wouldn't the structure of the database be determined by the fact you have a many to many relationship ? i.e. the two tables would decompose into three with a 'link' table defining the many to may part ? steve "Mike Gifford" <[EMAIL PROTECTED]> wrote in message [EMAIL PROTECTED]">news:[EMAIL PROTECTED]... > Hello, > > I'm not sure if anyone else as the need for a php/MySQL based bibliography, but > the application that I am developing (which is basically a module for phpSlash) > is coming along fairly well. If anyone is interested in seeing the code I can > bundle it up and send it out to them (still a long way from finished mind). The > draft version of it is up and running here: > http://openconcept.ca/WLP/biblio/index.php3 > > I'm running into a couple problems though that I don't have the logic language > for and I was hoping folks here could help me (as you have done in the past). > > The problem is that I've set up a many to many table to ensure that I can have > an author be listed as writing many books and a book be written by many authors. > > However in listing the books as a bibliography (as the URL above), I want to be > able to list multiple authors, and do so in a different format for the first > author than for all subsequent ones. > > I'm hoping to be able to produce output like this: > Young, D. and N. Dixon. Helping Leaders Take Effective Action: A Program > Evaluation. Greensboro, North Carolina: Center for Creative Leadership, > 1996. > > > So, I think the first challenge should be to calculate which books have multiple > authors by doing something like this (It's using phplib structures, sorry): > > $q2 = "SELECT * FROM WLPbib2profile ORDER BY bibID"; > $this->db->query($q2); // Performs above query > while ($this->db->next_record()) { > if ($this->db->Record["bibID"] != $last_bibID) { > echo "<br>" . $this->db->Record["bibID"] . " : " . $this->db->Record["profileID"]; > } else { // Multiple Authors > echo ", " . $this->db->Record["profileID"]; > $multiple_profileID .= array ($this->db->Record["bibID"] => > $this->db->Record["profileID"]); > $multiple_profileID .= array($this->db->Record["bibID"] => > "yes"); > } > $last_bibID = $this->db->Record["bibID"]; > } > } > > With this I can then use the value $multiple_profileID to determine if this > record has duplicates or not and use something like this to include both authors > and not repeat the bibliography item: > > if ($multiple_profileID[$bibID]=="yes") { > while (list($key, $val) = each($multiple_profileID)) { > $written_by = $key . " : " . $val . "<br>"; > if ($this->db->Record["firstName"]) { > $written_by .= stripslashes($this->db->Record["firstName"]) . " "; > } > if($this->db->Record["lastName"]) { > $written_by .= stripslashes($this->db->Record["lastName"]); > } > } > } else { > > if($this->db->Record["lastName"]) { > $written_by .= stripslashes($this->db->Record["lastName"]) . ", "; > } > if ($this->db->Record["firstName"]) { > $written_by .= stripslashes($this->db->Record["firstName"]); > } > } > > But this seems really awkward (at the best of times) and (worst of all) it isn't > working. > > I've got another related problem in that I've set up the following fields in one > table: > firstName > lastName > organization > > and I need to be able to order them by a combination of lastName & organization. > I could list the organization field simply as the lastName, but that seems > like it would be confusing the data types... Must be a way around this.. I > suspect it is limited by my logic & not PHP's. > > Any ideas would be appreciated. > > Mike > -- > Mike Gifford, OpenConcept Consulting, http://openconcept.ca > Offering everything your organization needs for an effective web site. > Abolish Nuclear Weapons Now!: http://pgs.ca/petition/ > It is a miracle that curiosity survives formal education. - A Einstein > -- PHP General Mailing List (http://www.php.net/) To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED] To contact the list administrators, e-mail: [EMAIL PROTECTED]
