python eve - data_relation on DELETE - preserve/error if referenced2019 Community Moderator ElectionCalling an external command in PythonWhat are metaclasses in Python?Finding the index of an item given a list containing it in PythonDifference between append vs. extend list methods in PythonHow can I safely create a nested directory in Python?Does Python have a ternary conditional operator?How to get the current time in PythonHow can I make a time delay in Python?Does Python have a string 'contains' substring method?Delete a file or folder

Why don't MCU characters ever seem to have language issues?

Plywood subfloor won't screw down in a trailer home

Making a sword in the stone, in a medieval world without magic

Running a subshell from the middle of the current command

Rejected in 4th interview round citing insufficient years of experience

Make a transparent 448*448 image

Potentiometer like component

Is it illegal in Germany to take sick leave if you caused your own illness with food?

Should QA ask requirements to developers?

How does Dispel Magic work against Stoneskin?

Why must traveling waves have the same amplitude to form a standing wave?

Is it true that real estate prices mainly go up?

How could a female member of a species produce eggs unto death?

Latest web browser compatible with Windows 98

Sword in the Stone story where the sword was held in place by electromagnets

Best approach to update all entries in a list that is paginated?

What exactly is the purpose of connection links straped between the rocket and the launch pad

Touchscreen-controlled dentist office snowman collector game

Draw arrow on sides of triangle

Should we release the security issues we found in our product as CVE or we can just update those on weekly release notes?

Replacing Windows 7 security updates with anti-virus?

Ban on all campaign finance?

Excess Zinc in garden soil

How to deal with a cynical class?



python eve - data_relation on DELETE - preserve/error if referenced



2019 Community Moderator ElectionCalling an external command in PythonWhat are metaclasses in Python?Finding the index of an item given a list containing it in PythonDifference between append vs. extend list methods in PythonHow can I safely create a nested directory in Python?Does Python have a ternary conditional operator?How to get the current time in PythonHow can I make a time delay in Python?Does Python have a string 'contains' substring method?Delete a file or folder










1















currently when I DELETE an item which is being referenced by. I can still delete it. I would like to prohibit this giving an error. I couldn't find anything on http://docs.python-eve.org or google.



say I have the following two schemas:



foos = 
...
'schema' :
...,
'bar':
'type': 'string',
'required': true,
'data_relation':
'resource': 'bars',
'field': 'name',
'embeddable': True





bars =
...
'schema' :
...,
'name':
'type': 'string',
'required': true,





if I delete now an item from bars which is still being referenced by >=1 items in foos. How could I return an error instead of deleting the bars item?



Would i need to write a



on_delete_item
def event(resource_name, item)


and how? Any help is appreciated.










share|improve this question







New contributor




Simon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
Check out our Code of Conduct.
























    1















    currently when I DELETE an item which is being referenced by. I can still delete it. I would like to prohibit this giving an error. I couldn't find anything on http://docs.python-eve.org or google.



    say I have the following two schemas:



    foos = 
    ...
    'schema' :
    ...,
    'bar':
    'type': 'string',
    'required': true,
    'data_relation':
    'resource': 'bars',
    'field': 'name',
    'embeddable': True





    bars =
    ...
    'schema' :
    ...,
    'name':
    'type': 'string',
    'required': true,





    if I delete now an item from bars which is still being referenced by >=1 items in foos. How could I return an error instead of deleting the bars item?



    Would i need to write a



    on_delete_item
    def event(resource_name, item)


    and how? Any help is appreciated.










    share|improve this question







    New contributor




    Simon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
    Check out our Code of Conduct.






















      1












      1








      1








      currently when I DELETE an item which is being referenced by. I can still delete it. I would like to prohibit this giving an error. I couldn't find anything on http://docs.python-eve.org or google.



      say I have the following two schemas:



      foos = 
      ...
      'schema' :
      ...,
      'bar':
      'type': 'string',
      'required': true,
      'data_relation':
      'resource': 'bars',
      'field': 'name',
      'embeddable': True





      bars =
      ...
      'schema' :
      ...,
      'name':
      'type': 'string',
      'required': true,





      if I delete now an item from bars which is still being referenced by >=1 items in foos. How could I return an error instead of deleting the bars item?



      Would i need to write a



      on_delete_item
      def event(resource_name, item)


      and how? Any help is appreciated.










      share|improve this question







      New contributor




      Simon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.












      currently when I DELETE an item which is being referenced by. I can still delete it. I would like to prohibit this giving an error. I couldn't find anything on http://docs.python-eve.org or google.



      say I have the following two schemas:



      foos = 
      ...
      'schema' :
      ...,
      'bar':
      'type': 'string',
      'required': true,
      'data_relation':
      'resource': 'bars',
      'field': 'name',
      'embeddable': True





      bars =
      ...
      'schema' :
      ...,
      'name':
      'type': 'string',
      'required': true,





      if I delete now an item from bars which is still being referenced by >=1 items in foos. How could I return an error instead of deleting the bars item?



      Would i need to write a



      on_delete_item
      def event(resource_name, item)


      and how? Any help is appreciated.







      python eve






      share|improve this question







      New contributor




      Simon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.











      share|improve this question







      New contributor




      Simon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      share|improve this question




      share|improve this question






      New contributor




      Simon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.









      asked Mar 7 at 10:40









      SimonSimon

      185




      185




      New contributor




      Simon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.





      New contributor





      Simon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






      Simon is a new contributor to this site. Take care in asking for clarification, commenting, and answering.
      Check out our Code of Conduct.






















          0






          active

          oldest

          votes











          Your Answer






          StackExchange.ifUsing("editor", function ()
          StackExchange.using("externalEditor", function ()
          StackExchange.using("snippets", function ()
          StackExchange.snippets.init();
          );
          );
          , "code-snippets");

          StackExchange.ready(function()
          var channelOptions =
          tags: "".split(" "),
          id: "1"
          ;
          initTagRenderer("".split(" "), "".split(" "), channelOptions);

          StackExchange.using("externalEditor", function()
          // Have to fire editor after snippets, if snippets enabled
          if (StackExchange.settings.snippets.snippetsEnabled)
          StackExchange.using("snippets", function()
          createEditor();
          );

          else
          createEditor();

          );

          function createEditor()
          StackExchange.prepareEditor(
          heartbeatType: 'answer',
          autoActivateHeartbeat: false,
          convertImagesToLinks: true,
          noModals: true,
          showLowRepImageUploadWarning: true,
          reputationToPostImages: 10,
          bindNavPrevention: true,
          postfix: "",
          imageUploader:
          brandingHtml: "Powered by u003ca class="icon-imgur-white" href="https://imgur.com/"u003eu003c/au003e",
          contentPolicyHtml: "User contributions licensed under u003ca href="https://creativecommons.org/licenses/by-sa/3.0/"u003ecc by-sa 3.0 with attribution requiredu003c/au003e u003ca href="https://stackoverflow.com/legal/content-policy"u003e(content policy)u003c/au003e",
          allowUrls: true
          ,
          onDemand: true,
          discardSelector: ".discard-answer"
          ,immediatelyShowMarkdownHelp:true
          );



          );






          Simon is a new contributor. Be nice, and check out our Code of Conduct.









          draft saved

          draft discarded


















          StackExchange.ready(
          function ()
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f55041792%2fpython-eve-data-relation-on-delete-preserve-error-if-referenced%23new-answer', 'question_page');

          );

          Post as a guest















          Required, but never shown

























          0






          active

          oldest

          votes








          0






          active

          oldest

          votes









          active

          oldest

          votes






          active

          oldest

          votes








          Simon is a new contributor. Be nice, and check out our Code of Conduct.









          draft saved

          draft discarded


















          Simon is a new contributor. Be nice, and check out our Code of Conduct.












          Simon is a new contributor. Be nice, and check out our Code of Conduct.











          Simon is a new contributor. Be nice, and check out our Code of Conduct.














          Thanks for contributing an answer to Stack Overflow!


          • Please be sure to answer the question. Provide details and share your research!

          But avoid


          • Asking for help, clarification, or responding to other answers.

          • Making statements based on opinion; back them up with references or personal experience.

          To learn more, see our tips on writing great answers.




          draft saved


          draft discarded














          StackExchange.ready(
          function ()
          StackExchange.openid.initPostLogin('.new-post-login', 'https%3a%2f%2fstackoverflow.com%2fquestions%2f55041792%2fpython-eve-data-relation-on-delete-preserve-error-if-referenced%23new-answer', 'question_page');

          );

          Post as a guest















          Required, but never shown





















































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown

































          Required, but never shown














          Required, but never shown












          Required, but never shown







          Required, but never shown







          Popular posts from this blog

          Identity Server 4 is not redirecting to Angular app after login2019 Community Moderator ElectionIdentity Server 4 and dockerIdentityserver implicit flow unauthorized_clientIdentityServer Hybrid Flow - Access Token is null after user successful loginIdentity Server to MVC client : Page Redirect After loginLogin with Steam OpenId(oidc-client-js)Identity Server 4+.NET Core 2.0 + IdentityIdentityServer4 post-login redirect not working in Edge browserCall to IdentityServer4 generates System.NullReferenceException: Object reference not set to an instance of an objectIdentityServer4 without HTTPS not workingHow to get Authorization code from identity server without login form

          2005 Ahvaz unrest Contents Background Causes Casualties Aftermath See also References Navigation menue"At Least 10 Are Killed by Bombs in Iran""Iran"Archived"Arab-Iranians in Iran to make April 15 'Day of Fury'"State of Mind, State of Order: Reactions to Ethnic Unrest in the Islamic Republic of Iran.10.1111/j.1754-9469.2008.00028.x"Iran hangs Arab separatists"Iran Overview from ArchivedConstitution of the Islamic Republic of Iran"Tehran puzzled by forged 'riots' letter""Iran and its minorities: Down in the second class""Iran: Handling Of Ahvaz Unrest Could End With Televised Confessions""Bombings Rock Iran Ahead of Election""Five die in Iran ethnic clashes""Iran: Need for restraint as anniversary of unrest in Khuzestan approaches"Archived"Iranian Sunni protesters killed in clashes with security forces"Archived

          Can't initialize raids on a new ASUS Prime B360M-A motherboard2019 Community Moderator ElectionSimilar to RAID config yet more like mirroring solution?Can't get motherboard serial numberWhy does the BIOS entry point start with a WBINVD instruction?UEFI performance Asus Maximus V Extreme