ruby on rails - PG::UndefinedTable: ERROR: relation "..." does not exist -


on migration following error message:

pg::undefinedtable: error:  relation "actioncodes" not exist : alter table "organizations" add constraint "fk_rails_4ecaa2493e" foreign key ("actioncode_id")   references "actioncodes" ("id")

i have following migration file organizations:

class createorganizations < activerecord::migration   def change     create_table :organizations |t|       t.string     :name,         null: false,    limit: 40       t.references :actioncode,   index: true,    foreign_key: true       t.boolean    :activated       t.datetime   :activated_at        t.timestamps null: false     end   end end

and actioncodes have migration file:

class createactioncodes < activerecord::migration   def change     create_table :actioncodes |t|       t.string  :code,          null: false,  limit: 20       t.string  :description,                 limit: 255        t.timestamps null: false     end   end end class addindextoactioncodescode < activerecord::migration   def change     add_index :actioncodes, :code,  unique: true   end end

the organization model file includes: belongs_to :actioncode.

while actioncodes model file includes: has_many :organizations.

any idea causing error message?

if remove index: true, foreign_key: true migration file, migrates without errors. , when replace line incorrect line t.references :actioncode_id, index: true, foreign_key: true, gives error below, last line ("ids") suggests rails somehow seems have problem name of table?

pg::undefinedtable: error:  relation "actioncode_ids" not exist : alter table "organizations" add constraint "fk_rails_604f95d1a1" foreign key ("actioncode_id_id")   references "actioncode_ids" ("id")

so issue happening because createorganizations migration being run before createactioncodes executed.

createactioncodes run first thereby ensuring action codes table exists.

the order in migrations run based on time stamp of migration - indicated in name of file. 20141014183645_create_users.rb run before 20141014205756_add_index_to_users_email.rb timestamp of second 1 - 20141014205756 after of first 1 - 20141014183645.

make sure time-stamps of createorganizations migration after of createactioncodes migration.

either manually change timestamp in file names. or delete these migration files, , create them in correct order.


-

Comments

Post a Comment

Popular posts from this blog

c# - Binding a comma separated list to a List<int> in asp.net web api -

the default binder in web api expecst http://url.com/webapi/report/?pageids=3243&pageids=2365 to bind public ihttpactionresult report(list<int> pageids){ // exciting webapi code} i wish bind http://url.com/webapi/report/?pageids=3243,2365 as running out of space in url get . i have created class public class commaseparatedmodelbinder : system.web.http.modelbinding.imodelbinder { public bool bindmodel(httpactioncontext actioncontext, modelbindingcontext bindingcontext) { //binding in here } } and registered in webapiconfig.cs var provider = new simplemodelbinderprovider( typeof(list<int>), new commaseparatedmodelbinder()); config.services.insert(typeof(modelbinderprovider), 0, provider); i have altered method signature use model binder so public ihttpactionresult report( [modelbinder] list<int> pageids){ // exciting webapi code} however break point in binder not being
Read more

Delphi 7 and decode UTF-8 base64 -

in delphi 7, have widestring encoded base64(that received web service widestring result) : pd94bwwgdmvyc2lvbj0ims4wij8+dqo8c3ryaw5nptiq2lpyqjwvc3ryaw5npg== when decoded it, result not utf-8: <?xml version="1.0"?> <string>طھط³طھ</string> but when decoded base64decode.org, result true : <?xml version="1.0"?> <string>تست</string> i have use encddecd unit decodestring function. the problem have using decodestring . function, in delphi 7, treats decoded binary data being ansi encoded. , problem text utf-8 encoded. to continue encddecd unit have couple of options. can switch decodestream . instance, code produce utf-8 encoded text file data: {$apptype console} uses classes, encddecd; const data = 'pd94bwwgdmvyc2lvbj0ims4wij8+dqo8c3ryaw5nptiq2lpyqjwvc3ryaw5npg=='; var input: tstringstream; output: tfilestream; begin input := tstringstream.create(data); try output := tfilestream.
Read more

html - Is there any way to exclude a single element from the style? (Bootstrap) -

so, have img logo, overlaid on div styled background-image: url("...") , , both elements inside 2 div classes .to-color , .to-overlay respectively, black transparent overlay. is there way exclude logo style given these 2 classes? here's jsfiddle example: link html , css example: - html - <div class="to-color"> <div class="to-overlay"> <div class="respo"> <div class="row"> <div class="col-xs-4 col-xs-offset-4 text-center"> <img src="http://ansonalex.com/wp-content/uploads/2011/06/google-logo-768x260.png" alt="..." class="img-responsive"> </div> </div> </div> </div> </div> - css - .to-color { background-color: #000; } .to-overlay { opacity : 0.5; } .respo { background-image: url("https://source.unsplash.com/category/objects/1600x900"); background-position: center center;
Read more