Value present in not-null constraint column but Postgres throws Exception

Today I have updated my project to DotNetCore 2.2. Since then, I am getting not-null constraint column error from Npgsql.PostgresException, even though values are present.

Npgsql.PostgresException: 23502: null value in column "ItemCode"
violates not-null constraint

        [HttpPost]

        public async Task<IActionResult> PostItem([FromBody] JObject data)

        {

            PKTable pkt = JsonConvert.DeserializeObject<PKTable>(data["pkd"].ToString());

            List<FKTable> fkts = JsonConvert.DeserializeObject<List<FKTable>>(data["fkd"].ToString());



            pkt.itemCode = "ABCD"; // Primary Key Column

            _context.PKTables.Add(pkt);

            try

            {

                if (await _context.SaveChangesAsync() > 0) // PKTable

                {

                    fkt.ForEach(u => { u.itemCode = item.itemCode; }); // Data present here in debug

                    _context.FKTables.AddRange(fkts);  // Data present here in debug

                    await _context.SaveChangesAsync(); // Throws error.

                }

            }

            catch (DbUpdateException ex)

            { throw; }



            return Ok(new { r = item.itemCode });

        }

edited Jan 4 at 18:20

marc_s

583k13011241270

asked Jan 2 at 15:30

Ramesh

15211

add a comment |

Today I have updated my project to DotNetCore 2.2. Since then, I am getting not-null constraint column error from Npgsql.PostgresException, even though values are present.

Npgsql.PostgresException: 23502: null value in column "ItemCode"
violates not-null constraint

        [HttpPost]

        public async Task<IActionResult> PostItem([FromBody] JObject data)

        {

            PKTable pkt = JsonConvert.DeserializeObject<PKTable>(data["pkd"].ToString());

            List<FKTable> fkts = JsonConvert.DeserializeObject<List<FKTable>>(data["fkd"].ToString());



            pkt.itemCode = "ABCD"; // Primary Key Column

            _context.PKTables.Add(pkt);

            try

            {

                if (await _context.SaveChangesAsync() > 0) // PKTable

                {

                    fkt.ForEach(u => { u.itemCode = item.itemCode; }); // Data present here in debug

                    _context.FKTables.AddRange(fkts);  // Data present here in debug

                    await _context.SaveChangesAsync(); // Throws error.

                }

            }

            catch (DbUpdateException ex)

            { throw; }



            return Ok(new { r = item.itemCode });

        }

edited Jan 4 at 18:20

marc_s

583k13011241270

asked Jan 2 at 15:30

Ramesh

15211

add a comment |

Today I have updated my project to DotNetCore 2.2. Since then, I am getting not-null constraint column error from Npgsql.PostgresException, even though values are present.

Npgsql.PostgresException: 23502: null value in column "ItemCode"
violates not-null constraint

        [HttpPost]

        public async Task<IActionResult> PostItem([FromBody] JObject data)

        {

            PKTable pkt = JsonConvert.DeserializeObject<PKTable>(data["pkd"].ToString());

            List<FKTable> fkts = JsonConvert.DeserializeObject<List<FKTable>>(data["fkd"].ToString());



            pkt.itemCode = "ABCD"; // Primary Key Column

            _context.PKTables.Add(pkt);

            try

            {

                if (await _context.SaveChangesAsync() > 0) // PKTable

                {

                    fkt.ForEach(u => { u.itemCode = item.itemCode; }); // Data present here in debug

                    _context.FKTables.AddRange(fkts);  // Data present here in debug

                    await _context.SaveChangesAsync(); // Throws error.

                }

            }

            catch (DbUpdateException ex)

            { throw; }



            return Ok(new { r = item.itemCode });

        }

edited Jan 4 at 18:20

marc_s

583k13011241270

asked Jan 2 at 15:30

Ramesh

15211

Today I have updated my project to DotNetCore 2.2. Since then, I am getting not-null constraint column error from Npgsql.PostgresException, even though values are present.

Npgsql.PostgresException: 23502: null value in column "ItemCode"
violates not-null constraint

        [HttpPost]

        public async Task<IActionResult> PostItem([FromBody] JObject data)

        {

            PKTable pkt = JsonConvert.DeserializeObject<PKTable>(data["pkd"].ToString());

            List<FKTable> fkts = JsonConvert.DeserializeObject<List<FKTable>>(data["fkd"].ToString());



            pkt.itemCode = "ABCD"; // Primary Key Column

            _context.PKTables.Add(pkt);

            try

            {

                if (await _context.SaveChangesAsync() > 0) // PKTable

                {

                    fkt.ForEach(u => { u.itemCode = item.itemCode; }); // Data present here in debug

                    _context.FKTables.AddRange(fkts);  // Data present here in debug

                    await _context.SaveChangesAsync(); // Throws error.

                }

            }

            catch (DbUpdateException ex)

            { throw; }



            return Ok(new { r = item.itemCode });

        }

c# asp.net-core-2.2 postgresql-11

edited Jan 4 at 18:20

marc_s

583k13011241270

asked Jan 2 at 15:30

Ramesh

15211

edited Jan 4 at 18:20

marc_s

583k13011241270

asked Jan 2 at 15:30

Ramesh

15211

edited Jan 4 at 18:20

marc_s

583k13011241270

edited Jan 4 at 18:20

marc_s

583k13011241270

edited Jan 4 at 18:20

marc_s

583k13011241270

asked Jan 2 at 15:30

Ramesh

15211

asked Jan 2 at 15:30

Ramesh

15211

asked Jan 2 at 15:30

Ramesh

15211

add a comment |

2 Answers
2

active

oldest

votes

you are filling fkt but

_context.FKTables.AddRange(fkts); <-- this is fkts.

I believe that you have logical mistake here.

answered Jan 2 at 15:35

Derviş Kayımbaşıoğlu

15.6k22042

Deployed API working as expected. We have not updated this controller, post update to v2.2

– Ramesh
Jan 2 at 15:50

add a comment |

I mapped foreign key as [ForeignKey("ItemCode")]. Now, changed this as [ForeignKey("itemCode")].

Its working now. I wounder why it worked in earlier version that is Core 2.1.

answered Jan 2 at 16:37

Ramesh

15211

add a comment |

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2 Answers
2

active

oldest

votes

2 Answers
2

active

oldest

votes

you are filling fkt but

_context.FKTables.AddRange(fkts); <-- this is fkts.

I believe that you have logical mistake here.

answered Jan 2 at 15:35

Derviş Kayımbaşıoğlu

15.6k22042

Deployed API working as expected. We have not updated this controller, post update to v2.2

– Ramesh
Jan 2 at 15:50

add a comment |

you are filling fkt but

_context.FKTables.AddRange(fkts); <-- this is fkts.

I believe that you have logical mistake here.

answered Jan 2 at 15:35

Derviş Kayımbaşıoğlu

15.6k22042

Deployed API working as expected. We have not updated this controller, post update to v2.2

– Ramesh
Jan 2 at 15:50

add a comment |

you are filling fkt but

_context.FKTables.AddRange(fkts); <-- this is fkts.

I believe that you have logical mistake here.

answered Jan 2 at 15:35

Derviş Kayımbaşıoğlu

15.6k22042

you are filling fkt but

_context.FKTables.AddRange(fkts); <-- this is fkts.

I believe that you have logical mistake here.

answered Jan 2 at 15:35

Derviş Kayımbaşıoğlu

15.6k22042

answered Jan 2 at 15:35

Derviş Kayımbaşıoğlu

15.6k22042

answered Jan 2 at 15:35

Derviş Kayımbaşıoğlu

15.6k22042

answered Jan 2 at 15:35

Derviş Kayımbaşıoğlu

15.6k22042

Deployed API working as expected. We have not updated this controller, post update to v2.2

– Ramesh
Jan 2 at 15:50

add a comment |

Deployed API working as expected. We have not updated this controller, post update to v2.2

– Ramesh
Jan 2 at 15:50

Deployed API working as expected. We have not updated this controller, post update to v2.2

– Ramesh
Jan 2 at 15:50

add a comment |

I mapped foreign key as [ForeignKey("ItemCode")]. Now, changed this as [ForeignKey("itemCode")].

Its working now. I wounder why it worked in earlier version that is Core 2.1.

answered Jan 2 at 16:37

Ramesh

15211

add a comment |

I mapped foreign key as [ForeignKey("ItemCode")]. Now, changed this as [ForeignKey("itemCode")].

Its working now. I wounder why it worked in earlier version that is Core 2.1.

answered Jan 2 at 16:37

Ramesh

15211

add a comment |

I mapped foreign key as [ForeignKey("ItemCode")]. Now, changed this as [ForeignKey("itemCode")].

Its working now. I wounder why it worked in earlier version that is Core 2.1.

answered Jan 2 at 16:37

Ramesh

15211

I mapped foreign key as [ForeignKey("ItemCode")]. Now, changed this as [ForeignKey("itemCode")].

Its working now. I wounder why it worked in earlier version that is Core 2.1.

answered Jan 2 at 16:37

Ramesh

15211

answered Jan 2 at 16:37

Ramesh

15211

answered Jan 2 at 16:37

Ramesh

15211

answered Jan 2 at 16:37

Ramesh

15211

add a comment |

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