOffset(params, true)) { return NULL; }
114 QSqlQuery & query = params.query();
115 IxDataMember * p = NULL; IxDataMember * pId = this->getDataId(); qAssert(pId); if (! pId) { return NULL; }
116 long lIndex = 0; long lOffsetId = ((pId && (! params.isDistinct())) ? pId->getNameCount() : 0); bool bValidId(false);
117 long lOffsetOld = params.offset(); this->updateOffset(true, params);
118 long lRelation = 0; IxSqlRelation * pRelation = NULL;
119
120 if (! params.isDistinct())
121 {
122 for (int i = 0; i < pId->getNameCount(); i++)
123 { QVariant v = query.value(lOffsetOld + i); bValidId = (bValidId || qx::trait::is_valid_primary_key(v)); }
124 if (! bValidId) { return NULL; }
125 }
126
127 type_data & currData = this->getData(params);
128 if (! this->callTriggerBeforeFetch(currData, params)) { return NULL; }
129
130 if (! params.isDistinct())
131 {
132 for (int i = 0; i < pId->getNameCount(); i++)
133 { QVariant v = query.value(lOffsetOld + i); pId->fromVariant((& currData), v, i, qx::cvt::context::e_database); }
134 }
135
136 long lOffsetRelation = (lOffsetOld + lOffsetId); long lCurrIndex = 0;
137 while ((p = this->nextData(lIndex)))
138 { if (params.checkColumns(p->getKey())) { p->fromVariant((& currData), query.value(lCurrIndex + lOffsetRelation), -1, qx::cvt::context::e_database); lCurrIndex++; } }
139
140 if (params.relationX())
141 {
142 long lOffsetCurrent = (lCurrIndex + lOffsetRelation);
143 QString sOldCustomAliasOwner = params.getCustomAliasOwner(); params.setCustomAliasOwner(params.getCustomAlias());
144 long lIndexOwnerOld = params.indexOwner(); params.setIndexOwner(params.index());
145 void * pOwnerOld = params.owner(); params.setOwner(& currData);
146 lOffsetOld = params.offset(); params.setOffset(lOffsetCurrent);
147 while ((pRelation = this->nextRelation(lRelation)))
148 { if (this->addLazyRelation(params, pRelation)) { pRelation->lazyFetch_ResolveOutput(params); } }
149 params.setOwner(pOwnerOld); params.setOffset(lOffsetOld);
150 params.setCustomAliasOwner(sOldCustomAliasOwner);
151 params.setIndexOwner(lIndexOwnerOld);
152 }
153
154 if (! this->callTriggerAfterFetch(currData, params)) { return NULL; }
155 return (& currData);
156 }
157
158};
159
160} // namespace qx
161
162#endif // _QX_SQL_RELATION_ONE_TO_ONE_H_
#define qAssert(x)
Definition QxMacro.h:52
Base class for all relationships defined between 2 classes (or between 2 tables in database)
qx::IxDataMember : common interface for all class properties registered into QxOrm context
QString getKey() const
virtual qx_bool fromVariant(void *pOwner, const QVariant &v, const QString &sFormat, int iIndexName=-1, qx::cvt::context::ctx_type ctx=qx::cvt::context::e_no_context)=0
int getNameCount() const
qx::IxSqlRelation : common interface for all relationships defined between 2 classes (or between 2 ta...
bool addLazyRelation(QxSqlRelationParams &params, IxSqlRelation *pRelation) const
void eagerJoin_OneToOne(QxSqlRelationParams &params) const
void eagerWhereSoftDelete_OneToOne(QxSqlRelationParams &params) const
void eagerSelect_OneToOne(QxSqlRelationParams &params) const
IxDataMember * getDataId() const
virtual void lazyFetch_ResolveOutput(QxSqlRelationParams &params) const =0
void updateOffset_OneToOne(bool bEager, QxSqlRelationParams &params) const
bool verifyOffset(QxSqlRelationParams &params, bool bId) const QX_USED
IxDataMember * nextData(long &lIndex) const
IxSqlRelation * nextRelation(long &lIndex) const
QVariant getIdFromQuery_OneToOne(bool bEager, QxSqlRelationParams &params, int iOffset, int iNameIndex) const
void setRelationType(relation_type e)
qx::QxSqlRelation_OneToOne<DataType, Owner> : manage a relationship one-to-one defined between 2 clas...
virtual void lazySelect(QxSqlRelationParams &params) const
virtual QSqlError onBeforeSave(QxSqlRelationParams &params) const
virtual void lazyWhere(QxSqlRelationParams &params) const
virtual bool getCartesianProduct() const
virtual void eagerSelect(QxSqlRelationParams &params) const
virtual QSqlError onAfterSave(QxSqlRelationParams &params) const
virtual QString createExtraTable() const
virtual QString getDescription() const
virtual void lazyUpdate(QxSqlRelationParams &params) const
virtual void lazyUpdate_ResolveInput(QxSqlRelationParams &params) const
virtual void * eagerFetch_ResolveOutput(QxSqlRelationParams &params) const
QxSqlRelation< DataType, Owner >::type_data type_data
virtual void lazyInsert(QxSqlRelationParams &params) const
QxSqlRelation< DataType, Owner >::type_owner type_owner
virtual void eagerWhere(QxSqlRelationParams &params) const
virtual void updateOffset(bool bEager, QxSqlRelationParams &params) const
virtual void lazyInsert_Values(QxSqlRelationParams &params) const
virtual void lazyFetch_ResolveInput(QxSqlRelationParams &params) const
virtual void createTable(QxSqlRelationParams &params) const
virtual void eagerFetch_ResolveInput(QxSqlRelationParams &params) const
virtual void lazyFrom(QxSqlRelationParams &params) const
virtual void lazyFetch_ResolveOutput(QxSqlRelationParams &params) const
virtual void eagerWhereSoftDelete(QxSqlRelationParams &params) const
virtual void lazyWhereSoftDelete(QxSqlRelationParams &params) const
virtual QVariant getIdFromQuery(bool bEager, QxSqlRelationParams &params, int iOffset, int iNameIndex) const
virtual void lazyJoin(QxSqlRelationParams &params) const
virtual void lazyInsert_ResolveInput(QxSqlRelationParams &params) const
virtual void eagerJoin(QxSqlRelationParams &params) const
virtual void eagerFrom(QxSqlRelationParams &params) const
qx::QxSqlRelation<DataType, Owner> : base class for all relationships defined between 2 classes (or b...
bool callTriggerBeforeFetch(type_data &t, QxSqlRelationParams &params) const
bool isNullData(QxSqlRelationParams &params) const
QxSqlRelation< DataType, Owner >::type_tmp_3 type_data
type_data & getData(QxSqlRelationParams &params) const
bool callTriggerAfterFetch(type_data &t, QxSqlRelationParams &params) const
qx::QxSqlRelationParams : define list of parameters to transfer to relationships to manage SQL querie...
void setCustomAliasOwner(const QString &s)
void setIndexOwner(long lIndex)
bool checkColumns(const QString &s) const
qx::dao::save_mode::e_save_mode saveMode() const
QString getCustomAliasOwner() const
type_lst_relation_linked * relationX() const
QSqlError save(T &t, QSqlDatabase *pDatabase=NULL)
Insert (if no exist) or update (if already exist) an element or a list of elements into database.
Definition QxDao.h:158
QSqlError save_with_relation_recursive(T &t, qx::dao::save_mode::e_save_mode eSaveMode=qx::dao::save_mode::e_check_insert_or_update, QSqlDatabase *pDatabase=NULL, qx::QxSqlRelationParams *pRelationParams=NULL)
Insert (if no exist) or update (if already exist) recursively an element and all levels of relationsh...
Definition QxDao.h:621
bool is_valid_primary_key(const T &t)
Root namespace for all QxOrm library features.