Foreign Keys on Python Flask -


Obtaining this error with the DB model. What can be the problem in any idea? 

  Invalid space error: when starting Mapper Mapper. Stand | Stand, expression 'stand.tem_code_name == item_id' failed to detect name ("name 'item_id' is not defined"). If this is a class name, consider adding this relationship; & Lt; class 'app.models.Stand' & gt; The class is defined after both dependent classes. Square stand (db.model): stand_id = db Columns (DB String (10), Primary_Keys = True) Stand_name = DB. Columns (DB String (24), Index = True, Exclusive = True) Item_Code_Name = DB Column (db.String, db.ForeignKey ('item_codes.item_id')) item_codes = db.relationship ('Item_codes', primary join = "stand.item_code_name == item_id") Square Item_codes (db.model): item_id = db Column (db.String (10), primary_keys = true) item_name = db.Column (db.String (100), index = true, exclusive = true) combi = db.Column (db.String (140))   
 
 
 Mapper should know which model to join against  
 < Code> square stand (db.model): stand_id = db Columns (DB String (10), Primary_Keys = True) Stand_name = DB. Columns (db string (24), index = true, unique = true) item_code_name = db Columns (DB String, DB. Phorigki ('Item ID. ITM_ID')) Item_code = DB Relationship ('item code', primarieson = "stand.item_code_name == item_codes.itm_id")   
 I also use the field  Stand.item_code_id  (or with those lines) I recommend calling some). With  _name  I hope to join it against  Item_code.item_name .

Comments

Post a Comment

Popular posts from this blog

c# - ASP.NET MVC - Attaching an entity of type 'MODELNAME' failed because another entity of the same type already has the same primary key value -

In brief, the wrapper module is inserted during posting and the status of an entry is changed to 'modified' . Before changing the state, the state is set to 'separate', but calling attachments () causes the same error to be thrown away. I am using EF 6. Model / wrapper class public class avi model {public A is a {get; Set; } Public listing & lt; B & gt; B {received; Set; } Public cc {receipt; Set; }} Administrator edit public functioning (int? id) {if (id == null) {new HttpStatusCodeResult (HttpStatusCode.BadRequest); } If (! Conveyor Access (id.Value)) new HTTPTitus code result (HTTP status code. Forbidden); Var aViewModel = new AViewModel (); aViewModel.A = db.As.Find (id); If (aViewModel.Receipt == zero) {return HttpNotFound (); } aViewModel.b = db.Bs.Where (x => x.aid == id.Value) .Oolist (); AViewModel.Vendor = db.Cs.Where (x => x.cid == aViewModel.a.cID) .FirstOrDefault (); See Return (aViewModel); } [HTPFost] [Valid AntitiferousTeacon...
Read more

jasper reports - How to center align barcode using jasperreports and barcode4j -

I use iReport 5.5.0 . How to align a barcode component to the center The relevant piece of my jrxml is below & Lt; JR: Code 128 xmlns: JR = "http://jasperreports.sourceforge.net/jasperreports/components" xsi: schemaLocation = "http://jasperreports.sourceforge.net/jasperreports/components http: //jasperreports.sourceforge Purge / xsd / components.xsd "textPosition =" bottom "& gt; & Lt; Jr: codeExpression & gt; & Lt; [CDATA [$ F {number}]] & gt; & Lt; / Jr: codeExpression & gt; & Lt; / Jr: Code 128 & gt; & Lt; / componentElement & gt; "Text" itemprop = "text"> Create a style after this, it is called "barcode", like: & lt; Style name = "barcode" fontName = "Helvetica" fONTSIZE = "10" hAlign = "center" valign = "center" /> and set the property of your barcode element to "barcode".
Read more

django - CommandError: You must set settings.ALLOWED_HOSTS if DEBUG is False -

I use Django 1.6.5 with settings in my program txsite: DEBUG = true I set the lie to debug, but when I get the runner , I get the following error: CommandError: You have to set the settings. OLOWOWHESTS If DEBUG is False I ALLOWED_HOSTS = ['127.0.0.1', 'localhost'] but I get the same error. Does anyone know this address? Try ALLOWED_HOSTS = ['*'] Less secure If you are not on a firewall or public LAN, but what I use and it works. Edit: Interestingly enough, I have to add some of my 1.8 projects, even if DEBUG = True . Why so very uncertain
Read more